Effect of Ce and Co addition to Fe/Al2O3 for catalytic methane decomposition

Ahmed Sadeq Al-Fatesh; Ashraf Amin; Ahmed Aidid Ibrahim; Wasim Ullah Khan; Mostafa Aly Soliman; Raja Lafi Al-Otaibi; Anis Hamza Fakeeha

doi:10.3390/catal6030040

Effect of Ce and Co addition to Fe/Al₂O₃ for catalytic methane decomposition

Ahmed Sadeq Al-Fatesh, Ashraf Amin, Ahmed Aidid Ibrahim, Wasim Ullah Khan, Mostafa Aly Soliman, Raja Lafi Al-Otaibi, Anis Hamza Fakeeha^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Catalytic methane decomposition is studied in a fixed bed reactor. Two sets of bimetallic catalysts are employed, namely: 30%Fe-X%Ce/Al2O3 and 30%Fe-X%Co/Al₂O₃, and compared with monometallic 30%Fe/Al₂O₃ catalyst. The effect of promoting Fe with Ce and Co and reduction temperature are investigated. The results reveal that Ce addition has shown a negative impact on H₂ yield while a positive effect on H₂ yield and catalyst stability are observed with Co addition. In terms of number of moles of produced hydrogen per active sites, Fe/Al₂O₃ has shown a higher number of moles of hydrogen compared to bimetallic catalysts. The catalyst reduced at 500 °C exhibits better activity as compared to the catalyst reduced at 950 °C. Carbon nano-tubes are deposited on the catalyst within the range of 14-73 nm diameter. Two types of carbon nanotubes are detected: Cα and Cγ.

Original language	English
Article number	40
Journal	Catalysts
Volume	6
Issue number	3
DOIs	https://doi.org/10.3390/catal6030040
State	Published - 8 Mar 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 by the authors; licensee MDPI, Basel, Switzerland.

Keywords

Carbon nano-tubes
Ceria
Cobalt
Hydrogen
Iron

ASJC Scopus subject areas

Catalysis
General Environmental Science
Physical and Theoretical Chemistry

Access to Document

10.3390/catal6030040

Cite this

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title = "Effect of Ce and Co addition to Fe/Al2O3 for catalytic methane decomposition",

abstract = "Catalytic methane decomposition is studied in a fixed bed reactor. Two sets of bimetallic catalysts are employed, namely: 30%Fe-X%Ce/Al2O3 and 30%Fe-X%Co/Al2O3, and compared with monometallic 30%Fe/Al2O3 catalyst. The effect of promoting Fe with Ce and Co and reduction temperature are investigated. The results reveal that Ce addition has shown a negative impact on H2 yield while a positive effect on H2 yield and catalyst stability are observed with Co addition. In terms of number of moles of produced hydrogen per active sites, Fe/Al2O3 has shown a higher number of moles of hydrogen compared to bimetallic catalysts. The catalyst reduced at 500 °C exhibits better activity as compared to the catalyst reduced at 950 °C. Carbon nano-tubes are deposited on the catalyst within the range of 14-73 nm diameter. Two types of carbon nanotubes are detected: Cα and Cγ.",

keywords = "Carbon nano-tubes, Ceria, Cobalt, Hydrogen, Iron",

author = "Al-Fatesh, {Ahmed Sadeq} and Ashraf Amin and Ibrahim, {Ahmed Aidid} and Khan, {Wasim Ullah} and Soliman, {Mostafa Aly} and Al-Otaibi, {Raja Lafi} and Fakeeha, {Anis Hamza}",

note = "Publisher Copyright: {\textcopyright} 2016 by the authors; licensee MDPI, Basel, Switzerland.",

year = "2016",

month = mar,

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doi = "10.3390/catal6030040",

language = "English",

volume = "6",

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T1 - Effect of Ce and Co addition to Fe/Al2O3 for catalytic methane decomposition

AU - Al-Fatesh, Ahmed Sadeq

AU - Amin, Ashraf

AU - Ibrahim, Ahmed Aidid

AU - Khan, Wasim Ullah

AU - Soliman, Mostafa Aly

AU - Al-Otaibi, Raja Lafi

AU - Fakeeha, Anis Hamza

PY - 2016/3/8

Y1 - 2016/3/8

N2 - Catalytic methane decomposition is studied in a fixed bed reactor. Two sets of bimetallic catalysts are employed, namely: 30%Fe-X%Ce/Al2O3 and 30%Fe-X%Co/Al2O3, and compared with monometallic 30%Fe/Al2O3 catalyst. The effect of promoting Fe with Ce and Co and reduction temperature are investigated. The results reveal that Ce addition has shown a negative impact on H2 yield while a positive effect on H2 yield and catalyst stability are observed with Co addition. In terms of number of moles of produced hydrogen per active sites, Fe/Al2O3 has shown a higher number of moles of hydrogen compared to bimetallic catalysts. The catalyst reduced at 500 °C exhibits better activity as compared to the catalyst reduced at 950 °C. Carbon nano-tubes are deposited on the catalyst within the range of 14-73 nm diameter. Two types of carbon nanotubes are detected: Cα and Cγ.

AB - Catalytic methane decomposition is studied in a fixed bed reactor. Two sets of bimetallic catalysts are employed, namely: 30%Fe-X%Ce/Al2O3 and 30%Fe-X%Co/Al2O3, and compared with monometallic 30%Fe/Al2O3 catalyst. The effect of promoting Fe with Ce and Co and reduction temperature are investigated. The results reveal that Ce addition has shown a negative impact on H2 yield while a positive effect on H2 yield and catalyst stability are observed with Co addition. In terms of number of moles of produced hydrogen per active sites, Fe/Al2O3 has shown a higher number of moles of hydrogen compared to bimetallic catalysts. The catalyst reduced at 500 °C exhibits better activity as compared to the catalyst reduced at 950 °C. Carbon nano-tubes are deposited on the catalyst within the range of 14-73 nm diameter. Two types of carbon nanotubes are detected: Cα and Cγ.

KW - Carbon nano-tubes

KW - Ceria

KW - Cobalt

KW - Hydrogen

KW - Iron

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