Chromium addition to alumina-supported platinum catalysts and effect on catalytic activity in methane combustion

Mardwita, Hideki Matsune, Sakae Takenaka, Masahiro Kishida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We investigated the addition of chromium to alumina-supported Pt catalysts and its effect on catalytic activity in methane combustion. The Pt and Cr binary alumina-supported catalysts exhibited much higher activity than those without Cr. Alumina-supported Cr catalysts contain two chromium species, Cr 3+ and Cr 6+. From XPS analysis, it was found that more Cr 6+ species existed in the binary catalysts than in the single alumina-supported Cr catalysts. Pt species in the binary catalysts may promote Cr oxidation. Since Cr 6+ species are known to be more active than Cr3ff species in oxidation reactions, the increase in Cr 6+ in the binary catalysts may contribute to their higher activity compared with the Pt/Al 2O 3 catalyst.

Original languageEnglish
Pages (from-to)493-497
Number of pages5
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume45
Issue number7
DOIs
Publication statusPublished - Jul 31 2012

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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