原子级Pt团簇修饰的Ct相氢氧化镍纳米线作为高效析氢反应催化剂

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Bibliographic Details
Published in中国科学：材料科学（英文版） Vol. 60; no. 11; pp. 1121 - 1128
Main Author 杨红超;汪昌红;胡峰;张叶俊;卢欢;王强斌
Format Journal Article
LanguageEnglish
Published 2017
Subjects
Ni（OH）2
修饰
催化剂
原子级
团簇
析氢反应
氢氧化钾溶液
镍纳米线
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Bibliography:atomic-scale, platinum, Ni（OH）2, clusters, hydrogenevolution reaction
10-1236/TB
Hongchao Yang1,2, Changhong Wang1,2, Feng Hu2, Yejun Zhang2, Huan Lu2 and Qiangbin Wang1,2,3.
The synthesis of atomic-scale metal catalysts is a promising but very challenging project. In this work, we successfully fabricated a hybrid catalyst of PL/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 Ptc/Ni（OH）2 catalyst exhibits highly efficient hydrogen evolution reaction （HER） performance under basic conditions. In 0.1moll-1 KOH, the Ptc/Ni（OH）2 has an onset overpotential of -0 mV vs. RHE, and a significantly low overpotential of 32 mV at a current density of 10mAcm-2, lower than that of the com- mercial 20% Pt/C （58 mV）. The mass current density data illustrated that the PL/Ni（OH）2 reached a high current den- sity of 6.34Amg^-1i at an overpotential of 50 mV, which was approximately 28 times higher than that of the commercial Pt/C （0.223Amg^-1i） at the same overpotential, proving the high-efficiency electrocatalytic activity of the as-obtained Ptc/Ni（OH）2 for HER under alkaline conditions.
ISSN:2095-8226
2199-4501