Stabilizing Co nanoparticles for CO_(2) hydrogenation by lattice-matching confinement in ZnO interlayers  

作　　者：Wangxing Zhang Yu Luo Sónia A.C.Carabineiro Shuai Lyu Wenwen Xiao Zhiyan He Zhu’an Zheng Junjiang Zhu 

机构地区：[1]Hubei Key Laboratory of Biomass Fibers and Eco-dyeing&Finishing,College of Chemistry and Chemical Engineering,Wuhan Textile University,Wuhan 430200,China [2]LAQV-REQUIMTE,Department of Chemistry,NOVA School of Science and Technology,Universidade NOVA de Lisboa,2829-516 Caparica,Portugal [3]State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China [4]School of Automotive Engineering,Yancheng Institute of Technology,Yancheng 224000,China

出　　处：《Nano Research》2025年第4期98-105,共8页纳米研究(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.42277485,21976141,and 22102220);the Department of Science and Technology of Hubei Province(No.2021CFA034);the Department of Education of Hubei Province(No.T2020011);the State Key Laboratory of Pulp and Paper Engineering(No.202301);Fundação para a Ciência e Tecnologia and Ministério da Ciência,Tecnologia e Ensino Superior,Portugal(DOIs:10.54499/LA/P/0008/2020,10.54499/UIDP/50006/2020,10.54499/UIDB/50006/2020,and 10.54499/CEECINST/00102/2018/CP1567/CT0026).

摘　　要：Confining active nanoparticles within specific nanoscale spaces is a promising strategy to improve the catalytic activity,selectivity and stability of catalysts.In this study,we present a lattice-matching approach to confine Co particles within ZnO layers(ZnO/Co/ZnO)for CO_(2) hydrogenation,a critical and challenging reaction in the field of CO_(2) utilization and energy production.XRD patterns reveal that the lattice mismatch between ZnO and hexagonal wurtzite CoO(w-CoO)is only 0.18%,facilitating the epitaxial growth of w-CoO on the ZnO surface,or vice versa.This minimal mismatch enables the successful confinement of w-CoO within the ZnO interlayers.This advanced methodology can also be adapted to diverse ZnO morphologies,allowing the optimization of the confined catalyst mol_(CO_(2))·g_(Co)^(-1)·s^(-1) microstructure.Significantly,when Co particles are confined within the interlayer of ZnO,they exhibit excellent catalytic activity,achieving a rate of 15.8μ for CO_(2) hydrogenation reaction.Moreover,no appreciable deactivation was observed even after 700 h of continuous operation.These results introduce a novel approach for the development of confined catalysts with enhanced activity and long-term stability.

关 键 词：lattice-matching epitaxial growth confined catalyst CO_(2)hydrogenation catalytic stability 

分 类 号：O643.3[理学—物理化学] O643.36[理学—化学]