Construction of CuO-ZnO-Al2O3/CeO2 catalyst via the shape effect for methanol steam reforming

Moyu Liao, Ruofei Xiang, Xinyu Tan, Zhongxu Dai, Hang Qin and Hanning Xiao

Renewable Energy, 2025, vol. 247, issue C

Abstract: CuO-ZnO-Al2O3/CeO2 catalysts based on CeO2 nanocubes (CeO2-NC), nanopolyhedrons (CeO2-NP), and nanorods (CeO2-NR) were synthesized by hydrothermal and incipient impregnation methods, and their catalytic performance in methanol steam reforming was tested. The correlation between the activity data and the physicochemical properties of the catalysts indicated that the micromorphology of the CeO2 support significantly influenced the catalytic performance. The excellent reactivity of CuO-ZnO-Al2O3/CeO2-NR with 100 % methanol conversion rate at 280 °C was attributed to the small particles with large specific surface area, abundant oxygen vacancies and chemisorbed oxygen, superior reducibility and strong methanol adsorption capacity. Meanwhile, the strong interaction between CuO-ZnO-Al2O3 and CeO2-NR greatly improved the catalytic efficiency. Besides, CuO-ZnO-Al2O3/CeO2-NR showed the lowest CO selectivity of 0.41–1.86 % in the range of 230–280 °C and a stability of over 40 h at 280 °C, demonstrating its potential as an excellent catalyst for methanol steam reforming.

Keywords: CuO-ZnO-Al2O3/CeO2 catalyst; Methanol steam reforming; CeO2 morphology; Catalytic performance; Oxygen vacancy (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148125007165
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:247:y:2025:i:c:s0960148125007165

DOI: 10.1016/j.renene.2025.123054

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().