Atomically Dispersed Copper-Platinum Dual Sites Alloyed with Palladium Nanorings Catalyze the Hydrogen Evolution Reaction

Tingting Chao; Xuan Luo; Wenxing Chen; Bin Jiang; Jingjie Ge; Yue Lin; Geng Wu; Xiaoqian Wang; Yanmin Hu; Zhongbin Zhuang; Yuen Wu; Xun Hong; Yadong Li

doi:10.1002/anie.201709803

Atomically Dispersed Copper-Platinum Dual Sites Alloyed with Palladium Nanorings Catalyze the Hydrogen Evolution Reaction

Angew Chem Int Ed Engl. 2017 Dec 11;56(50):16047-16051. doi: 10.1002/anie.201709803. Epub 2017 Nov 15.

Authors

Tingting Chao¹, Xuan Luo², Wenxing Chen³, Bin Jiang², Jingjie Ge¹, Yue Lin¹, Geng Wu¹, Xiaoqian Wang¹, Yanmin Hu¹, Zhongbin Zhuang⁴, Yuen Wu¹, Xun Hong¹, Yadong Li³

Affiliations

¹ Center of Advanced Nanocatalysis (CAN) and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, China.
² Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China.
³ Department of Chemistry, Tsinghua University, Beijing, 100084, China.
⁴ State Key Lab of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.

PMID: 29063649
DOI: 10.1002/anie.201709803

Abstract

Designing highly active catalysts at an atomic scale is required to drive the hydrogen evolution reaction (HER). Copper-platinum (Cu-Pt) dual sites were alloyed with palladium nanorings (Pd NRs) containing 1.5 atom % Pt, using atomically dispersed Cu on ultrathin Pd NRs as seeds. The ultrafine structure of atomically dispersed Cu-Pt dual sites was confirmed with X-ray absorption fine structure (XAFS) measurements. The Pd/Cu-Pt NRs exhibit excellent HER properties in acidic solution with an overpotential of only 22.8 mV at a current density of 10 mA cm^-2 and a high mass current density of 3002 A g^-1_(Pd+Pt) at a -0.05 V potential.

Keywords: alloys; atomically dispersed; dual sites; electrocatalysis; single atoms.

Publication types

Research Support, Non-U.S. Gov't