多孔金属材料用于废气净化贵金属催化剂载体的研究  

Probe into Application of Powder Metallurgical Porous Metal Material as a Support of Noble Metal Catalyst in Waste Gas Purification

作　　者：金家敏[1] 包伟芳[1] 吴菊清[1] 张德明[1] 

机构地区：[1]上海材料研究所,上海200437

出　　处：《材料导报（网络版）》2008年第4期1-3,共3页Materials Review

摘　　要：依据酸性材料对贵金属催化剂具有毒性的观点，列举了汽车尾气净化催化剂陶瓷载体、柴油机车尾气烟尘微粒过滤器陶瓷过滤材料等存在的不足，提出了工业生产中几个值得开发或再研究的项目。粉末冶金多孔金属蜂窝做为汽车用贵金属催化剂载体具有可涂性好、涂层不易剥落、涂层量多、体积比表面较金属片大等优点，可以进一步提高催化活性，降低转化温度，节省贵金属，降低能耗。多孔金属材料载体价格高，完全可以采用降低贵金属耗量和减小催化器体积降低成本。The acidic materials or elements（active carbon, graphite, sulphur, Al2O3, SiO2, cordierite ceramic etc）appear to be poisonous to the metal catalyst. Thus, some items worthy to be studied further are suggested. The powder metallurgy porous metal honeycomb as a support of automobile catalyst shows many advantages： shorter ignition time, lower light-off temperature, higher catalytic activity, lower consumption of noble metal and the plaster being not easily peeled off.

关 键 词：净化催化 载体 多孔金属 

分 类 号：TB17[生物学—生物工程] TQ426.8[化学工程]