首页|Sn-decorated CeO2 with different morphologies for direct dehydrogenation of ethylbenzene

Sn-decorated CeO2 with different morphologies for direct dehydrogenation of ethylbenzene

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Three Sn-decorated ceria catalysts with various morphologies(rods,particles,and cubes)were prepared and applied to the direct dehydrogenation of ethylbenzene.Multi-technology characterizations,including X-ray photoelectron spectroscopy(XPS),H2-temperature programmed reduction(H2-TPR),and Raman spectroscopy,prove that the oxygen vacancies are the active sites for ethylbenzene dehydroge-nation,which can be regulated by engineering CeO2 morphology and enhanced via introducing metal Sn.Given the results of activity test,the catalytic activities for ethylbenzene dehydrogenation over different samples are closely dependent on the amount of oxygen vacancies.The reduced Sn-decorated CeO2 catalyst with nanoparticles morphology exhibits better dehydrogenation performance than the other two studied catalysts at 600 ℃.This work provides an effective approach to regulate the active oxygen vacancies and further enhance the dehydrogenation activities through engineering the surface morphology of the catalyst and introducing suitable additives.

Ethylbenzene dehydrogenationCeO2SnMorphologyOxygen vacancyRare earths

Kai Zhang、Guoju Cui、Mengzhen Yuan、Huiwen Huang、Ning Li、Jiale Xu、Guowei Wang、Chunyi Li

展开 >

State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao,266580,China

Petrochemical Plant of Sinopec Shengli Oilfield Company,Dongying,257237,China

College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao,266590,China

National Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesNational Natural science Foundation of ChinaChina University of Petroleum for Postgraduate Technology Innovation ProjectFundamental Research Funds for the Central Universities

2217839018CX02016A22178390YCX202005318CX02016A

2024

10.1016/j.jre.2022.11.012

稀土学报(英文版)
中国稀土学会

稀土学报(英文版)

CSTPCDEI
影响因子：1.3
ISSN：1002-0721
年,卷(期)：2024.42(1)
  • 41