ZrMn复合氧化物对苯的催化燃烧性能影响因素研究  

Study on performance influencing factors of Benzene catalytic combustion over ZrMn composite oxide catalysts

作　　者：朱思敏 卢北虎 许顺磊 余波 杨雪嘉 游立 Zhu Simin;Lu Beihu;Xu Shunlei;Yu Bo;Yang Xuejia;You Li(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064

出　　处：《船电技术》2024年第5期19-22,27,共5页Marine Electric & Electronic Engineering

摘　　要：采用氧化还原共沉淀法合成了不同温度煅烧的ZrMn复合氧化物催化剂用于苯的催化燃烧,通过TG-DTA、XRD、N_(2)吸脱附、H_(2)-TPR等对ZrMn复合氧化物进行表征分析,结果表明:煅烧温度为300/400℃制备的ZrMn复合氧化物催化化燃烧苯的性能较好,200℃时苯转化率可达到100%。煅烧温度的过度升高会引起ZrMn复合氧化物晶型的转变、比表面积减小以及氧化还原性能的降低,进而影响其催化燃烧苯的活性。ZrMn composite oxide catalysts calcined at different temperatures were synthesized for benzene catalytic combustion by redox co-precipitation method and characterized by TG-DTA,XRD,N_(2) adsorption-desorption,H_(2)-TPR,etc.The results show that ZrMn composite oxides prepared at 300/400℃have better properties for benzene catalytic combustion,due to the benzene conversion reaching 100%at 200℃.The excessive increase of the calcination temperature will cause the transformation of the crystalline form of ZrMn composite oxides and the reduction of the specific surface area as well as the redox properties,which will further impact their catalytic activity for benzene combustion.

关 键 词：催化燃烧 苯 锆锰复合氧化物 

分 类 号：TM911[电气工程—电力电子与电力传动]