Preparation of a NbN/graphene nanocomposite by solution impregnation and its application in highperformance Li-ion hybrid capacitors | |
Department | 清洁能源化学与材料实验室 |
Chen, Zhen-Kun1,2; Lang JW(郎俊伟)2; Liu, Ling-Yang2; Kong LB(孔令斌)1; Kong LB(孔令斌) | |
The second department | 固体润滑国家重点实验室 |
2017 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 7Issue:32Pages:19967-19975 |
Abstract | Lithium-ion hybrid capacitors (LIHCs) have received a mushrooming amount of attention due to their high power density and energy density. However, the imbalanced dynamics between positive and negative electrodes limit their practical applications. Thus, in order to develop a kind of anode material with high power, we report a simple synthesis technology of a NbN nanoparticles/graphene nanosheets (NbN/GNSs) nanocomposite with fast Li insertion/extraction properties. Through a facile solution impregnation followed by annealing treatment, we get a freestanding layer-stacked structure combining 2D graphene nanosheets and 0D NbN nanoparticles. It shows a high reversible capacity of ≈ 450 mA h g−1 at 0.1 A g−1, moreover, as a result of the fast pseudocapacitive performance, it also shows a remarkable rate capability and cycle stability (90% capacity retention at 5 A g−1 after 10000 cycles). Meanwhile, the LIHC with a NbN/GNSs anode and activated polyaniline derived carbon (APDC) cathode delivers the maximum energy density of 136 W h kg−1, and the highest power density of 25 kW kg−1 as well as a stable cycle life in the potential range of 1.0–4.0 V. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7ra01671a |
Funding Organization | the National Natural Science Foundation of China (No. 51362018;21673263);the Foundation for Innovation Groups of Basic Research in Gansu Province (No. 1606RJIA322) |
Indexed By | SCI |
If | 3.108 |
Language | 英语 |
Funding Project | 低维材料与化学储能研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21807 |
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 | Kong LB(孔令斌) |
Affiliation | 1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, PR China 2.Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China |
Recommended Citation GB/T 7714 | Chen, Zhen-Kun,Lang JW,Liu, Ling-Yang,et al. Preparation of a NbN/graphene nanocomposite by solution impregnation and its application in highperformance Li-ion hybrid capacitors[J]. RSC Advances,2017,7(32):19967-19975. |
APA | Chen, Zhen-Kun,Lang JW,Liu, Ling-Yang,Kong LB,&孔令斌.(2017).Preparation of a NbN/graphene nanocomposite by solution impregnation and its application in highperformance Li-ion hybrid capacitors.RSC Advances,7(32),19967-19975. |
MLA | Chen, Zhen-Kun,et al."Preparation of a NbN/graphene nanocomposite by solution impregnation and its application in highperformance Li-ion hybrid capacitors".RSC Advances 7.32(2017):19967-19975. |
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