Carbon dioxide reforming of methane over co-precipitated Ni-Ce-ZrO2 catalysts

H. S. Potdar, Hyun Seog Roh, Ki Won Jun, Min Ji, Zhong Wen Liu

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

An active and relatively stable Ni-Ce-ZrO2 catalyst has been designed and prepared conveniently by a novel one-step co-precipitation/digestion method. This catalyst exhibited higher stability compared with a catalyst having the same composition but prepared using the conventional impregnation method. It was found that 15% Ni (w/w) co-precipitated with Ce-ZrO2 making the cubic phase of Ce0.8Zr0.2O2 gave synthesis gas with CH4 conversion more than 97% at 800°C and that the activity was maintained for 100 h during the reaction. The higher activity, conversion and stability of these catalysts are mainly related to the nano-crystalline nature of cubic Ce1-xZrxO2 producing strong interaction with finely dispersed nano-sized NiOx crystallites.

Original languageEnglish
Pages (from-to)95-100
Number of pages6
JournalCatalysis Letters
Volume84
Issue number1-2
DOIs
Publication statusPublished - 2002 Nov 1

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Methane
Reforming reactions
Carbon Dioxide
Carbon dioxide
Catalysts
Synthesis gas
Coprecipitation
Crystallites
Impregnation
Crystalline materials
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Potdar, H. S. ; Roh, Hyun Seog ; Jun, Ki Won ; Ji, Min ; Liu, Zhong Wen. / Carbon dioxide reforming of methane over co-precipitated Ni-Ce-ZrO2 catalysts. In: Catalysis Letters. 2002 ; Vol. 84, No. 1-2. pp. 95-100.
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Carbon dioxide reforming of methane over co-precipitated Ni-Ce-ZrO2 catalysts. / Potdar, H. S.; Roh, Hyun Seog; Jun, Ki Won; Ji, Min; Liu, Zhong Wen.

In: Catalysis Letters, Vol. 84, No. 1-2, 01.11.2002, p. 95-100.

Research output: Contribution to journalArticle

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AB - An active and relatively stable Ni-Ce-ZrO2 catalyst has been designed and prepared conveniently by a novel one-step co-precipitation/digestion method. This catalyst exhibited higher stability compared with a catalyst having the same composition but prepared using the conventional impregnation method. It was found that 15% Ni (w/w) co-precipitated with Ce-ZrO2 making the cubic phase of Ce0.8Zr0.2O2 gave synthesis gas with CH4 conversion more than 97% at 800°C and that the activity was maintained for 100 h during the reaction. The higher activity, conversion and stability of these catalysts are mainly related to the nano-crystalline nature of cubic Ce1-xZrxO2 producing strong interaction with finely dispersed nano-sized NiOx crystallites.

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