%0 Journal Article
%T LaZnxFe1-xO3钙钛矿型纳米催化剂的制备、表征及其甲苯燃烧性能
%A Seyed Ali HOSSEINI
%A Mohammad Taghi SADEGHI
%A Abdolali ALEMI
%A Aligholi NIAEI
%A Dariush SALARI
%A Leila KAFI-AHMADI
%J 催化学报
%P 747-750
%D 2010
%X ？NanostructuredLaFeO3andsubstitutedLaZnxFe1-xO3(x=0.01,0.05,0.1,0.2,and0.3)perovskitesweresynthesizedbythesol-gelauto-combustionmethodandusedinthecatalyticcombustionoftoluene.TheirstructuresandsurfacepropertieswereinvestigatedbyX-raydiffraction,Fouriertransmissioninfraredspectroscopy,BETsurfacearea,andscanningelectronmicroscopy.CharacterizationdatarevealedthatthetotalinsertionofzincintoLaFeO3takesplacewhenx≤0.1.However,ZnOsegregationoccurstosomeextent,especiallyatx>0.1.Theperformanceoftheseperovskiteswasevaluatedbytoluenecombustion.Thecatalyticactivityofthecatalystsincreasedsubstantiallywithanincreaseinzincsubstitution.TheseresultscanbeattributedtothecooperativeeffectbetweenLaZnxFe1-xO3andthezincoxidephases.Therelativeconcentrationofthesephasesdeterminestheiroxygenactivationabilityandreactivity.
%K sol-gelauto-combustion
%K perovskite
%K toluene
%K catalyticoxidation
%K LaZnxFe1-xO3
%U http://www.chxb.cn/CN/abstract/abstract17354.shtml