| Au core-PtAu alloy shell nanowires for formic acid electrolysis |
| |
| 作者姓名： | Qi Xue Xin-Yu Bai Yue Zhao Ya-Nan Li Tian-Jiao Wang Hui-Ying Sun Fu-Min Li Pei Chen Pujun Jin Shi-Bin Yin Yu Chen |
| |
| 作者单位： | Key Laboratory of Macromolecular Science of Shaanxi Province;MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials |
| |
| 基金项目： | supported by the Natural Science Foundation of Shaanxi Province(2020JZ-23);the Fundamental Research Funds for the Central Universities(GK201901002,GK202101005,2020CSLZ012 and 2019TS007);the Innovation Team Project for Graduate Student at Shaanxi Normal University(TD2020048Y);the Key Research and Development Program of Shaanxi(Program No.2020SF-355);the National Training Program of Innovation and Entrepreneurship for Undergraduates(S202010718130);the Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials at Guangxi University(2021GXYSOF02);the 111 Project(B14041)。 |
| |
| 摘 要： | Inefficient electrocatalysts and high-power consumption are two thorny problems for electrochemical hydrogen(H2)production from acidic water electrolysis.Herein we report the one-pot precise synthesis of ultrafine Au core-Pt Au alloy shell nanowires(Au@PtxAu UFNWs).Among them,Au@Pt0.077 Au UFNWs exhibit the best performance for formic acid oxidation reaction(FAOR)and hydrogen evolution reaction(HER),which only require applied potentials of 0.29 V and-22.6 m V to achieve a current density of 10 m A cm-2,respectively.The corresponding formic acid electrolyzer realizes the electrochemical H2 production at a voltage of only 0.51 V with 10 m A cm-2 current density.Density functional theory(DFT)calculations reveal that the Au-riched Pt Au alloy structure can facilitates the direct oxidation pathway of FAOR and consequently elevates the FAOR activity of Au@Pt0.077 Au UFNWs.This work provides meaningful insights into the electrochemical H2 production from both the construction of advanced bifunctional electrocatalysts and the replacement of OER.
|
| 关 键 词： | Au core-PtAu alloy shell nanowires Formic acid oxidation reaction Reaction pathway Hydrogen evolution reaction Acidic water electrolysis |
| 本文献已被 维普 等数据库收录！ |
