MXene supported PtCo bimetallic catalyst for hydrogen evolution in acidic conditions

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外文摘要：Using the electrochemical technology to split water molecules to produce hydrogen is the key to obtain green hydrogen for solving the energy crisis.The large-scale application of hydrogen evolution reaction(HER)in water dissociation requires a highly active catalyst.In this paper,the highly dispersed PtCo bimetallic nanoparticles loading on MXene(PtCo/MXene)were prepared by using a step-to-step reduction strategy.The mentioned PtCo/MXene catalyst exhibits a high current density of-100 mA/cm2 in an acidic medium with just a 152 mV overpotential.In addition,the PtCo/MXene catalyst also displays a superior stability.Computational analysis and experimental testing demonstrate that the electronic interaction between Pt and Co can effectively modify the electronic structure of the active site,thereby enhancing the inherent catalytic performance of the material.More importantly,MXene two-dimensional nanosheets can expose more active sites because of their large specific surface area.Furthermore,MXene substrate with excellent electrical conductivity and harmonious interfaces between PtCo and MXene enhance charge transfer efficiency and lower the reaction activation energy.

外文关键词：

MXenePtCo bimetallichydrogen evolution reaction(HER)

作者：

Guangxun CHEN、Jian-hua ZHANG、Kai-Ling ZHOU、Yang YANG、Haoxiang MA、Yuhong JIN、Jingbin LIU、Hao WANG

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作者单位：

Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China

Institute of Deep-Sea Science and Engineering,Chinese Academy of Sciences,Sanya 572000,China

基金：

Urban Carbon Neutral Science Innovation Foundation of Beijing University of TechnologyUrban Carbon Neutral Science Innovation Foundation of Beijing University of TechnologyChina Postdoctoral Science FoundationYoung Elite Scientists Sponsorship Program by BASTBeijing Postdoctoral Research Foundation

项目编号：

0480005141226640480005141226562022M710273BYESS20233412022-ZZ-043

出版年：

2024

DOI：

10.1007/s11708-024-0925-9

能源前沿

高等教育出版社

能源前沿

CSTPCDEI

影响因子：0.2

ISSN：2095-1701

年,卷(期)：2024.18(3)