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A composite having a porous substrate and polyhedral Cu-Fe oxide nanoparticles showing high catalytic activity during the steam reforming of methanol at low temperatures

•Facile synthesis of a composite catalyst consisting of faceted nanoparticles supported on porous Al-Cu-Fe oxide.•As-prepared catalyst exhibits excellent SRM performance at low temperatures.•Cu plays a crucial role in the catalytic reaction. The steam reforming of methanol (SRM) to generate hydrogen...

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Published in:Journal of alloys and compounds 2021-12, Vol.885, p.160854, Article 160854
Main Authors: Bai, Fan, Zhang, Tiantian, Qiao, Weijun, Zhang, Lei, Ma, Haikun, Sun, Haitao, Guo, Huijie, Ma, Shuang, Ren, Tiezhen, He, Zhanbing
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cited_by cdi_FETCH-LOGICAL-c337t-74fbe464c704fe4faf9140998c39512cd8f7e93e9ac7ad2599aa375a5ba496333
cites cdi_FETCH-LOGICAL-c337t-74fbe464c704fe4faf9140998c39512cd8f7e93e9ac7ad2599aa375a5ba496333
container_end_page
container_issue
container_start_page 160854
container_title Journal of alloys and compounds
container_volume 885
creator Bai, Fan
Zhang, Tiantian
Qiao, Weijun
Zhang, Lei
Ma, Haikun
Sun, Haitao
Guo, Huijie
Ma, Shuang
Ren, Tiezhen
He, Zhanbing
description •Facile synthesis of a composite catalyst consisting of faceted nanoparticles supported on porous Al-Cu-Fe oxide.•As-prepared catalyst exhibits excellent SRM performance at low temperatures.•Cu plays a crucial role in the catalytic reaction. The steam reforming of methanol (SRM) to generate hydrogen is a potentially viable means of reducing the present reliance on fossil fuels. Although Cu-based catalysts are commonly employed to promote the SRM, obtaining more efficient catalytic performance at low temperatures remains challenging. Herein, we report a one-step dealloying route to the synthesis of a composite catalyst comprising a porous substrate and polyhedral Cu-Fe oxide nanoparticles. When applied to the SRM, this composite exhibited a hydrogen yield of 364.33 mL·kg−1·s−1 under atmospheric pressure at temperatures as low as 493 K, together with a methanol conversion of 89.86% and negligible carbon monoxide generation. Analyses of the metal valences in this catalyst indicated that elemental Cu played a crucial role in the catalytic reaction.
doi_str_mv 10.1016/j.jallcom.2021.160854
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ispartof Journal of alloys and compounds, 2021-12, Vol.885, p.160854, Article 160854
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1873-4669
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subjects Catalyst
Catalysts
Catalytic activity
Chemical synthesis
Copper
Dealloying
Fossil fuels
Iron
Low temperature
Metal oxide
Methanol
Nanoparticles
Reforming
Steam reforming of methanol
Substrates
Valence state
title A composite having a porous substrate and polyhedral Cu-Fe oxide nanoparticles showing high catalytic activity during the steam reforming of methanol at low temperatures
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