Deactivation of CuO/ZnO and CuO/ZrO2 catalysts for oxidative methanol reforming

E. D. Schrum, T. L. Reitz, H. H. Kung*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

12 Scopus citations

Abstract

The activity for oxidative methanol reforming (OMR) as a function of time-on-stream was determined for CuO catalysts supported on ZnO or ZrO2. The ZnO-supported samples deactivated more quickly than the ZrO2-supported samples during 18 hour reactions at 225 °C. X-ray diffraction characterization showed that copper oxide particle size increases during the reaction, which implied that loss of CuO surface area is a cause of deactivation. The data suggested that the increase in CuO particle size was accompanied by sintering of the support, which was facilitated by the presence of water vapor at elevated temperatures.

Original languageEnglish (US)
Title of host publicationStudies in Surface Science and Catalysis
Pages229-235
Number of pages7
Volume139
DOIs
StatePublished - 2001

Funding

This work was supported by Argonne National Laboratory. Many helpful suggestions and discussion with Professor Mayfair Kung, and assistance in catalyst synthesis from her and Dr. W. Ji are gratefully acknowledged.

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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