Preparation of highly dispersed supported Ni-Based catalysts and their catalytic performance in low temperature for CO methanation

作     者：Yongbin Yao Jing Xu Xuhong Guo Jiangwei Li Qixia Zhang Jiangbing Li Chao Wang Mengjuan Zhang Bin Dai Feng Yu Sebastien Thomas Anne-Cecile Roger 

作者机构：Key Laboratory for Green Processing of Chemical Engineering of Xinjiang BingtuanSchool of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003PR China State Key Laboratory of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237PR China Key Laboratory on Resources Chemicals and Materials of Ministry of EducationShenyang University of Chemical TechnologyShenyang 110142PR China Graduate School of Science and TechnologyHirosaki University3 Bunkyo-choHirosakiAomori 036-8560Japan Institut de Chimie et Procedes pour l’Energiel’Environnement et la Sante(ICPEESUMR CNRS 7515)25 rue Becquerel67087 StrasbourgFrance 

出 版 物：《Carbon Resources Conversion》 (碳资源转化（英文）)

年 卷 期：2020年第3卷第1期

页      面：164-172页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：National Natural Science Foundation of China(No.22068034) International Science and Technology Cooperation Project of Shihezi University(No.GJHZ201804) International Science and Technology Cooperation Project of Bingtuan(No.2018BC002) Science and Technology Innovation Talents Program of Bingtuan(No.2019CB025) 

主　　题：Complexed-impregnation Layered double oxide CO methanation Low temperature catalyst 

摘      要：The use of non-noble nickel-based catalysts for low temperature CO methanation has been a challenge in recent ***,MgAl layered double oxides sample with high dispersion synthesized by a facile N-(2-Hydroxyethyl)ethylenediaminetriacetic acid assisted wetness impregnation approach,demonstrates much superior catalytic activity and exceptional stability for CO methanation in comparison with the classical Ni/MgAl-LDO catalyst prepared by the ordinary wetness impregnation *** results showed that N-(2-Hydroxyethyl)ethylenediaminetriacetic acid played a positive role in the dispersion of Ni,as well as Ni-support ***-dispersed Ni particles with a size of about 5 nm were formed in the presence of N-(2-Hydroxyethyl)ethylenediaminetriacetic *** to the Ni/MgAl-LDO prepared by conventional impregnation method,the NH-Ni/MgAl-LDO exhibited superior catalytic performance,especially excellent thermal *** NH-Ni30/MgAl-LDO catalyst was found to keep a 70%CO conversion even at 160◦C which demonstrates its good low temperature *** the in situ FTIR observations,this good performance at low temperatures may be linked to the delocalization of electrons around CO caused by surface hydroxyl groups.