Renewable biomass-derived carbon materials have attracted increasing research attention as promising electrode materials for electrochemical energy storage devices, such as sodium-ion batteries (SIBs), due to their ou...Renewable biomass-derived carbon materials have attracted increasing research attention as promising electrode materials for electrochemical energy storage devices, such as sodium-ion batteries (SIBs), due to their outstanding electrical conductivity, hierarchical porous structure, intrinsic heteroatom doping, and environmental friendliness. Here, we investigate the potential of hierarchical N-doped porous carbon (NPC) derived from jackfruit rags through a facile pyrolysis as an anode material for SIBs. The cycling performance of NPC at 1 A/g for 2000 cycles featured a stable reversible capacity of 122.3 mA h/g with an outstanding capacity retention of 99.1%. These excellent electrochemical properties can be attributed to the unique structure of NPC;it features hierarchical porosity with abundant carbon edge defects and large speci c surface areas. These results illuminate the potential application of jackfruit rags-derived porous carbon in SIBs.展开更多
Shipping tycoon Mai Jiawei attributes his success to atough upbringing and China’s rapid expansion sincethe reform and opening-up policies were introduced
大数据技术在地球科学中的应用已成为国家战略重点,《“十四五”大数据产业发展规划》等政策为多源异构数据整合提供了支撑。大语言模型(LLM)是一种基于深度学习技术的人工智能模型。然而,通用大语言模型(如GPT-4、Deepseek-R1)在专业...大数据技术在地球科学中的应用已成为国家战略重点,《“十四五”大数据产业发展规划》等政策为多源异构数据整合提供了支撑。大语言模型(LLM)是一种基于深度学习技术的人工智能模型。然而,通用大语言模型(如GPT-4、Deepseek-R1)在专业领域存在局限性,因训练语料缺乏地球科学细分知识,导致回答笼统或错误(即“幻觉”)(Singhal et al.,2025),Zhou Zhi等(2024)在医疗领域通过Med-PaLM2构建垂直知识库,He Yong等(2024)法律领域基于LawGPT实现法规精准检索。在地球科学领域尚未形成系统的本地化知识问答方案。展开更多
基金financially supported by National Natural Science Foundation of China (Nos. 21875253, 21703249)the 1000 Plan Professorship for Young Talents
文摘Renewable biomass-derived carbon materials have attracted increasing research attention as promising electrode materials for electrochemical energy storage devices, such as sodium-ion batteries (SIBs), due to their outstanding electrical conductivity, hierarchical porous structure, intrinsic heteroatom doping, and environmental friendliness. Here, we investigate the potential of hierarchical N-doped porous carbon (NPC) derived from jackfruit rags through a facile pyrolysis as an anode material for SIBs. The cycling performance of NPC at 1 A/g for 2000 cycles featured a stable reversible capacity of 122.3 mA h/g with an outstanding capacity retention of 99.1%. These excellent electrochemical properties can be attributed to the unique structure of NPC;it features hierarchical porosity with abundant carbon edge defects and large speci c surface areas. These results illuminate the potential application of jackfruit rags-derived porous carbon in SIBs.
文摘Shipping tycoon Mai Jiawei attributes his success to atough upbringing and China’s rapid expansion sincethe reform and opening-up policies were introduced
文摘大数据技术在地球科学中的应用已成为国家战略重点,《“十四五”大数据产业发展规划》等政策为多源异构数据整合提供了支撑。大语言模型(LLM)是一种基于深度学习技术的人工智能模型。然而,通用大语言模型(如GPT-4、Deepseek-R1)在专业领域存在局限性,因训练语料缺乏地球科学细分知识,导致回答笼统或错误(即“幻觉”)(Singhal et al.,2025),Zhou Zhi等(2024)在医疗领域通过Med-PaLM2构建垂直知识库,He Yong等(2024)法律领域基于LawGPT实现法规精准检索。在地球科学领域尚未形成系统的本地化知识问答方案。
