Gallium-promoted mesoporous sulfated zirconia: A catalyst for n-butane isomerization

Chung Yuan Mou, Shu Yu Lin, Xio Rong Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Mesoporous sulfated zirconia (m-ZrO2) were synthesized hydrothermally using Zr(O-nPr)4 as Zirconium precursor, ammonium sulfate as sulfur source and CTABr as template. Then the as-synthesized mesoporous zirconia were impregnated with gallium nitrate to give the Ga-promoted mesoporous sulfated zirconia.(m-GSZ). The catalysts were characterized by nitrogen physisorption(BET) for texture properties; x-ray diffraction and TEM for structures. The catalytic conversion of n-butane isomerization was measured in a flow reactor. With the addition of a proper amount of Ga as a promoter, the catalytic activity of for n-butane isomerization at a very low temperature of 200 °C in flow system was strongly promoted, giving near-equilibrium production of iso-butane. The remarkable increase of activities was determined primarily by the amount of Ga addition and the temperature of calcination. The nature of the promotion was determined by EPR for the oxidative de-hydrogenation activity of Ga2O3. Finally, we compare the activity of Ga-promoted SZ catalyst with the Al-promoted catalyst.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 235th National Meeting, Abstracts of Scientific Papers
Publication statusPublished - 2008
Externally publishedYes
Event235th National Meeting of the American Chemical Society, ACS 2008 - New Orleans, LA, United States
Duration: Apr 6 2008Apr 10 2008

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727


Conference235th National Meeting of the American Chemical Society, ACS 2008
Country/TerritoryUnited States
CityNew Orleans, LA

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


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