Atomic-scale Pt clusters decorated on porous α-Ni(OH)2 nanowires as highly efficient electrocatalyst for hydrogen evolution reaction

被引：44

作者：

Yang, Hongchao ^{[1
,2
,3
]}

Wang, Changhong ^{[1
,2
,3
]}

Hu, Feng ^{[2
,3
]}

Zhang, Yejun ^{[2
,3
]}

Lu, Huan ^{[2
,3
]}

Wang, Qiangbin ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Sch Nano Technol & Nano Bion, Suzhou 215123, Peoples R China

[2] Chinese Acad Sci, Key Lab Nanobio Interface, Div Nanobiomed, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China

[3] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, I Lab, Suzhou 215123, Peoples R China

[4] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

来源：

SCIENCE CHINA-MATERIALS | 2017年 / 60卷 / 11期

基金：

中国国家自然科学基金;

关键词：

atomic-scale; platinum; Ni(OH)(2); clusters; hydrogen evolution reaction; ALPHA-NICKEL-HYDROXIDE; WATER ELECTROLYSIS; DOPED CARBON; CATALYSTS; COBALT; ELECTRODES; OXIDATION;

D O I：

10.1007/s40843-017-9035-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis of atomic-scale metal catalysts is a promising but very challenging project. In this work, we successfully fabricated a hybrid catalyst of Pt-c/Ni(OH)(2) with atomic-scale Pt clusters uniformly decorated on porous Ni(OH)(2) nanowires (NWs) via a facile room-temperature synthesis strategy. The as-obtained Pt-c/Ni(OH)(2) catalyst exhibits highly efficient hydrogen evolution reaction (HER) performance under basic conditions. In 0.1 mol L-1 KOH, the Pt-c/Ni(OH)(2) has an onset overpotential of similar to 0 mV vs. RHE, and a significantly low overpotential of 32 mV at a current density of 10 mA cm(-2), lower than that of the commercial 20% Pt/C (58 mV). The mass current density data illustrated that the Pt-c/Ni(OH)(2) reached a high current density of 6.34 Amg(Pt)(-1) at an overpotential of 50 mV, which was approximately 28 times higher than that of the commercial Pt/C (0.223 Amg(Pt)(-1) at the same overpotential, proving the high-efficiency electrocatalytic activity of the as-obtained Pt-c/Ni(OH)(2) for HER under alkaline conditions.

引用

页码：1121 / 1128

页数：8

共 26 条

[1] Molecular Catalysts for Water Oxidation [J].