文献类型：期刊文献

英文题名：Study on Pt-structured anodic alumina catalysts for catalytic combustion of toluene: Effects of competitive adsorbents and competitive impregnation methods

作者：Zhang, Qi[1];Luan, Hongjuan[1];Li, Tao[1];Wu, Yongqiang[1];Ni, Yanhui[1]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：360

起止页码：1066

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20154801613640);WOS:【SCI-EXPANDED(收录号:WOS:000366592400081)】；

基金：This work was financially supported by Shanghai Rising-Star Program (B type) (Grant No. 13QB1401300).

语种：英文

外文关键词：Toluene; Competitive adsorbent; Competitive method; Chlorine-resistance

摘要：Novel competitive impregnation methods were used to prepare high dispersion Pt-structured anodic alumina catalysts. It is found that competitive adsorbents owning different acidity result in different Pt loading amount and also exert great effects on Pt distribution, particle size and redox ability. The suitable adsorption ability of lactic acid led to its best activity for catalytic combustion of toluene. Co-competitive and pre-competitive impregnation methods were also compared and the mechanisms of two competitive methods were proposed. Co-competitive impregnation made Pt distribute more uniformly through pore channels and resulted in better catalytic activity, because of the weaker spatial constraint effect of lactic acid. Furthermore, the optimized Pt-structured anodic alumina catalyst also showed a good chlorin-resistance under moisture atmosphere, because water could promote the reaction of dichloromethane (DCM) transformation and clean chloride by-products to release more active sites. (C) 2015 Elsevier B.V. All rights reserved.