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Highly stable CuFe1.2Al.8O4 catalyst with low CO selectivity for hydrogen production in HT-PEMFCs application

Shen, Qiuwan LU ; Chen, Gaokui ; Ren, Jinli ; Yan, Min ; Andersson, Martin LU and Li, Shian LU (2024) In International Journal of Applied Ceramic Technology
Abstract

Methanol steam reforming (MSR) is considered as an effective way to provide on-board hydrogen production technology for fuel cell applications. CuFe1.2Al.8O4 spinel catalyst was synthesized by sol–gel method and the chemical and physical properties were studied in-depth. X-ray diffraction, hydrogen-temperature programmed reduction (H2-TPR), BET, and scanning electron microscopy were used to characterize the catalysts with reaction times of 20, 50, and 100 h. The results of H2-TPR showed that 90% of spinel Cu2+ was released after 100 h reaction. BET results show that the specific surface area and pore characteristics of the catalyst have not changed greatly after reaction... (More)

Methanol steam reforming (MSR) is considered as an effective way to provide on-board hydrogen production technology for fuel cell applications. CuFe1.2Al.8O4 spinel catalyst was synthesized by sol–gel method and the chemical and physical properties were studied in-depth. X-ray diffraction, hydrogen-temperature programmed reduction (H2-TPR), BET, and scanning electron microscopy were used to characterize the catalysts with reaction times of 20, 50, and 100 h. The results of H2-TPR showed that 90% of spinel Cu2+ was released after 100 h reaction. BET results show that the specific surface area and pore characteristics of the catalyst have not changed greatly after reaction for 20, 50, and 100 h. Furthermore, in the unsteady-state test, CuFe1.2Al.8O4 exhibited excellent catalytic activity and thermal stability under long-term repeated start-up and stop cycles. At 275°C, the methanol conversion rate remained around 94% and the CO selectivity remained below 1%. Therefore, the catalyst synthesized in this study has excellent stability and low CO selectivity, making it a highly promising on-board hydrogen production catalyst in the field of HT-proton exchange membrane fuel cells (PEMFCs).

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
CuFeAlO catalyst, HT-PEMFCs, low CO selectivity, methanol steam reforming, stability test
in
International Journal of Applied Ceramic Technology
publisher
Wiley
external identifiers
  • scopus:85187480336
ISSN
1546-542X
DOI
10.1111/ijac.14729
language
English
LU publication?
yes
id
d18ae74f-e303-4eef-bc19-8b7b198c3bb2
date added to LUP
2024-04-09 14:18:27
date last changed
2024-04-09 14:19:44
@article{d18ae74f-e303-4eef-bc19-8b7b198c3bb2,
  abstract     = {{<p>Methanol steam reforming (MSR) is considered as an effective way to provide on-board hydrogen production technology for fuel cell applications. CuFe<sub>1.2</sub>Al<sub>.8</sub>O<sub>4</sub> spinel catalyst was synthesized by sol–gel method and the chemical and physical properties were studied in-depth. X-ray diffraction, hydrogen-temperature programmed reduction (H<sub>2</sub>-TPR), BET, and scanning electron microscopy were used to characterize the catalysts with reaction times of 20, 50, and 100 h. The results of H<sub>2</sub>-TPR showed that 90% of spinel Cu<sup>2+</sup> was released after 100 h reaction. BET results show that the specific surface area and pore characteristics of the catalyst have not changed greatly after reaction for 20, 50, and 100 h. Furthermore, in the unsteady-state test, CuFe<sub>1.2</sub>Al<sub>.8</sub>O<sub>4</sub> exhibited excellent catalytic activity and thermal stability under long-term repeated start-up and stop cycles. At 275°C, the methanol conversion rate remained around 94% and the CO selectivity remained below 1%. Therefore, the catalyst synthesized in this study has excellent stability and low CO selectivity, making it a highly promising on-board hydrogen production catalyst in the field of HT-proton exchange membrane fuel cells (PEMFCs).</p>}},
  author       = {{Shen, Qiuwan and Chen, Gaokui and Ren, Jinli and Yan, Min and Andersson, Martin and Li, Shian}},
  issn         = {{1546-542X}},
  keywords     = {{CuFeAlO catalyst; HT-PEMFCs; low CO selectivity; methanol steam reforming; stability test}},
  language     = {{eng}},
  publisher    = {{Wiley}},
  series       = {{International Journal of Applied Ceramic Technology}},
  title        = {{Highly stable CuFe<sub>1.2</sub>Al<sub>.8</sub>O<sub>4</sub> catalyst with low CO selectivity for hydrogen production in HT-PEMFCs application}},
  url          = {{http://dx.doi.org/10.1111/ijac.14729}},
  doi          = {{10.1111/ijac.14729}},
  year         = {{2024}},
}