Synthesis of highly active nano-sized Pt/CeO2 catalyst via a cerium hydroxy carbonate precursor for water gas shift reaction

Hari S. Potdar, Dae Woon Jeong, Ki Sun Kim, Hyun Seog Roh

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A novel precipitation/digestion route has been developed to synthesize crystalline cerium hydroxy carbonate (CHC: Ce(OH)CO3) by using an equimolar quantity of cerium nitrate (Ce(NO3)3• 6H2O) and mixed precipitants (KOH + K2CO3) at room temperature. Nano-sized CeO2 supports could be prepared by the pre-calcination of CHC at 400 °C for 4 h. A highly active water gas shift (WGS) catalyst, 1 wt.% Pt/CeO2 catalyst showed almost equilibrium CO conversion with 100% CO2 selectivity at 320 °C even at the gas hourly space velocity (GHSV) of 45,625 h-1.

Original languageEnglish
Pages (from-to)1268-1274
Number of pages7
JournalCatalysis Letters
Volume141
Issue number9
DOIs
Publication statusPublished - 2011 Sep

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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