期刊
FRONTIERS IN CHEMISTRY
卷 6, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2018.00431
关键词
porous; NiCo hydroxides; graphene; composites; supercapacitors
资金
- National Natural Science Foundation of China [11504331, 21805247]
- China Postdoctoral Science Foundation [2015M582196, 2015M582193, 2015M582194, 2018M630831]
- Outstanding Young Talent Research Fund of Zhengzhou University [1521317005, 1521317001]
Here, we report our finding in the fabrication of novel porous urchin-like Ni2/3Co1/3(CO3)(1/2)(OH)center dot 0. 11H(2)O (denoted as NC) nanomaterial composed of numerous nanoneedles through an one-step hydrothermal method, which deliveres a high specific capacity of 318C g(-1) at a current density of 1 A g(-1). Moreover, an architectural composite electrode consisting of the porous NC nanoneedles wrapped by reduced graphene oxide (rGO) nanosheets exhibits large specific capacity (431 C g(-1) at 1 A g(-1)), high rate capability and long cycling life (94% capacity retention after 5,000 cycles at 20 A g(-1)). The presence of rGO in the composite electrode greatly improves the electronic conductivity, providing efficient current collection for fast energy storage.
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