期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 17, 页码 6264-6270出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta10719a
关键词
-
资金
- Fundamental Research Funds for the Central Universities [xjj2015119]
- National Natural Science Foundation of China [51273158, 21303131]
Hierarchical hybrid nanostructures based on flexible graphene sheets and ternary transition metal oxides have attracted special attention as high-performance electrodematerials for next-generation lithium-ion batteries (LIBs) yet their practical application is often beset with challenges. In this work, we report a hierarchical hybrid nano-composite of reduced graphene oxide supported mesoporous Co3V2O8 nanoparticles (rGO@Co3V2O8 NPs) through a simple hydrothermal synthesis and post-calcination. This unique hybrid architecture when used as an anode in LIBs would effectively facilitate charge transfer, maintain structural integrity and accommodate the volume variation of the electrode materials during the repeated charge/discharge processes. As a result, the hybrid rGO@Co3V2O8 NPs manifest a very stable high reversible capacity of 1050 mA h g(-1) over 200 cycles at a current density of 50 mA g(-1) and excellent rate capability. Importantly, evenwhen cycled at a higher current density of 200 mA g(-1), a stable reversible capacity of 899 mA h g(-1) and a remarkable cycling stability could also be achieved after 600 cycles. These results indicate the potential suitability of such mesoporous nanoparticles on graphene nanostructures for high-rate and long cycle life anode materials.
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