CeO2-Al2O3-supported noble metal catalysts for steam reforming of hydrocarbons for fuel cells

Jian Zheng, James Jon Strohm, Chunshan Song

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

Various noble metals (Rh, Ru, Ir, Pt, Pd, Ni) were supported on CeO2 modified Al2O3 for the steam reforming of jet fuel via a two-step process, i.e., pre-reforming under low temperature and main reforming at high temperature. The conversion was always near 100%. In the products, hydrogen was near 55%, the content of CO was only 5%, while the CO2 and CH4 was the dominant carbon-containing products with similar contents (both ∼ 20%). At higher temperature, e.g., 800°C, Ir/CeO2-Al2O3 catalyst showed the highest activity for steam reforming of lower hydrocarbon among all the CeO2-Al2O3 supported noble metal catalysts. However, at lower temperature as in the case of pre-reforming (at ∼ 500°C), iridium lost its superiority to rhodium and rhenium.

Original languageEnglish (US)
Pages (from-to)743-745
Number of pages3
JournalACS Division of Fuel Chemistry, Preprints
Volume48
Issue number2
StatePublished - Sep 1 2003

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Steam reforming
Precious metals
Fuel cells
Reforming reactions
Hydrocarbons
Catalysts
Temperature
Rhenium
Jet fuel
Iridium
Rhodium
Hydrogen
Carbon

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

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title = "CeO2-Al2O3-supported noble metal catalysts for steam reforming of hydrocarbons for fuel cells",
abstract = "Various noble metals (Rh, Ru, Ir, Pt, Pd, Ni) were supported on CeO2 modified Al2O3 for the steam reforming of jet fuel via a two-step process, i.e., pre-reforming under low temperature and main reforming at high temperature. The conversion was always near 100{\%}. In the products, hydrogen was near 55{\%}, the content of CO was only 5{\%}, while the CO2 and CH4 was the dominant carbon-containing products with similar contents (both ∼ 20{\%}). At higher temperature, e.g., 800°C, Ir/CeO2-Al2O3 catalyst showed the highest activity for steam reforming of lower hydrocarbon among all the CeO2-Al2O3 supported noble metal catalysts. However, at lower temperature as in the case of pre-reforming (at ∼ 500°C), iridium lost its superiority to rhodium and rhenium.",
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CeO2-Al2O3-supported noble metal catalysts for steam reforming of hydrocarbons for fuel cells. / Zheng, Jian; Strohm, James Jon; Song, Chunshan.

In: ACS Division of Fuel Chemistry, Preprints, Vol. 48, No. 2, 01.09.2003, p. 743-745.

Research output: Contribution to journalConference article

TY - JOUR

T1 - CeO2-Al2O3-supported noble metal catalysts for steam reforming of hydrocarbons for fuel cells

AU - Zheng, Jian

AU - Strohm, James Jon

AU - Song, Chunshan

PY - 2003/9/1

Y1 - 2003/9/1

N2 - Various noble metals (Rh, Ru, Ir, Pt, Pd, Ni) were supported on CeO2 modified Al2O3 for the steam reforming of jet fuel via a two-step process, i.e., pre-reforming under low temperature and main reforming at high temperature. The conversion was always near 100%. In the products, hydrogen was near 55%, the content of CO was only 5%, while the CO2 and CH4 was the dominant carbon-containing products with similar contents (both ∼ 20%). At higher temperature, e.g., 800°C, Ir/CeO2-Al2O3 catalyst showed the highest activity for steam reforming of lower hydrocarbon among all the CeO2-Al2O3 supported noble metal catalysts. However, at lower temperature as in the case of pre-reforming (at ∼ 500°C), iridium lost its superiority to rhodium and rhenium.

AB - Various noble metals (Rh, Ru, Ir, Pt, Pd, Ni) were supported on CeO2 modified Al2O3 for the steam reforming of jet fuel via a two-step process, i.e., pre-reforming under low temperature and main reforming at high temperature. The conversion was always near 100%. In the products, hydrogen was near 55%, the content of CO was only 5%, while the CO2 and CH4 was the dominant carbon-containing products with similar contents (both ∼ 20%). At higher temperature, e.g., 800°C, Ir/CeO2-Al2O3 catalyst showed the highest activity for steam reforming of lower hydrocarbon among all the CeO2-Al2O3 supported noble metal catalysts. However, at lower temperature as in the case of pre-reforming (at ∼ 500°C), iridium lost its superiority to rhodium and rhenium.

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