Efficient bifunctional catalysts for overall water splitting: porous Fe-Mo oxide hybrid nanorods

被引:36
作者
Chen, Wei [1 ]
Qian, Guangfu [1 ]
Xu, Qinglian [1 ]
Yu, Chen [1 ]
Yu, Mengya [1 ]
Xia, Yijiang [2 ]
Yin, Shibin [1 ]
机构
[1] Guangxi Univ, State Key Lab Proc Nonferrous Met & Featured Mat, Guangxi Key Lab Petrochem Resource Proc & Proc In, Sch Phys Sci & Nchnol,Coll Chem & Chem Engn, Nanning 530004, Peoples R China
[2] Reibu Gulf Univ, Sch Mech & Ship Engn, Qinzhou 535011, Peoples R China
基金
中国国家自然科学基金;
关键词
HYDROGEN EVOLUTION REACTION; METAL-ORGANIC FRAMEWORKS; NICKEL FOAM; ACTIVE ELECTROCATALYST; NI; ARRAY; ELECTRODEPOSITION; CONVERSION; NANOSHEETS;
D O I
10.1039/d0nr00446d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Efficient and inexpensive bifunctional catalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) are essential for water splitting. Herein, we successfully prepare porous Fe-Mo oxide hybrid nanorods through a hydrothermal method followed by annealing at high temperature. They exhibit excellent catalytic activity for OER and HER in alkaline media, and produce a current density of 10 mA cm(-2) at overpotentials of 200 and 66 mV. Besides, they work as bifunctional electrode materials for overall water splitting, achieving a current density of 10 mA cm(-2) at a voltage of 1.52 V, and maintaining a current density of 60 mA cm(-2) for 60 h. The unique morphology with self-supported structure can expose more active sites and facilitate charge transfer, and is not easy to peel off, thus it improves the catalytic activity and stability. This work therefore provides a valuable route for designing and fabricating inexpensive and high-performance catalytic materials for overall water splitting.
引用
收藏
页码:7116 / 7123
页数:8
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