Sulfated zirconia catalyst supported on MCM-41 mesoporous molecular sieve

Chang Lin Chen, Soofin Cheng, Hong Ping Lin, She Tin Wong, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

95 引文 斯高帕斯(Scopus)

摘要

Sulfated zirconia (SZ) was supported on siliceous hollow tubular MCM-41 mesoporous molecular sieve by using a one-step incipient wetness impregnation method with zirconium sulfate as the precursor. The SZ/MCM-41 catalyst was obtained by thermal decomposition of the precursor in air. The resultant catalyst was characterized with various techniques, such as nitrogen physisorption, X-ray diffraction, SEM, and TEM. It was shown that the well-ordered channels of MCM-41 support arranged in hexagonal arrays while the hollow tubular morphology was retained. Both tetragonal and monoclinic phases of zirconia were developed in the catalysts. With the addition of a proper amount of aluminum as a promoter, resulting in catalyst SZA/MCM-41, the transformation of zirconia from metastable tetragonal phase to monoclinic phase was retarded. The catalytic activity of SZA/MCM-41 catalyst in the isomerization of n-butane was dramatically improved in comparison to the activities of SZ/MCM-41 or SZA/silica.

原文英語
頁(從 - 到)21-30
頁數10
期刊Applied Catalysis A: General
215
發行號1-2
DOIs
出版狀態已發佈 - 7月 13 2001
對外發佈

ASJC Scopus subject areas

  • 催化
  • 製程化學與技術

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