文献类型：期刊文献

英文题名：Metallic oxide-modified sulfated zirconia: an environment-friendly solid acid catalyst

作者：Liu, Naiwang[1];Wang, Xin[1];Shi, Li[1];Meng, Xuan[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：43

期号：8

起止页码：3625

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000459944900043)】；

基金：We are so grateful and want to extend our sincere appreciations for the financial support from Shanghai Sailing Program (no. 18YF1406300), National Natural Science Foundation of China (no. 21808054), China Postdoctoral Science Foundation (no. 2017M621389), and Explore and Research Foundation for Youth Scholars of Ministry of Education of China (no. 222201814011).

语种：英文

摘要：Metallic oxides were introduced into the synthesis of sulfated zirconia. Catalytic activity was tested by an olefin removal reaction. By combining the analysis from the aspect of catalyst morphology, sulfur state and surface acid property, we concluded that the incorporation of metallic oxides has three important positive effects on the environmental friendly solvent-free preparation: (i) it inhibited the phase transition during calcination and promoted the existence of tetragonal ZrO2, which is recognized as the valid phase; (ii) it increased the amount of S, especially S6+, which is the source of active sites; and (iii) it adjusted the surface acid property, extended the single service lifetime and reduced the deactivation rate.