Electrospinning Synthesis of Mesoporous MnCoNiOx@Double-Carbon Nanofibers for Sodium-Ion Battery Anodes with Pseudocapacitive Behavior and Long Cycle Life | |
Department | 清洁能源化学与材料实验室 |
Wu LJ(吴利军)1,2; Lang JW(郎俊伟)1; Wang RT(王儒涛)1; Guo RS(郭瑞生)1; Yan XB(阎兴斌)1; Yan XB(阎兴斌) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | ACS Applied Materials and Interfaces |
ISSN | 1944-8244 |
Volume | 8Issue:50Pages:34342-34352 |
Abstract | In this work, MnCoNiOx (denoted as MCNO) nanocrystals (with a size of less than 30 nm) finely encapsulated in double-carbon (DC, including reduced graphene oxide and amorphous carbon derived by polymer) composite nanofibers (MCNO@DC) were successfully synthesized via an electrospinning method followed by a sintering treatment. The as-obtained MCNO@DC nanofibers present superior sodium storage performance and retain an especially high specific capacity of 230 mAh g–1 with a large capacity retention of about 96% at 0.1 A g–1 after 500 cycles and a specific capacity of 107 mAh g–1 with capacity retention of about 89% at 1 A g–1 after 6500 cycles. The outstanding cycle characteristic is mainly due to the tiny MCNO nanoparticles, which shorten the ion migration distance, and the three-dimensional DC framework, which remarkably promotes the electronic transfer and efficiently limits the volume expansion during the progress of insertion and extraction of Na+ ions. Moreover, nitrogen doped in carbon is able to improve the electrochemical capability as well. Finally, kinetic analysis of the redox reactions is used to verify the pseudocapacitive mechanism in charge storage and the feasibility of using MCNO@DC composite nanofibers as an anode for sodium-ion batteries with the above-mentioned behavior. |
Keyword | Sodium-ion Battery Anode Transition-metal Oxide Carbon-encapsulating Pseudocapacitive Behavior |
Subject Area | 材料科学与物理化学 |
DOI | 10.1021/acsami.6b11238 |
Funding Organization | the National Natural Science Foundation of China (Grants 51501208;21673263;21573265) |
Indexed By | SCI |
If | 7.504 |
Language | 英语 |
Funding Project | 低维材料与化学储能课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21212 |
Collection | 清洁能源化学与材料实验室 固体润滑国家重点实验室(LSL) |
Corresponding Author | Yan XB(阎兴斌) |
Affiliation | 1.Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
Recommended Citation GB/T 7714 | Wu LJ,Lang JW,Wang RT,et al. Electrospinning Synthesis of Mesoporous MnCoNiOx@Double-Carbon Nanofibers for Sodium-Ion Battery Anodes with Pseudocapacitive Behavior and Long Cycle Life[J]. ACS Applied Materials and Interfaces,2016,8(50):34342-34352. |
APA | Wu LJ,Lang JW,Wang RT,Guo RS,Yan XB,&阎兴斌.(2016).Electrospinning Synthesis of Mesoporous MnCoNiOx@Double-Carbon Nanofibers for Sodium-Ion Battery Anodes with Pseudocapacitive Behavior and Long Cycle Life.ACS Applied Materials and Interfaces,8(50),34342-34352. |
MLA | Wu LJ,et al."Electrospinning Synthesis of Mesoporous MnCoNiOx@Double-Carbon Nanofibers for Sodium-Ion Battery Anodes with Pseudocapacitive Behavior and Long Cycle Life".ACS Applied Materials and Interfaces 8.50(2016):34342-34352. |
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