太原理工大学学报2017，Vol.48Issue(2)：163-168,6.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.02.004
钙钛矿型催化剂LaNiO3、 LaCoO3同时催化净化柴油车尾气中NOx和碳烟颗粒物
Simultaneous Removal of NOx and Soot over Perovskite-Type Complex Oxides Catalysts LaNiO3 and LaCoO3
摘要
Abstract
LaNiO3 and LaCoO3 perovskite catalysts for simultaneous removal of nitrogen oxides and diesel soot were prepared by sol-gel method.The results indicate that LaNiO3 catalysts exhibited excellent catalytic activities for soot and NOx,which could decrease the soot combustion temperature tm by 216 ℃ and enhance the NO conversion efficiency by 104％ as compared with those of non-catalysed reaction.It was thus assumed that diesel soot undergoes catalytic combustion reaction over perovskite-type catalysts through two routes:at relatively low temperatures,diesel soot is oxidized by the NO2 intermediate generated during NO oxidation reaction,and at high temperatures,it is oxidized by both NO2 and O2.关键词
钙钛矿型复合催化剂/碳烟颗粒物/氮氧化物Key words
perovskite-type complex catalysts/diesel soot/nitrogen oxides分类
资源环境引用本文复制引用
高永华,崔佳丽,高利珍..钙钛矿型催化剂LaNiO3、 LaCoO3同时催化净化柴油车尾气中NOx和碳烟颗粒物[J].太原理工大学学报,2017,48(2):163-168,6.基金项目
国家留学基金委(CSC)资助项目:导电石墨烯与高分子材料([2014]3072-201406935028) （CSC）
太原理工大学青年基金资助项目:K和Pd双取代的La1-xKxCo1-yPdyO3-δ钙钛矿催化剂制备及碳烟燃烧性能研究(2013Z050) （2013Z050）
