期刊
SCIENCE BULLETIN
卷 64, 期 3, 页码 158-165出版社
ELSEVIER
DOI: 10.1016/j.scib.2019.01.006
关键词
Co9S8 nanowire; NiCo LDH; Hydrogen evolution reaction; Oxygen evolution reaction; Water splitting
资金
- National Natural Science Foundation of China [21571012]
Water electrolysis is considered to be an effective way to fabricate hydrogen, and it is desirable to find the highly efficient, inexpensive and good durability bifunctional electrocatalysts for overall water splitting. In this paper, we synthesis a unique structured catalyst that was composed by Co9S8 nanowires and nickel cobalt layered double hydroxide (NiCo-LDH) nanosheets. The ultrathin nanosheets decorated on the Co9S8 nanoarrays offer large specific surface area, numerous active edge sites and excellent electrical conductivity for fast electron transfer. Benefiting from this heterogeneous structure, the catalyst presents excellent catalytic performance in alkaline media. It requires 168 mV to reach current density of 10 mA/cm(2) for HER and 278 mV to reach current density of 30 mA/cm(2) for OER. When used as electrode in a homemade two-electrode system, it only needs t a voltage of 1.63 V to achieve current densities of 10 mA/cm(2), which proves Co9S8@NiCo LDH/NF as a superior bifunctional catalyst for water splitting. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
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