海胆状CoTe-CoP异质结构催化剂在全pH范围内高效析氢

扫码查看

原文链接

NETL
NSTL
万方数据

中文摘要：研发长效稳定、pH适应性强的析氢反应(HER)催化剂对实现大规模制氢具有重要意义.界面工程是研发高效HER催化剂的有效策略之一.本文成功构建了海胆状异质结构催化剂CoTe-CoP/NF.CoTe和CoP的协同作用不仅优化了电子结构、暴露了更多的活性位点,而且有效地提高了催化剂的亲水性和疏气性.密度泛函理论计算表明:CoTe与CoP之间的相互作用有效地降低了水的解离能垒,同时增强了对H*的吸附.这些结果使得CoTe-CoP/NF在整个pH范围内具有优异的HER性能和催化稳定性.在酸性、碱性和中性介质中,CoTe-CoP/NF电极驱动10 mA cm-2的电流密度仅需51、53和75 mV的过电位.总之,本工作为在全pH范围内构建高性能HER催化剂提供了一种界面工程新策略.

外文标题：Sea urchin-like CoTe-CoP heterostructure catalyst for efficient hydrogen evolution in all-pH range

外文摘要：The development of robust and pH-adaptable hydrogen evolution reaction(HER)catalysts is of great sig-nificance to achieve a mass-scale hydrogen production.The interface engineering is one of the most effective strategies due to its unique properties.Herein,the sea urchin-like hetero-structure catalyst CoTe-CoP/NF is constructed successfully.The synergy of CoTe and CoP not only optimizes the elec-tronic structure and exposes more active sites,but also effec-tively improves the hydrophilicity and aerophobicity of the catalyst.Meanwhile,density functional theory calculations further unveil that the interaction between CoTe and CoP efficiently reduces the dissociation energy barrier of water,and simultaneously enhances H*adsorption.All these results endow CoTe-CoP/NF excellent HER performance and cataly-tic stability at full pH range.The CoTe-CoP/NF electrode only needs 51,53,and 75 mV overpotentials at 10 mA cm-2 for HER in acidic,alkaline,and neutral media,respectively.In short,this work provides an interface engineering strategy to construct high-performance HER catalysts in all-pH range.

外文关键词：

heterostructurehydrogen evolution reactionsin-terface engineeringall-pH rangesynergy effect

作者：

朱少柯、邢明辉、路站宽、乔泽龙、王世涛、赵青蓝、邵敏华、甑崇礼、曹达鹏

展开 >

作者单位：

State Key Laboratory of Organic-Inorganic Composites,Beijing University of Chemical Technology,Beijing 100029,China

Department of Chemical and Biological Engineering,Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong 999077,China

Energy Institute,and Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong 999077,China

Qingdao International Academician Park Research Institute,Qingdao 266000,China

School of Chemical Engineering,The University of New South Wales,Sydney NSW 2052,Australia

展开 >

关键词：

heterostructure hydrogen evolution reactions in-terface engineering all-pH range synergy effect

基金：

Outstanding Talent Fund from Beijing University of Chemical Technology

项目编号：

出版年：

2024

DOI：

10.1007/s40843-024-2820-0

中国科学:材料科学(英文)

CSTPCD

ISSN：

年,卷(期)：2024.67(6)