Ni2P(O)/Fe2P(O) Interface Can Boost Oxygen Evolution Electrocatalysis

被引：199

作者：

Liu, Peng Fei ^{[1
]}

Li, Xu ^{[1
]}

Yang, Shuang ^{[1
]}

Zu, Meng Yang ^{[1
]}

Liu, Porun ^{[2
]}

Zhang, Bo ^{[3
]}

Zheng, Li Rong ^{[4
]}

Zhao, Huijun ^{[2
]}

Yang, Hua Gui ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

[2] Griffith Univ, Ctr Clean Environm & Energy, Gold Coast Campus, Southport, Qld 4222, Australia

[3] Fudan Univ, State Key Lab Mol Engn Polymers, Dept Macromol Sci, Shanghai 200438, Peoples R China

[4] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

ACS ENERGY LETTERS | 2017年 / 2卷 / 10期

基金：

中国国家自然科学基金;

关键词：

LAYERED DOUBLE HYDROXIDE; ELECTROCHEMICAL WATER OXIDATION; EVOLVING CATALYST; EFFICIENT; HYDROGEN; NANOSHEETS; OXIDE; NIFE; IDENTIFICATION; PHOSPHIDE;

D O I：

10.1021/acsenergylett.7b00638

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：

Oxygen evolution reaction (OER) plays a paramount role in renewable energy technologies. However, the slow kinetics of OER seriously limits the overall performance and commercialization. Here, we rationally design a metallic Ni2P/Fe2P interface, which can be in situ oxidized to a Ni2P(O)/Fe2P(O) interface to enhance OER efficiency, with active doped oxyhydroxides and phosphates on the surface and conductive phosphide in the bulk. The resulting catalysts require a low overpotential of 179 mV to achieve a current density of 10 mA/cm(2) (without iR compensation) and can continuously drive OER for 120 h without any obvious degradation, which rivals most reported OER catalysts. These results suggest that we are able to design multicomponent metallic precatalysts to construct most active surface layers and conductive bulks, further boosting OER performance for real-world electrolysis utilization.

引用

页码：2257 / 2263

页数：7

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