Wyszukiwarka
Preparation of methanation catalysts for high temperature SOEC by β-cyclodextrin-assisted impregnation of nano-CeO2 with transition metal oxides
Abstrakt
The aim of this work was to prepare and examine the catalytic activity of nanometric CeO2 decorated with transition metal oxides – Ni, Co, Cu, Fe and Mn – towards a high-temperature methanation process under SOEC CO2/H2O simulated co-electrolysis conditions. Samples were prepared using the wet impregnation method via the conventional process and with the addition of native cyclodextrin. The influence of β-cyclodextrin (βCD) onto the size, dispersion and integration of the obtained metal nanoparticles was investigated. The differences between the catalysts’ reducibility revealed that samples prepared from βCD-containing solutions, in most cases, resulted in the creation of smaller MexOy NPs on the surface of the substrate material compared to those prepared using traditional nitrate solutions. The samples containing Ni and Co were the only ones that observably catalysed methane synthesis. The high dispersion and integration of NPs prepared via the proposed synthesis route resulted in increased catalytic activity and enhanced stability, which was most pronounced for the Co-impregnated sample. The methane production peak for Ni-βCD/CeO2 at 375℃ was characterised by nearly 99% CO conversion and 80% selectivity towards CH4 production. Co-βCD/CeO2 reached 84% CO conversion and almost 60% methane selectivity at 450℃. The usage of CeO2 coupled with βCD for the preparation of catalysts for high-temperature methane synthesis for use in SOECs gave promising results for further application.
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Autorzy (5)
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Adrian Mizera mgr. inż.
- Wydział Inżynierii Materiałowej i Ceramiki, Akademia Górniczo-Hutnicza w Krakowie
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Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.ijhydene.2021.10.144
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
nr 47,
strony 1901 - 1916,
ISSN: 0360-3199 - Język:
- angielski
- Rok wydania:
- 2022
- Opis bibliograficzny:
- Błaszczak P., Mizera A., Bochentyn B., Wang S., Jasiński P.: Preparation of methanation catalysts for high temperature SOEC by β-cyclodextrin-assisted impregnation of nano-CeO2 with transition metal oxides// INTERNATIONAL JOURNAL OF HYDROGEN ENERGY -Vol. 47,iss. 3 (2022), s.1901-1916
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.ijhydene.2021.10.144
- Źródła finansowania:
-
- Publikacja bezkosztowa
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 142 razy
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