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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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负载型钙钛矿labxmn1-xo3/堇青石(b=co,fe,ni,cu)催化燃烧苯的性能
DOI: 10.3969/j.issn.1671-7627.2014.04.001, PP. 1-6
Keywords: laco0.5mn0.5o3钙钛矿,催化燃烧,苯,ceo2
Abstract:
采用柠檬酸盐法制备了labxmn1-xo3/堇青石(b=co,fe,ni,cu)催化燃烧催化剂,并用h2-程序升温还原(h2-tpr)、x线衍射仪(xrd)、扫描电子显微镜(sem)等对其进行了表征,并考察其催化燃烧苯的活性和抗水性能。结果表明:laco0.5mn0.5o3/堇青石催化剂能形成完善的钙钛矿晶相,表现出最佳的催化氧化苯的性能;载体经ceo2涂覆改性,起到协同催化和稳定剂的作用,从而有利于催化剂催化燃烧活性的提高和热稳定性能的发挥,在水蒸气存在下,催化剂亦可表现出良好的催化氧化活性。
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