期刊
ACS ENERGY LETTERS
卷 3, 期 7, 页码 1655-1661出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.8b00809
关键词
-
类别
资金
- Science Fund for Creative Research Groups of the National Natural Science Foundation of China [51621003]
- Natural Science Foundation of China [21576006, 21606006]
- Beijing Natural Science Foundation [2174064]
The oxygen evolution reaction (OER) in water splitting plays a critical role in some clean energy production systems. Transition-metal oxides as one of the most common OER electrocatalysts have been widely explored; however, their activity is limited by low electrical conductivity, slow mass transfer, and inadequate active sites. Herein, we develop a feasible strategy in which layered two-dimensional metal-organic frameworks (2D MOFs) act as templates to construct metal oxide/carbon (MOx/C, M = Co, Ni, and Cu) nanosheet arrays for the OER. Because of improved conductivity and more exposed active sites afforded by their 2D structures with rich hierarchical pores and the incorporation with porous carbon, these 2D MOF-derived MOx/C arrays present high electrocatalytic activities and good durability. Particularly, Co3O4/CBDc, NiO/CBDc, and Cu2O/S-C-TDC exhibit low overpotentials of 208, 285, and 313 mV at the current density of 10 mA cm(-2), respectively, outperforming all previously reported corresponding metal oxide-based catalysts.
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