Nanostructure-modified in-situ synthesis of nitrogen-doped porous carbon microspheres (NPCM) loaded with FeTe2 nanocrystals and NPCM as superior anodes to construct high-performance lithium-ion capacitors | |
Jia, Qing-Chao1; Zhang, Hu-Jun1; Kong, Ling-Bin1,2 | |
刊名 | ELECTROCHIMICA ACTA
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2020-03-20 | |
卷号 | 337 |
关键词 | FeTe2 nanocrystals Nitrogen-doped porous carbon microspheres (NPCM) Hierarchical porous carbon (HPC) High energy-power density Lithium-ion capacitors |
ISSN号 | 0013-4686 |
DOI | 10.1016/j.electacta.2020.135749 |
英文摘要 | Lithium-ion capacitors (LICs) are the new generation of hybrid energy storage devices because they combine the advantages of both lithium-ion batteries and supercapacitors. This paper reports a threedimensional N-doped porous carbon microspheres (NPCM) prepared from polymers with aromatic skeletons, and in-situ growth of FeTe2 nanocrystals in carbon microspheres to form 3D network nanohybrid FeTe2@NPCM-2 composite. This porous microsphere structure facilitates the provision of sufficient room to buffer the large volume expansion effects of the FeTe2 cycle, the unique carbon matrix NPCM has numerous active sites, excellent electrical conductivity and stable tap density. Simultaneously, using biomass mung-bean shells as precursor to prepare hierarchical porous carbon (HPC) as cathode material of LIC, it exhibits a huge specific surface area (SSA) (2103.31 m(2)g(-1)), abundant micro-mesopores and possible oxygen-containing functional groups. The constructed LIC FeTe2@NPCM-2//HPC and NPCM// HPC have ultrahigh energy density (228.29 and 192.96 W h kg(-1)) and superior power density (10 and 10 kW kg(-1)) and good cycle retention rate. Hence, we hope that lithium-ion capacitors with transition metal tellurides as anodes have broad application prospects in the fields of new energy 3C electronic products and hybrid vehicles. (C) 2020 Elsevier Ltd. All rights reserved. |
资助项目 | National Natural Science Foundation of China[51971104][51762031] |
WOS研究方向 | Electrochemistry |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000521531700051 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/64250] ![]() |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 材料科学与工程学院 |
通讯作者 | Kong, Ling-Bin |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Jia, Qing-Chao,Zhang, Hu-Jun,Kong, Ling-Bin. Nanostructure-modified in-situ synthesis of nitrogen-doped porous carbon microspheres (NPCM) loaded with FeTe2 nanocrystals and NPCM as superior anodes to construct high-performance lithium-ion capacitors[J]. ELECTROCHIMICA ACTA,2020,337. |
APA | Jia, Qing-Chao,Zhang, Hu-Jun,&Kong, Ling-Bin.(2020).Nanostructure-modified in-situ synthesis of nitrogen-doped porous carbon microspheres (NPCM) loaded with FeTe2 nanocrystals and NPCM as superior anodes to construct high-performance lithium-ion capacitors.ELECTROCHIMICA ACTA,337. |
MLA | Jia, Qing-Chao,et al."Nanostructure-modified in-situ synthesis of nitrogen-doped porous carbon microspheres (NPCM) loaded with FeTe2 nanocrystals and NPCM as superior anodes to construct high-performance lithium-ion capacitors".ELECTROCHIMICA ACTA 337(2020). |
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