%0 Journal Article
%T Redox property of Co3O4/CeO2 and the effect of reaction conditions on its performance in CO oxidation<br>Co3O4/CeO2的氧化还原性能及反应条件对其CO氧化活性的影响
%A SHAO Jian-jun
%A ZHU Xi
%A SHEN Wen-jie
%A <br>邵建军
%A 朱锡
%A 申文杰
%J 燃料化学学报
%D 2012
%I 
%X Co3O4/CeO2 catalysts were prepared by co-precipitation-oxidation method and characterized by using X-ray diffraction(XRD),surface area(SBET) measurement and temperature-programmed reduction(TPR).The effect of cobalt content in Co3O4/CeO2 on its physical properties and catalytic performance in CO oxidation was investigated under both the humid and dry conditions.The results indicated that the Co3O4/CeO2 composite with a Co/Ce atomic ratio of 9(calcined at 723 K) exhibits much smaller particle size and higher surface area than pure Co3O4;the addition of cerium to Co3O4 is beneficial to obtain Co3O4 with small particle size.The average particle size and BET surface area of Co3O4 in the Co3O4/CeO2 composite(Co/Ce atomic ratio = 9) calcined at 538 K are 7.2 nm and 167.6 m2/g,respectively.Accordingly,the Co3O4/CeO2 composite exhibits excellent redox property.
%K Co3O4
%K CeO2
%K carbon monoxide
%K low temperature
%K oxidation<br>氧化钴
%K 氧化铈
%K 一氧化碳
%K 低温
%K 氧化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=C6AB115B41BD2F1616ECDB095B69B8ED&aid=EC09C1218AC1072BA831B9092AF0AA1B&yid=99E9153A83D4CB11&vid=1371F55DA51B6E64&iid=CA4FD0336C81A37A&sid=80A07035DF96B0C4&eid=9C65ADEB5990B252&journal_id=0253-2409&journal_name=燃料化学学报&referenced_num=1&reference_num=24