A Catalytic Copper/Cobalt Oxide Interface for Efficient Hydrogen Generation

作     者：Wenjing Xu Sheli Zhang Ruofan Shen Zhikun Peng Baozhong Liu Jun Li Zhanying Zhang Baojun Li Wenjing Xu;Sheli Zhang;Ruofan Shen;Zhikun Peng;Baozhong Liu;Jun Li;Zhanying Zhang;Baojun Li

作者机构：School of ScienceJiaozuo Engineering Technology Research Center of Separation and Adsorption MaterialsJiaozuo Teachers CollegeJiaozuo Henan 454000China Research Center of Green CatalysisCollege of ChemistryZhengzhou UniversityZhengzhou 450001China School of Materials Science and EngineeringHenan Polytechnic UniversityJiaozuo 454000China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2023年第6卷第2期

页      面：1-7页

核心收录：

学科分类：07[理学] 081705[工学-工业催化] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.21401168) Foundation of High Level Research Projects of Jiaozuo Teachers College(No.GPY2021-01). 

主　　题：ammonia borane metal metal oxide metal-organic framework synergistic effect 

摘      要：Metal nanoparticles and metal oxides promisingly provide different catalytic active sites at their interfaces.Constructing high-density interfaces is essential to maximize synergies.Herein,a Cu-Co_(3)O_(4) nanoparticles interfacial structure produced via pyrolysis and moderate oxidation from metal-organic frameworks has been designed to boost the intrinsic activity.The Cu-Co_(3)O_(4) nanoparticles composites exhibit a turnover frequency of 57.5 min−1 for ammonia borane hydrolysis,far higher than those of monometallic Cu and Co_(3)O_(4) nanoparticles,showing the synergistic effect of Cu and Co_(3)O_(4) nanoparticles at their interface.Density functional theory calculations and in situ Raman spectroscopy reveal the catalytic mechanism of dual active sites,in which Co_(3)O_(4) nanoparticles at Cu-Co_(3)O_(4) interface efficiently bind and activate water molecules and Cu nanoparticles easily activate NH3BH3 molecules.This study opens up a new pathway for achieving high-efficiency noble metal-free catalysts for hydrogen generation and other heterogeneous catalysis.