期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 823, 期 -, 页码 80-91出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.05.037
关键词
Coordination polymer; NiV2O6/C composite; Supercapacitor; Energy storage; Electrochromic
资金
- National Natural Science Foundation of China [21371184, 21771028]
- National-Municipal Joint Engineering Laboratory for Chemical Process Intensification and Reaction
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
NiV2O6/C composites are prepared via a solid-state conversion process by low temperature (150 degrees C) annealing nickel-vanadium-based coordination polymer, [Ni(phen)H2O][V2O6]. The obtained NiV2O6/C nanoribbons are interconnected to form a sponge-like morphology, when the composites are first used as supercapacitor electrode, it exhibits a specific capacitance of 745.6 F g(-1) at 0.5 A g(-1) with a good rate capability of 520.0 F g(-1) (69.7% retention) at 10 A g(-1) (20-folds). The NiV2O6/C composite exhibits good cycling performance, the capacitance retentions at 6000th and 12000th charging/discharging cycles at 2 A g(-1) are 81.5% and 77.8% relative to the original capacitances, respectively. The morphological and compositional changes of the NiV2O6/C composite electrode before and after 12,000 GCD cycles (two-electrode system) are carefully elaborated through a series of characterization (SEM, EDS, and )(PS). Furthermore, the NiV2O6/C nanoribbons possess reversible electrochromism, which is probably related to the intervalence charge transfer (IVCT, V-IV -> V-V).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据