Engineering the Electronic Structure of Submonolayer Pt on Intermetallic Pd3Pb via Charge Transfer Boosts the Hydrogen Evolution Reaction

被引：123

作者：

Yao, Yancai ^{[1
]}

Gu, Xiang-Kui ^{[4
]}

He, Dongsheng ^{[5
]}

Li, Zhijun ^{[6
]}

Liu, Wei ^{[7
]}

Xu, Qian ^{[7
]}

Yao, Tao ^{[7
]}

Lin, Yue ^{[1
]}

Wang, Hui-Juan ^{[1
]}

Zhao, Changming ^{[1
]}

Wang, Xiaoqian ^{[1
]}

Yin, Peiqun ^{[1
]}

Li, Hai ^{[8
,9
]}

Hong, Xun ^{[1
]}

Wei, Shiqiang ^{[7
]}

Li, Wei-Xue ^{[1
]}

Li, Yadong ^{[1
,2
,3
]}

Wu, Yuen ^{[1
]}

机构：

[1] Univ Sci & Technol China, iChEM Collaborat Innovat Ctr Chem Energy Mat, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Anhui, Peoples R China

[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Collaborat Innovat Ctr Nanomat Sci & Engn, Beijing 100084, Peoples R China

[4] Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Hubei, Peoples R China

[5] Southern Univ Sci & Technol SUSTech, MCPC, Shenzhen 518055, Guangdong, Peoples R China

[6] Northeast Petr Univ, Coll Chem & Chem Engn, Prov Key Lab Oil & Gas Chem Technol, Daqing 163318, Peoples R China

[7] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China

[8] Nanjing Univ Technol, KLOFE, Nanjing 211816, Jiangsu, Peoples R China

[9] Nanjing Univ Technol, IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2019年 / 141卷 / 51期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

SINGLE-CRYSTAL SURFACES; ELECTROCHEMISTRY; CATALYSTS;

D O I：

10.1021/jacs.9b09391

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The efficient electrochemical hydrogen evolution reaction (HER) plays a key role in accelerating sustainable H-2 production from water electrolysis, but its large-scale applications are hindered by the high cost of the state-of-the-art Pt catalyst. In this work, submonolayer Pt was controllably deposited on an intermetallic Pd3Pb nanoplate (AL-Pt/Pd3Pb). The atomic efficiency and electronic structure of the active surface Pt layer were largely optimized, greatly enhancing the acidic HER. AL-Pt/Pd3Pb exhibits an outstanding HER activity with an overpotential of only 13.8 mV at 10 mA/cm(2) and a high mass activity of 7834 A/g(Pd+Pt) at -0.05 V, both largely surpassing those of commercial Pt/C (30 mV, 1486 A/g(Pt)). In addition, AL-Pt/Pd3Pb shows excellent stability and robustness. Theoretical calculations show that the improved activity is mainly derived from the charge transfer from Pd3Pb to Pt, resulting in a strong electrostatic interaction that can stabilize the transition state and lower the barrier.

引用

页码：19964 / 19968

页数：5

共 31 条

[1] Electrocatalytic activity of ordered intermetallic phases for fuel cell applications [J].