Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Fabrication of LaCoO_3 Catalyst and Its Catalytic Activities for Methane Catalytic Combustion

XIAO Xiu-zhen;LU Guan-zhong;MAO Dong-sen;Research Institute of Applied Catalysis,School of Chemical and Environmental Engineering,Shanghai Institute of Technology;Research Institute of Industrial Catalysis,School of Chemistry and Molecular Engineering,East China University of Science and Technology;  
By using three kinds of organic complex agents(gluocose,citrate acid,tartaric acid),perovskite LaCoO3catalysts had been synthesized by sol-gel combustion method,and calcination at 600 ℃for 2h.Structures of the catalysts were characterized by means of XRD,SEM,TPR,TPD,BET and the particle size analyzer.Catalytic activities of the catalysts for methane catalytic combustion were investigated.The results showed that among these three kinds of catalysts,catalyst prepared by using glucose as complex agent was the single perovskite LaCoO3 with small particle size and well particle size distribution,which presented good catalytic activity in methane combustion.And major phase of catalyst by using tartaric acid as complex agent was perovskite LaCoO3 with other phases(La2O3,Co3O4),which also displayed goodcatalytic activity in methane catalytic combustion.As-prepared catalyst by using citric acid as complex agent with the worst distribution showed the lowest activity in methane catalytic combustion,and was composed of perovskite LaCoO3as major phase and La2O3and Co3O4as minor phase.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved