Study on modification of solid superacid WO3/ZrO2 and its application to esterification

Cun Zhang, Tao Liu, Hong Juan Wang, Feng Wang, Xiao Yu Pan, Xiao Qin Liu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In order to improve the catalytic activity and stability of the solid superacid catalyst WO3/ZrO2, the Ce and Mn-modified WO3/ZrO2 solid superacids were respectively prepared by co-precipitation method. WO3/ZrO2 and modified WO3/ZrO2 catalysts were characterized by means of XRD and Raman. The effects of modification on the crystalline structure and surface property of the catalysts were studied with the corresponding spectra. The catalytic performance of modified WO3/ZrO2 using for synthesizing n-butyl propionate was investigated, and the optimum parameters of synthesis were determined. The results show that the Ce or Mn doped tungstated zirconia could prevent the grain growth and make crystallite size decrease, however, no change in the structure of WO3/ZrO2 catalyst was found. Compared with WO3/ZrO2 solid superacid, Ce, Mn-modified catalysts show higher catalytic activity.

Original languageEnglish
Pages (from-to)983-988
Number of pages6
JournalGao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
Volume26
Issue number6
DOIs
StatePublished - Dec 2012

Keywords

  • Cerium
  • Esterification
  • Manganese
  • Solid superacid
  • Tungstated zirconia

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