%0 Journal Article
%T effectsofoxidationpretreatmenttemperatureonkovarusedasco<sub>2</sub>reformingcatalyst
%A sharon
%A rose
%A de
%A la
%A rama
%A hiroshi
%A yamada
%A tomohiko
%A tagawa
%J 燃料化学学报
%P 573-581
%D 2014
%X ？theeffectofoxidationpretreatmenttemperature(500~1000℃)onthecatalyticactivityofkovarappliedonhydrocarbonco2reformingwasexamined.catalyticperformanceevaluationusingtetradecaneat800℃with70μmol/sco2revealed700and1000℃asthebestpre-oxidationtemperatureinproducingcoandh2,respectively.xrdandsem-edxanalysesshowedthataseparatemetaloxidelayercomposedofironoxide(fe2o3andf3o4),nickel,cobalt,andpossiblytheirrespectiveoxidesstartedtoformwhenoxidationwasconductedat700℃orhigher.thepresenceofironenhancedthestabilityofnickelinthestructurewhilethecompactstructureoffe3o4resultedintotheformationofathickandrigidmetaloxidelayeronthesurfaceofthekovartube.thestrongphysicalbondbetweenthemetaloxidelayerandkovartubeprovidedthecatalystgoodmechanicalstrengthandconsequentlygoodcatalyticactivity.
%K co2reformingcatalyst
%K kovar
%K oxidationpretreatment
%U http://rlhxxb.sxicc.ac.cn/CN/abstract/abstract18414.shtml