Hybrids of PtRu Nanoclusters and Black Phosphorus Nanosheets for Highly Efficient Alkaline Hydrogen Evolution Reaction

被引：101

作者：

Li, Yejun ^{[1
,2
]}

Pei, Wei ^{[3
]}

He, Jieting ^{[2
]}

Liu, Kang ^{[1
]}

Qi, Weihong ^{[2
,4
]}

Gao, Xiaohui ^{[1
]}

Zhou, Si ^{[3
]}

Xie, Haipeng ^{[1
]}

Yin, Kai ^{[1
]}

Gao, Yongli ^{[1
]}

He, Jun ^{[1
]}

Zhao, Jijun ^{[3
]}

Hu, Junhua ^{[5
]}

Chan, Ting-Shan ^{[6
]}

Li, Zhou ^{[2
]}

Zhang, Gufei ^{[7
,8
]}

Liu, Min ^{[1
]}

机构：

[1] Cent S Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China

[2] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

[3] Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

[4] Northwestern Polytech Univ, Ctr Adv Lubricat & Seal Mat, State Key Lab Solidificat Proc, Xian 710072, Shanxi, Peoples R China

[5] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450002, Henan, Peoples R China

[6] Natl Synchrotron Radiat Res Ctr, 101,Hsin Ann Rd,Hsinchu Sci Pk, Hsinchu 30076, Taiwan

[7] Univ Southern Denmark, Mads Clausen Inst, NanoSYD, Alsion 2, DK-6400 Sonderborg, Denmark

[8] Univ Southern Denmark, DIAS Danish Inst Adv Study, Alsion 2, DK-6400 Sonderborg, Denmark

来源：

ACS CATALYSIS | 2019年 / 9卷 / 12期

基金：

中国国家自然科学基金;

关键词：

water splitting; electronic interaction; electrocatalysts; noble metal nanoclusters; two-dimensional materials; ELECTRONIC-STRUCTURE; ENERGY; WATER; HETEROSTRUCTURE; ELECTROCATALYST; NANOCRYSTALS; SURFACES; TRENDS;

D O I：

10.1021/acscatal.9b03506

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：

Water electrolysis shows great promise for the low-cost mass production of high-purity hydrogen. The relatively high dissociation energy of water, however, often results in rather sluggish kinetics of the hydrogen evolution reaction (HER) in alkaline conditions, even for the case of state-of-the-art Pt-based electrocatalysts. Here, we show the high efficiency of the hybrids of PtRu nanoclusters (NCs) and black phosphorus (BP) nanosheets in HER. Our PtRu NCs/BP electrocatalysts demonstrate a HER activity of 88.5 mA cm(-2) at -70 mV in 1 M KOH, which is higher than that of commercial Pt/C by 1 order of magnitude. The observed extraordinarily high HER activity of the PtRu NCs/BP hybrids is interpreted in the framework of density functional theory. Theoretical modeling indicates that the electronic interaction between BP and PtRu NCs speeds up the dissociation of water and optimizes the adsorption strength for H* species, giving rise to the remarkably high HER activity of the PtRu NCs/BP hybrids.

引用

页码：10870 / 10875

页数：11

共 39 条

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