期刊文献+
共找到85,727篇文章
< 1 2 250 >
每页显示 20 50 100
Advancing device-level strategies for MXene-based green electromagnetic shielding:From attenuation mechanisms to architecture design
1
作者 Siteng Li Jincheng Shu +3 位作者 Yulin Guo Zhifang Liu Yilin Sun Weijia Luo 《Nano Research》 2026年第1期1299-1328,共30页
The widespread proliferation of modern wireless devices coupled with overlapping power emissions has brought about electromagnetic(EM)pollution issues,posing many challenges to environment and human health.Therefore,t... The widespread proliferation of modern wireless devices coupled with overlapping power emissions has brought about electromagnetic(EM)pollution issues,posing many challenges to environment and human health.Therefore,the development of EM shielding devices with high green shielding index(gs)is essential,as they offer absorption-dominant protection that minimizes reflections and safeguards both health and electronics.MXene,with its intrinsic ultra-high electrical conductivity,liquid-phase tunable surface chemistry,low density,large specific surface area,thermal stability,and mechanical stability,has become the leading two-dimensional(2D)material driving the development of green EM shielding devices.In this review we emphasize device-level strategies with engineered architectures for MXene-based green EM shielding.We first examine MXene’s crystal and electronic structure and the fundamental attenuation mechanisms in MXene-based devices.Then we survey fabrication and assembly methods,analyzing three device-level strategies for MXene-based green EM shielded devices:3D architectures,metastructure/meta-surfaces,and external stimulus.Throughout,we highlight how MXene’s distinguished properties enable green EM interference(EMI)shielding devices that minimize secondary interference.Finally,we discuss the challenges faced in the effective utilization of MXene-based in green EM shielding devices,provide insights into these challenges,and offer guidelines for developing the solutions of next-generation green MXene-based EM shielding devices. 展开更多
关键词 MXene attenuation mechanisms architecture design green electromagnetic(EM)shielding
原文传递
Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors 被引量:1
2
作者 Haonan Zhang Cheng Hao +6 位作者 Tongtong Fu Dian Yu Jane Howe Kaiwen Chen Ning Yan Hao Ren Huamin Zhai 《Nano-Micro Letters》 SCIE EI CAS 2025年第2期447-462,共16页
With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has surged.In this work,a novel gradient-layered architecture was design based on single-pore hollow lignin... With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has surged.In this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable supercapacitors.By depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene lamella.Moreover,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of lignin.All these strategies effectively enhanced the capacitive performance of the electrodes.In addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the electrodes.Flexible electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),respectively.Moreover,their capacitances were well preserved after 1000 times of 600%stretch-release cycling.This study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials. 展开更多
关键词 Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors
在线阅读 下载PDF
Optimization method of heat transfer architecture for aircraft fuel thermal management systems 被引量:1
3
作者 Jiangtao XU Haotian TAN +3 位作者 Jitao WU Jiayi HAN Sirong SU Hongqing LYU 《Chinese Journal of Aeronautics》 2025年第8期300-312,共13页
Modern aircraft tend to use fuel thermal management systems to cool onboard heat sources.However,the design of heat transfer architectures for fuel thermal management systems relies on the experience of the engineers ... Modern aircraft tend to use fuel thermal management systems to cool onboard heat sources.However,the design of heat transfer architectures for fuel thermal management systems relies on the experience of the engineers and lacks theoretical guidance.This paper proposes a concise graph representation method based on graph theory for fuel thermal management systems,which can represent all possible connections between subsystems.A generalized optimization algorithm is proposed for fuel thermal management system architecture to minimize the heat sink.This algorithm can autonomously arrange subsystems with heat production differences and efficiently utilize the architecture of the fuel heat sink.At the same time,two evaluation indices are proposed from the perspective of subsystems.These indices intuitively and clearly show that the reason for the high efficiency of heat sink utilization is the balanced and moderate cooling of each subsystem and verify the rationality of the architecture optimization method.A set of simulations are also conducted,which demonstrate that the fuel tank temperature has no effect on the performance of the architecture.This paper provides a reference for the architectural design of aircraft fuel thermal management systems.The metrics used in this paper can also be utilized to evaluate the existing architecture. 展开更多
关键词 Fuel thermal management systems architecture optimization Graph theory Fuel heat sink Fuel distribution
原文传递
Progradational sequence stratigraphic architecture of the Triassic Yanchang Formation and a case study of Qingcheng Oilfield,Ordos Basin,NW China 被引量:1
4
作者 HUI Xiao HOU Yunchao +2 位作者 QU Tong ZHANG Jie YANG Zhi 《Petroleum Exploration and Development》 2025年第5期1164-1178,共15页
To address the discrepancies between well and seismic data in stratigraphic correlation of the Triassic Yanchang Formation in the Ordos Basin,NW China,traditional stratigraphic classification schemes,the latest 3D sei... To address the discrepancies between well and seismic data in stratigraphic correlation of the Triassic Yanchang Formation in the Ordos Basin,NW China,traditional stratigraphic classification schemes,the latest 3D seismic and drilling data,and reservoir sections are thoroughly investigated.Guided by the theory of sequence stratigraphy,the progradational sequence stratigraphic framework of the Yanchang Formation is systematically constructed to elucidate new deposition mechanisms in the depressed lacustrine basin,and it has been successfully applied to the exploration and development practices in the Qingcheng Oilfield.Key findings are obtained in three aspects.First,the seismic progradational reflections,marker tuff beds,and condensed sections of flooding surfaces in the Yanchang Formation are consistent and isochronous.Using flooding surface markers as a reference,a progradational sequence stratigraphic architecture is reconstructed for the middle-upper part of Yanchang Formation,and divided into seven clinoform units(CF1-CF7).Second,progradation predominantly occurs in semi-deep to deep lake environments,with the depositional center not always coinciding with the thickest strata.The lacustrine basin underwent an evolution of“oscillatory regression-progradational infilling-multi-phase superimposition”.Third,the case study of Qingcheng Oilfield reveals that the major pay zones consist of“isochronous but heterochronous”gravity-flow sandstone complexes.Guided by the progradational sequence stratigraphic architecture,horizontal well oil-layer penetration rates remain above 82%.The progradational sequence stratigraphic architecture and associated geological insights are more consistent with the sedimentary infilling mechanisms of large-scale continental depressed lacustrine basins and actual drilling results.The research results provide crucial theoretical and technical support for subsequent refined exploration and development of the Yanchang Formation,and are expected to offer a reference for research and production practice in similar continental lacustrine basins. 展开更多
关键词 progradational sequence stratigraphic architecture CLINOFORM flooding surface continental depression lacustrine basin Ordos Basin TRIASSIC Yanchang Formation
在线阅读 下载PDF
Architecture to Secure Electrical Control System in Cyber-Physical System
5
作者 Depeng Li 《Journal of Information Security》 2025年第1期149-157,共9页
It’s possible for malicious operators to seize hold of electrical control systems, for instance, the engine control unit of driverless vehicles, from various vectors, e.g. autonomic control system, remote vehicle acc... It’s possible for malicious operators to seize hold of electrical control systems, for instance, the engine control unit of driverless vehicles, from various vectors, e.g. autonomic control system, remote vehicle access, or human drivers. To mitigate potential risks, this paper provides the inauguration study by proposing a theoretical framework in the physical, human and cyber triad. Its goal is to, at each time point, detect adversary control behaviors and protect control systems against malicious operations via integrating a variety of methods. This paper only proposes a theoretical framework which tries to indicate possible threats. With the support of the framework, the security system can lightly reduce the risk. The development and implementation of the system are out of scope. 展开更多
关键词 architecture Control System FRAMEWORK
在线阅读 下载PDF
The Evolution of Vernacular Architecture in Siwa Oasis,Egypt
6
作者 Riham Mohammed Jaber Ahmed 《Journal of Civil Engineering and Architecture》 2025年第6期288-295,共8页
Not always climate and cultural contexts are discussed at the forefront of architectural discussions on traditional or vernacular architecture,nevertheless,the construction material also plays a significant part in de... Not always climate and cultural contexts are discussed at the forefront of architectural discussions on traditional or vernacular architecture,nevertheless,the construction material also plays a significant part in defining places’architectural languages.Building from the local materials is an essential ingredient of the local distinctiveness,whilst forming the architectural grand gesture in its context.In Siwa oasis,salt architecture has formed that architectural grand gesture.The vernacular vocabularies adopted by old Bedouins using salt bricks generated Siwa’s unique spirit.In this paper,some examples are illustrated based on a series of site visits to three main sites in Siwa,namely:Old Shali,Abu Shuruf,and Aghourmy.This shows the evolution of Siwa’s vernacular architecture and the role of the architectural language or detrimental effect on the overall quality of architecture.From the site visits,it was observed that building with the traditional technique is now becoming abandoned in Siwa,explained by the local builders to be due to the huge costs required;forcing them to shifting to modern architecture.The influx to building using modern techniques has led to a significant transformation in the urban morphology and spirit of Siwa.Herein lies the scope of this paper:to discuss the impact of the evolution of vernacular architecture on the overall quality of architecture in Siwa and thus identifying the problems which will lead to policy formulation and guidelines for the redevelopment of Siwa in order to“revitalize/resuscitate”its vernacular style accordingly. 展开更多
关键词 Vernacular architecture Neo-vernacular architecture Siwa EGYPT
在线阅读 下载PDF
Global workspace theory-based cognitive architecture for robots
7
作者 HUANG Wenjie CANGELOSI Angelo CHELLA Antonio 《宁波大学学报(理工版)》 2025年第2期49-58,共10页
This paper adopts the Global Workspace Theory as a neuro-scientifically plausible theory for developing conscious cognitive architecture.The Global Workspace Theory’s compatibility with the working mechanisms underne... This paper adopts the Global Workspace Theory as a neuro-scientifically plausible theory for developing conscious cognitive architecture.The Global Workspace Theory’s compatibility with the working mechanisms underneath human brains is enhanced by the implementation of different cognitive features based on this framework.Amongst the topics in the literature for intelligent systems,we start with attention,memory and learning mechanisms,and corresponding experiments are summarized here.We also discuss how other topics of cognitive robotics could be developed based on these three basic components,and their correlations.This provides a foundation for future long-term development of cognitive architectures of cognitive robots.The research in this paper follows the incremental research pathway for the architecture implementation,which is consistent with the Biologically Inspired Cognitive Architecture roadmap. 展开更多
关键词 Global Workspace Theory cognitive architecture INCREMENTAL biologically inspired cognitive architecture
在线阅读 下载PDF
Spatial Design and Garden Architecture of Baiyun Taoist Temple in Lanzhou
8
作者 ZHANG Leyuan 《Journal of Landscape Research》 2025年第5期20-22,27,共4页
A restoration concept has been developed based on the Baiyun Taoist Temple Map found in the Continuation of the Gaolan County Annals.This study systematically analyzes the architectural features of Baiyun Taoist Templ... A restoration concept has been developed based on the Baiyun Taoist Temple Map found in the Continuation of the Gaolan County Annals.This study systematically analyzes the architectural features of Baiyun Taoist Temple in Lanzhou during the Daoguang period of the Qing Dynasty from three perspectives:overall layout,spatial design,and garden artistic conception.The analysis offers a representative case for understanding the spatial organization principles and cultural connotation of Taoist architecture in the Lanzhou region during the Qing Dynasty. 展开更多
关键词 Baiyun Taoist Temple Temple space Garden architecture Taoist architecture Gardens of the Qing Dynasty
在线阅读 下载PDF
Architecture is Made for People,A Holistic-Phenomenological Approach to Architecture:A Case Study of Kibbutz Ma’agan Michael,Israel
9
作者 Nili Portugali 《Journal of Architectural Research and Development》 2025年第3期159-164,共6页
The aim of this article is to present my interpretation of the holistic-phenomenological worldview in practice.This study demonstrates how this approach,as well as the planning process that I followed(a process fundam... The aim of this article is to present my interpretation of the holistic-phenomenological worldview in practice.This study demonstrates how this approach,as well as the planning process that I followed(a process fundamentally different from conventional ones)was implemented in a residential neighborhood I designed and built in the social,economic,and physical structure of the collective known in Israel as a‘kibbutz’.The intention is to raise a broad public discussion and pose a challenge to 21st-century architecture regarding how to intervene in a moral and human way within an existing environment,urban or natural,which must be respected and preserved,when integrating within it a new contemporary architecture. 展开更多
关键词 HOLISTIC PHENOMENOLOGY architecture Kibbutz Residential neighborhood
在线阅读 下载PDF
Novel regulatory mechanisms of plant root architecture: roles of hydrogen sulfide and phytohormones
10
作者 Ji-Sheng Li 《Life Research》 2025年第2期34-35,共2页
Overview of root system architecture.The plant root system is a highly dynamic and multifunctional organ system composed of primary roots,lateral roots,adventitious roots,and root hairs.Based on topological morphology... Overview of root system architecture.The plant root system is a highly dynamic and multifunctional organ system composed of primary roots,lateral roots,adventitious roots,and root hairs.Based on topological morphology,root systems can be classified as taproot systems or fibrous root systems.Root system architecture(RSA)refers to the spatial distribution and extension patterns of roots within soil,encompassing characteristics such as root length,branching angle,density,and spatial arrangement.RSA not only determines the plant’s capacity to acquire water and nutrients but also influences other root functions,playing a decisive role in overall plant health. 展开更多
关键词 organ system root system architecture fibrous root systemsroot system architecture rsa refers taproot systems novel regulatory mechanisms PHYTOHORMONES root system hydrogen sulfide
在线阅读 下载PDF
Research on the Protection and Transformation of Traditional Architecture
11
作者 Jingxuan Hu 《Journal of World Architecture》 2025年第2期69-75,共7页
Traditional architecture,as a crucial component of human cultural heritage,conveys significant historical context and cultural significance while reflecting regional traits and national identity.Nevertheless,in the fa... Traditional architecture,as a crucial component of human cultural heritage,conveys significant historical context and cultural significance while reflecting regional traits and national identity.Nevertheless,in the face of rapid modernization,traditional architecture is encountering challenges on an unprecedented scale.This study focuses on examining the strategies for preserving and transforming traditional architecture.By evaluating the importance,issues,and obstacles associated with safeguarding traditional architecture,this paper seeks to propose effective and rational conservation approaches and transformation techniques,ultimately aiming to ensure the sustainable development and cultural continuity of traditional architecture. 展开更多
关键词 Traditional architecture PROTECTION TRANSFORMATION Cultural inheritance
在线阅读 下载PDF
Research on Construction Technology and Plant Beautification Strategies in Landscape Architecture Site Management
12
作者 Zhihang Zhou 《Journal of Architectural Research and Development》 2025年第4期10-16,共7页
This paper explores the collaborative management model of construction technology and plant beautification strategies in landscape architecture site management.It analyzes the key aspects of construction technology an... This paper explores the collaborative management model of construction technology and plant beautification strategies in landscape architecture site management.It analyzes the key aspects of construction technology and the implementation points of plant beautification strategies,constructs a synergy mechanism between technology and strategy,and proposes a dynamic adjustment and multi-professional collaboration model.The effectiveness of this model is verified through practical case studies,providing theoretical support and practical references for the refined construction of landscape architecture. 展开更多
关键词 Landscape architecture Construction technology Plant beautification
在线阅读 下载PDF
Computational cognitive architectures,dual-process theories,and LLMs
13
作者 SUN Ron 《宁波大学学报(理工版)》 2025年第2期17-28,共12页
This paper introduces a computational cognitive architecture that serves as a comprehensive computational theory of the human mind,from cognitive science and computational psychology.The cognitive architecture(named C... This paper introduces a computational cognitive architecture that serves as a comprehensive computational theory of the human mind,from cognitive science and computational psychology.The cognitive architecture(named Clarion)has been justified by,and validated against,psychological data,findings,and theoretical constructs.One important theoretical background for it is the dual-process theories,which led to its overall two-level structuring in a hybrid neuro-symbolic way.Furthermore,given the recent advances in AI and computing technology,LLMs are being incorporated into the model to better capture human intuition and instinct(and implicit processes in general),in order to further enhance Clarion.Integrating Clarion and LLMs can also help to develop AI systems that are more capable,more reliable,and more human-like.Overall,the paper advocates a multidisciplinary approach towards developing better models for cognitive science and for AI. 展开更多
关键词 cognitive architecture LLM dual process PSYCHOLOGY AI
在线阅读 下载PDF
Construction and Empirical Study of a Digital Evaluation Model for Classroom Teaching Quality in Private Colleges and Universities:A Case Study of Landscape Architecture Major at Chongqing University of Humanities,Science and Technology
14
作者 LI Guoqing DU Kaiwei +1 位作者 XU Yunfeng TANG Min 《Journal of Landscape Research》 2025年第5期65-70,74,共7页
Focusing on the digital evaluation of classroom teaching quality in private colleges and universities,an indicator model of“teaching subject-teaching object-teaching effect”for the landscape architecture major of Ch... Focusing on the digital evaluation of classroom teaching quality in private colleges and universities,an indicator model of“teaching subject-teaching object-teaching effect”for the landscape architecture major of Chongqing College of Humanities,Science&Technology was constructed.By using methods such as Delphi,AHP,Likert and questionnaire survey,the teaching quality of 8 courses of landscape architecture major was evaluated.The results show that the average score of the indicators is 2.8776,indicating that the overall improvement space for the teaching quality of the sample professional courses is relatively large,and the key shortcomings are students’learning interest and initiative,the application and transformation of professional knowledge,as well as the cultivation of innovation and practical ability.The research verified the scientific nature and discrimination of the model,and put forward suggestions for the precise improvement of classroom atmosphere,assignment design and ability cultivation driven by data,thereby providing a replicable model for the digital evaluation and teaching quality improvement of engineering majors in private colleges and universities. 展开更多
关键词 Digital evaluation Teaching quality Landscape architecture
在线阅读 下载PDF
Living geometry,AI tools,and Alexander’s 15 fundamental properties.Remodel the architecture studios!
15
作者 Nikos A.Salingaros 《Frontiers of Architectural Research》 2025年第6期1491-1515,共25页
A universal set of mathematical qualities combine complexity with geometry to define“living geometry”.Those properties apply equally to organisms as to inanimate matter.A special type of geometry that merges approxi... A universal set of mathematical qualities combine complexity with geometry to define“living geometry”.Those properties apply equally to organisms as to inanimate matter.A special type of geometry that merges approximate fractal structure with nested symmetries on all scales describes most biological and natural forms.Christopher Alexander discovered 15 geometrical properties in the context of architecture adapted to human feelings,and those provide a practical toolkit for creating living geometry in artifacts,buildings,and urban spaces.AI can be used to both validate the importance of living geometry for human health,and to evaluate architectural designs before and after they are built.Human beings evolved their neurological system to interpret living geometry defined by the ancestral natural environment,and the same interpretative reference is used to navigate today’s built environment.This knowledge helps to understand how geometry affects cognition,emotions,and health.Asking large-language models about the best learning environments for creative thought produces a list of suggestions for renovating lecture and studio spaces in architecture schools.A severe disconnect between the contemporary urban experience and living geometry has negative effects on human health,intelligence,and the learning process.AI helps to completely rethink design aesthetics and design-making strategies. 展开更多
关键词 AI architecture Built environment Christopher Alexander GEOMETRY Human intelligence
原文传递
A Holistic Approach to Architecture A Case Study: Music Center and Library, Tel-Aviv
16
作者 Nili Portugali 《Journal of World Architecture》 2025年第2期98-108,共11页
The aim of this article is to present a unique interpretation of the holistic worldview,both in theory and in practice.It explores how this approach,along with a planning process fundamentally different from conventio... The aim of this article is to present a unique interpretation of the holistic worldview,both in theory and in practice.It explores how this approach,along with a planning process fundamentally different from conventional methods,was implemented in the design and construction of the Music Center and Library in the city of Tel Aviv.This process forms a coherent representation of a complete worldview:a humanistic,holistic worldview developed and adopted through more than five decades of architectural practice across all scales of design.In this approach,a building is not regarded as a collection of isolated design elements,but as one hierarchical language,in which the building,its interior,and its ornamented details down to the handle of the door is one continuous system.Within this system,the building,its interior spaces,and even the smallest ornamental details,down to the door handles,are conceived as parts of a single,continuous whole.This worldview aligns with contemporary scientific discourse in fields such as cosmology,neurobiology,psychology,complexity theory,and Buddhist philosophy,disciplines with which this body of work is closely associated. 展开更多
关键词 HOLISTIC PHENOMENOLOGY architecture Organic Music center and library
在线阅读 下载PDF
Research on the Construction Path of the Training Model for Applied Talents in the Architecture Major of Universities in the New Era
17
作者 Huinan Liu Yukang Cheng 《Journal of World Architecture》 2025年第3期102-108,共7页
In the context of the new era,deepening education reform and improving the quality of talent cultivation are important measures for universities to align with industry trends and the development needs of students.With... In the context of the new era,deepening education reform and improving the quality of talent cultivation are important measures for universities to align with industry trends and the development needs of students.With the continuous growth of the economy,the construction industry is undergoing rapid development and transformation,and there is an increasing demand for high-quality and high-level applied talents,which poses certain challenges to the architecture majors in universities.Therefore,universities should actively follow the industry development trends and the characteristics of talents,clarify the talent cultivation objectives,optimize the professional teaching system,and promote the high-quality development of education.The cultivation of applied talents in the architecture major of universities is not only an internal requirement for the development of the construction industry but also an important part of the country’s innovation-driven development strategy.It is of great significance for promoting scientific and technological progress,enhancing cultural confidence,and promoting the comprehensive development of the economy and society. 展开更多
关键词 INTERDISCIPLINARY New era architecture Innovative thinking Talent cultivation INDUSTRY
在线阅读 下载PDF
A novel automated neural network architecture search method of air target intent recognition
18
作者 Ke WANG Yafei SONG +5 位作者 Yunfei XU Wen QUAN Peng NI Peng WANG Chenghai LI Xinyan ZHI 《Chinese Journal of Aeronautics》 2025年第6期26-40,共15页
Modern air battlefield operations are characterized by flexibility and change, and the battlefield evolves rapidly and intricately. However, traditional air target intent recognition methods, which mainly rely on manu... Modern air battlefield operations are characterized by flexibility and change, and the battlefield evolves rapidly and intricately. However, traditional air target intent recognition methods, which mainly rely on manually designed neural network models, find it difficult to maintain sustained and excellent performance in such a complex and changing environment. To address the problem of the adaptability of neural network models in complex environments, we propose a lightweight Transformer model(TransATIR) with a strong adaptive adjustment capability, based on the characteristics of air target intent recognition and the neural network architecture search technique. After conducting extensive experiments, it has been proved that TransATIR can efficiently extract the deep feature information from battlefield situation data by utilizing the neural architecture search algorithm, in order to quickly and accurately identify the real intention of the target. The experimental results indicate that TransATIR significantly improves recognition accuracy compared to the existing state-of-the-art methods, and also effectively reduces the computational complexity of the model. 展开更多
关键词 Intentrecognition TRANSFORMER Neural architecture search Deep learning Situationalawareness
原文传递
Janus-inspired alternating architecture CNF/MXene/ZnFe2O4@PANI composite films with outstanding electromagnetic interference shielding and Joule heating
19
作者 Lian Yin Jiale Zhang +4 位作者 Jianjian Luo Yongqian Shi Bin Yu Sheng Zhang Keqing Zhou 《Journal of Materials Science & Technology》 2025年第20期275-286,共12页
With the continuous advancement of electronic devices,flexible thin films with both thermal manage-ment functions and excellent electromagnetic interference(EMI)shielding properties have received much attention.Hence,... With the continuous advancement of electronic devices,flexible thin films with both thermal manage-ment functions and excellent electromagnetic interference(EMI)shielding properties have received much attention.Hence,inspired by Janus,a CNF/MXene/ZnFe2O4@PANI composite film with an asymmetric gradient alternating structure was successfully prepared by adjusting the filler content of the conduc-tive and magnetic layers using a vacuum-assisted filtration method.Benefiting from the magnetic reso-nance and hysteresis loss of ZnFe2O4@PANI,conductive loss and dipole polarization of MXene,as well as the exclusive"absorption-reflection-reabsorption"shielding feature in the alternating multilayered films,CM&CZFP-4 G film has superior EMI shielding performance,with an EMI SE of up to 45.75 dB and shield-ing effectiveness of 99.99%.Surprisingly,the composite film maintains reliable EMI shielding properties even after prolonged erosion in harsh environments such as high/low temperatures,high humidity,acids and alkalis.Furthermore,the CM&CZFP-4 G responded quickly within about 50 s and reached a maximum steady-state temperature of 235.8℃ at an applied voltage of 9.0 V,indicating the obtained film acquired outstanding and controllable Joule heating performance.This result was attributed to the homogeneous dispersion of MXene to build up a conductive network and endow the CNF/MXene with high conduc-tivity.Meanwhile,the fire resistance of CM&CZFP-4 G was significantly improved compared to pure CNF,which guaranteed fire safety during its application.Additionally,contributed by long fiber entanglement of CNF,extensive hydrogen-bonding interactions and multilayer structural design,the CM&CZFP-4 G film exhibits excellent mechanical characteristics,with the tensile strength and fracture strain of 27.74 MPa and 6.21%,separately.This work offers a creative avenue to prepare multifunctional composite films with electromagnetic shielding and Joule heating for various application environments. 展开更多
关键词 MXene Asymmetric Alternating architecture Electromagnetic interference shielding Joule heating
原文传递
Endowing rapid Na^(+)conduction by architecture design of Na_(3)Zr_(2)Si_(2)PO_(12)in composite electrolytes for ultralong lifespan quasi-solid-state sodium metal batteries
20
作者 Kang-Qiang He Xin-Gan Liao +5 位作者 Hao-Jian Lian Xiang Guan Da-Zhu Chen Yi-Kun Su Robert K.Y.Li Chen Liu 《Rare Metals》 2025年第6期3795-3805,共11页
Solid-state sodium batteries offer new opportunities for emerging applications with sensitivity to safety and cost.However,the prevailing composite electrolyte structure,as a core component,is still poorly conductive ... Solid-state sodium batteries offer new opportunities for emerging applications with sensitivity to safety and cost.However,the prevailing composite electrolyte structure,as a core component,is still poorly conductive to Na ions.Herein,a 3D architecture design of Na^(+)conductive Na_(3)Zr_(2)Si_(2)PO_(12)framework is introduced to in situ compound with polymer electrolyte,subtly inducing an anion-enriched interface that acts as rapid ion immigration channel.Multiple continuous and fast Na^(+)transport pathways are built via the amorphization of polymer matrix,the consecutive skeleton,and the induced anion-adsorbed interface,resulting in a high ionic conductivity of4.43×10^(-4)S.cm^(-1).Notably,the design of 3D skeleton not only enables the content of inorganic part exceeds 60wt%without any sign of agglomeration,but also endows the composite electrolyte reach a high transference number of 0.61 by immobilizing the anions.The assembled quasisolid-state cells exhibit high practical safety and can stably work for over 1500 cycles with 83.1%capacity retention.This tactic affords new insights in designing Na^(+)conductive composite electrolytes suffering from slow ion immigration for quasi-solid-state sodium batteries. 展开更多
关键词 Composite electrolyte Quasi-solid-state sodium battery architecture design
原文传递
上一页 1 2 250 下一页 到第
使用帮助 返回顶部