Cr-Ag/γ-Al_2O_3催化剂对CO的氧化性能研究  

Oxidation Activities of CO over γ Al 2O 3 Supported Cr Ag Catalysts

作　　者：吴红丽[1] 朱波[2] 郑小明[2] 李少华 牟霞虹 

机构地区：[1]杭州大学中心实验室 [2]杭州大学催化研究所 [3]温州市环境监测站 [4]嘉兴市人防办公室

出　　处：《科技通报》1997年第2期103-106,共4页Bulletin of Science and Technology

摘　　要：采用浸渍法制备了一系列γ－Ａｌ２Ｏ３负载的Ｃｒ－Ａｇ双金属氧化物催化剂，并考察了对ＣＯ的氧化活性．结果表明，由Ｃｒ（ＮＯ３）３、ＣｒＯ３、Ｃｒ２（Ｃ２Ｏ４）３作为Ｃｒ源制备的单组分Ｃｒ－／γ－Ａｌ２Ｏ３催化剂对ＣＯ的氧化活性基本相同，且均较差；但添加少量Ａｇ（＜２ｗｔ％）却能明显提高Ｃｒ／γ－Ａｌ２Ｏ３催化剂对ＣＯ的氧化活性。A series of the γ Al 2O 3 supported Cr Ag catalysts were prepared by impregnation method. The activities of these catalysts for CO oxidation were determined in a gas flow system. As a result,the oxidation activities of Cr/γ Al 2O 3 catalysts preparing with Cr (NO 3) 3,CrO 3 and Cr 2(C 2O 4) 3 were very close. The activities of catalysts were obviously enhanced with the addition of Ag (<2wt%). The activities of Cr Ag/ γ Al 2O 3 catalysts were affected by the variation of preparative method.

关 键 词：催化剂 一氧化碳 氧化性能 金属氧化物 

分 类 号：O613.71[理学—无机化学] O621.254.1[理学—化学]