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, Hyunseog Roh

Research output: Contribution to journalArticle

31 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 1

Fingerprint

Cerium
Water gas shift
Carbonates
Catalysts
Carbon Monoxide
Calcination
Nitrates
Gases
Crystalline materials
Temperature
potassium carbonate
cerium nitrate

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

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title = "Synthesis of highly active nano-sized Pt/CeO2 catalyst via a cerium hydroxy carbonate precursor for water gas shift reaction",
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.",
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Synthesis of highly active nano-sized Pt/CeO2 catalyst via a cerium hydroxy carbonate precursor for water gas shift reaction. / Potdar, Hari S.; Jeong, Dae Woon; Kim, Ki Sun; Roh, Hyunseog.

In: Catalysis Letters, Vol. 141, No. 9, 01.09.2011, p. 1268-1274.

Research output: Contribution to journalArticle

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T1 - Synthesis of highly active nano-sized Pt/CeO2 catalyst via a cerium hydroxy carbonate precursor for water gas shift reaction

AU - Potdar, Hari S.

AU - Jeong, Dae Woon

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AU - Roh, Hyunseog

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