NiFe-layered double hydroxide arrays for oxygen evolution reaction in fresh water and seawater

被引：47
作者：
Dong, Guofa [1 ]
Xie, Fengyan [1 ]
Kou, Fangxia [1 ]
Chen, Tingting [1 ]
Wang, Fengyun [2 ,3 ]
Zhou, Yingwu [1 ]
Wu, Kechen [1 ]
Du, Shaowu [1 ]
Fang, Ming [4 ]
Ho, Johnny C. [5 ,6 ,7 ]
机构：
[1] Minjiang Univ, Fujian Key Lab Funct Marine Sensing Mat, Fuzhou 350108, Peoples R China
[2] Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
[3] Qingdao Univ, State Key Lab Bio Fibers & Eco Text, Qingdao 266071, Peoples R China
[4] Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China
[5] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China
[6] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Waves, Kowloon, Hong Kong 999077, Peoples R China
[7] Zhengzhou Univ, Minist Educ, Key Lab Adv Mat Proc & Mold, Zhengzhou 450002, Peoples R China
来源：
MATERIALS TODAY ENERGY | 2021年 / 22卷
基金：
中国国家自然科学基金;
关键词：
NiFe-LDH; Oxygen evolution reaction; Water splitting; Seawater electrolysis; ELECTROCATALYTIC HYDROGEN EVOLUTION; RECENT PROGRESS; CARBON CLOTH; ENERGY; ELECTROLYSIS; EFFICIENT; NANOARRAYS; NANOSHEETS; STORAGE; NICKEL;
D O I：
10.1016/j.mtener.2021.100883
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The development of active, durable, and cost-effective electrocatalysts for the oxygen evolution reaction (OER) is crucial for viable hydrogen production from water by electrolysis. In this work, we report a mild, atmospheric pressure-based chemical method for the synthesis of NiFe-containing layered double hydroxide (LDH) nanosheet arrays on a carbon fiber cloth (CC). The obtained NiFe-LDH/CC composites with various Ni/Fe ratios show good performance for OER in alkaline aqueous solutions. Among them, the sample with a Ni/Fe ratio of 6:4 exhibits the best OER activity with overpotential values of only 226 mV in water and 238 mV in seawater at a current density of 10 mA cm(-2), which are much lower than those of the benchmarking RuO2 catalyst. The catalytic activity can be maintained for at least 450 h for OER in fresh water and 165 h in seawater at a current density of 100 mA cm(-2). (C) 2021 Elsevier Ltd. All rights reserved.
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页数：8
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