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A highly active and synergistic Pt/Mo 2 C/Al 2 O 3 catalyst for water-gas shift reaction
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Osman, Ahmed I., Abu-Dahrieh, Jehad K., Cherkasov, Nikolay, Fernández-García, Javier, Walker, David, Walton, Richard I., Rooney, David W. and Rebrov, Evgeny (2018) A highly active and synergistic Pt/Mo 2 C/Al 2 O 3 catalyst for water-gas shift reaction. Molecular Catalysis, 455 . pp. 38-47. doi:10.1016/j.mcat.2018.05.025 ISSN 2468-8231.
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Official URL: http://dx.doi.org/10.1016/j.mcat.2018.05.025
Abstract
Catalysts consisting of Pt and Cu supported on Mo2C/η-Al2O3, Mo2C/γ-Al2O3 or Mo2C were prepared and used for the low-temperature water gas shift reaction (WGSR). The catalysts were characterized by elemental analysis, powder X-ray diffraction (XRD), temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The catalysts were studied in water gas shift reaction with a reaction mixture containing 11% CO, 43% H2, 6% CO2, 21% H2O (real feed composition mixture from the reformer) and balance He, with a reaction temperature range of 180–300 °C at a space velocity (SV) of 125,000 h−1. Catalyst supports (η-Al2O3 and γ-Al2O3), led to different synergetic effect between the two most active phases of Pt metal and Mo2C. Pt/Mo2C/η-Al2O3 is a promising catalyst (44% conversion at 180 °C) due to the close interaction between Pt and Mo2C phases on the surface of the catalyst. The 4 wt% Pt-Mo2C showed the highest activity where the temperature at which 50% conversion observed was at only 180 °C with SV of 125,000 h−1 and constant stability over 85 h.
Item Type: | Journal Article | ||||||||||
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Subjects: | Q Science > QD Chemistry | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Physics |
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Library of Congress Subject Headings (LCSH): | Platinum, Molybdenum, Copper, Synthesis gas, Catalysts | ||||||||||
Journal or Publication Title: | Molecular Catalysis | ||||||||||
Publisher: | Elsevier | ||||||||||
ISSN: | 2468-8231 | ||||||||||
Official Date: | August 2018 | ||||||||||
Dates: |
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Volume: | 455 | ||||||||||
Page Range: | pp. 38-47 | ||||||||||
DOI: | 10.1016/j.mcat.2018.05.025 | ||||||||||
Status: | Not Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 26 June 2018 | ||||||||||
Date of first compliant Open Access: | 29 May 2019 | ||||||||||
RIOXX Funder/Project Grant: |
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