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
With the increase of energy consumption,the shortage of fossil resource,and the aggravation of environmental pollution,the development of cost-effective and environmental friendly bio-based energy storage devices has ...With the increase of energy consumption,the shortage of fossil resource,and the aggravation of environmental pollution,the development of cost-effective and environmental friendly bio-based energy storage devices has become an urgent need.As the second most abundant natural polymer found in nature,lignin is mainly produced as the by-product of paper pulping and bio-refining industries.It possesses several inherent advantages,such as low-cost,high carbon content,abundant functional groups,and bio-renewable,making it an attractive candidate for the rechargeable battery material.Consequently,there has been a surge of research interest in utilizing lignin or lignin-based carbon materials as the components of lithium-ion(LIBs)or sodium-ion batteries(SIBs),including the electrode,binder,separator,and electrolyte.This review provides a comprehensive overview on the research progress of lignin-derived materials used in LIBs/SIBs,especially the application of lignin-based carbons as the anodes of LIBs/SIBs.The preparation methods and properties of lignin-derived materials with different dimensions are systemically discussed,which emphasizes on the relationship between the chemical/physical structures of lignin-derived materials and the performances of LIBs/SIBs.The current challenges and future prospects of lignin-derived materials in energy storage devices are also proposed.展开更多
Many strategies have been proposed to produce arenes from lignin as liquid fuel additives.However,the development of these methods is limited by the low yield of products,low atom utilization,and inefficient lignin de...Many strategies have been proposed to produce arenes from lignin as liquid fuel additives.However,the development of these methods is limited by the low yield of products,low atom utilization,and inefficient lignin depolymerization.Herein,we develop an energy-efficient synthetic method for the production of high-carbon-number arenes from sustainable lignin with a total yield of 23.1 wt%.Particularly,high carbon number arenes are obtained by fully utilizing the formaldehyde stabilizing additive and the methoxy group in lignin.The process begins with the reductive depolymerization of formaldehyde-stabilized lignin,followed by transmethylation between lignin monomers over Au/Nb_(2)O_(5) catalyst,and the Ru/Nb2O5-catalyzed hydrodeoxygenation.This work demonstrates the potential of value-added arenes production directly from lignin.展开更多
Due to the features and wide range of potential applications,cellulose ionogels are the subject of extensive research.Green celluloses have been employed as a three-dimensional skeleton network to restrict the ionic l...Due to the features and wide range of potential applications,cellulose ionogels are the subject of extensive research.Green celluloses have been employed as a three-dimensional skeleton network to restrict the ionic liquids(ILs)toward advanced ion-conductive ionogels.Diversiform cellulose ionogels with desirable perfor-mances,via physical/chemical reactions between cellulose and ILs,have been harvested,which have the po-tential to emerge as a bright star in the field of flexible electronics,such as sensors,electrolyte materials as power sources,and thermoelectric devices.Herein,a review regarding cellulose ionogels in terms of fundamental types of cellulose,formation strategies and mechanism,and principal properties is presented.Next,the diverse application prospects of cellulose ionogels in flexible electronics have been summarized.More importantly,the future challenges and advancing directions to be explored for cellulose ionogels are discussed.展开更多
为促进木质素与胶原基材料领域的国际学术交流,推动青年科研人才的成长与创新,2025年10月10—12日,2025第五届木质素和胶原基材料青年国际会议在大连成功举办。本次会议由大连工业大学、四川大学、齐鲁工业大学(山东省科学院)、广西大...为促进木质素与胶原基材料领域的国际学术交流,推动青年科研人才的成长与创新,2025年10月10—12日,2025第五届木质素和胶原基材料青年国际会议在大连成功举办。本次会议由大连工业大学、四川大学、齐鲁工业大学(山东省科学院)、广西大学、陕西科技大学、武汉轻工大学联合主办,《Journal of Bioresources and Bioproducts》、中国造纸杂志社、制革清洁技术国家工程实验室、广西清洁化制浆造纸与污染控制重点实验室、绿色造纸与资源循环全国重点实验室、农业废弃物资源化利用湖北省重点实验室、辽宁省制浆造纸工程实验室、辽宁省生物质化学与材料重点实验室、辽宁省木质纤维生物质精炼协同创新中心、中国轻工业植物资源高值化利用重点实验室、武汉轻工大学化学与环境工程学院、大连工业大学轻工与化学工程学院联合承办。展开更多
基金supported by Natural Science and Engineering Research Council of Canada(RGPIN-2017-06737)Canada Research Chairs program,the National Key Research and Development Program of China(2017YFD0601005,2022YFD0904201)+1 种基金the National Natural Science Foundation of China(51203075)the China Scholarship Council(Grant No.CSC202208320361).
文摘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.
基金supported by the Key R&D Program of Shandong Province,China(2023CXGC010611)the State Key Project of International Cooperation Research(2023YFE0201100)the Program for Introducing Talents of Discipline to Universities(“111”plan),and the High-Level Discipline Program of Shandong Province of China.
文摘With the increase of energy consumption,the shortage of fossil resource,and the aggravation of environmental pollution,the development of cost-effective and environmental friendly bio-based energy storage devices has become an urgent need.As the second most abundant natural polymer found in nature,lignin is mainly produced as the by-product of paper pulping and bio-refining industries.It possesses several inherent advantages,such as low-cost,high carbon content,abundant functional groups,and bio-renewable,making it an attractive candidate for the rechargeable battery material.Consequently,there has been a surge of research interest in utilizing lignin or lignin-based carbon materials as the components of lithium-ion(LIBs)or sodium-ion batteries(SIBs),including the electrode,binder,separator,and electrolyte.This review provides a comprehensive overview on the research progress of lignin-derived materials used in LIBs/SIBs,especially the application of lignin-based carbons as the anodes of LIBs/SIBs.The preparation methods and properties of lignin-derived materials with different dimensions are systemically discussed,which emphasizes on the relationship between the chemical/physical structures of lignin-derived materials and the performances of LIBs/SIBs.The current challenges and future prospects of lignin-derived materials in energy storage devices are also proposed.
文摘Many strategies have been proposed to produce arenes from lignin as liquid fuel additives.However,the development of these methods is limited by the low yield of products,low atom utilization,and inefficient lignin depolymerization.Herein,we develop an energy-efficient synthetic method for the production of high-carbon-number arenes from sustainable lignin with a total yield of 23.1 wt%.Particularly,high carbon number arenes are obtained by fully utilizing the formaldehyde stabilizing additive and the methoxy group in lignin.The process begins with the reductive depolymerization of formaldehyde-stabilized lignin,followed by transmethylation between lignin monomers over Au/Nb_(2)O_(5) catalyst,and the Ru/Nb2O5-catalyzed hydrodeoxygenation.This work demonstrates the potential of value-added arenes production directly from lignin.
基金supported by the National Natural Science Foundation of China(No.32271976,32371978)scientific and technological innovation funding of Fujian Agriculture and Forestry University(KFb22087,KFB23145).
文摘Due to the features and wide range of potential applications,cellulose ionogels are the subject of extensive research.Green celluloses have been employed as a three-dimensional skeleton network to restrict the ionic liquids(ILs)toward advanced ion-conductive ionogels.Diversiform cellulose ionogels with desirable perfor-mances,via physical/chemical reactions between cellulose and ILs,have been harvested,which have the po-tential to emerge as a bright star in the field of flexible electronics,such as sensors,electrolyte materials as power sources,and thermoelectric devices.Herein,a review regarding cellulose ionogels in terms of fundamental types of cellulose,formation strategies and mechanism,and principal properties is presented.Next,the diverse application prospects of cellulose ionogels in flexible electronics have been summarized.More importantly,the future challenges and advancing directions to be explored for cellulose ionogels are discussed.
文摘为促进木质素与胶原基材料领域的国际学术交流,推动青年科研人才的成长与创新,2025年10月10—12日,2025第五届木质素和胶原基材料青年国际会议在大连成功举办。本次会议由大连工业大学、四川大学、齐鲁工业大学(山东省科学院)、广西大学、陕西科技大学、武汉轻工大学联合主办,《Journal of Bioresources and Bioproducts》、中国造纸杂志社、制革清洁技术国家工程实验室、广西清洁化制浆造纸与污染控制重点实验室、绿色造纸与资源循环全国重点实验室、农业废弃物资源化利用湖北省重点实验室、辽宁省制浆造纸工程实验室、辽宁省生物质化学与材料重点实验室、辽宁省木质纤维生物质精炼协同创新中心、中国轻工业植物资源高值化利用重点实验室、武汉轻工大学化学与环境工程学院、大连工业大学轻工与化学工程学院联合承办。
