Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol Full article
| Journal |
International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596 |
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| Output data | Year: 2023, Volume: 24, Number: 11, Article number : 9680, Pages count : 27 DOI: 10.3390/ijms24119680 | ||
| Tags | methane dry reforming; supercritical synthesis; fluorite; ceria–titania; heterogeneous catalysis | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 18-73-10167 |
Abstract:
A series of 5%Ni/Ce1-xTixO2 catalysts was prepared with nickel impregnation of mixed Ce–Ti oxides obtained via synthesis in supercritical isopropanol. All oxides have a cubic fluorite phase structure. Ti is incorporated into the fluorite structure. Small amounts of impurities of TiO2 or mixed Ce–Ti oxides appear with Ti introduction. Supported Ni is presented as the NiO or NiTiO3 perovskite phase. Ti introduction increases total samples reducibility and results in stronger interaction of supported Ni with the oxide support. The fraction of rapidly replaced oxygen and the average tracer diffusion coefficient also increase. The number of metallic nickel sites decreased with increasing Ti content. All catalysts except Ni-CeTi0.45 demonstrate close activity in tests of dry reforming of methane. The lower activity of Ni-CeTi0.45 can be connected to Ni decoration with species of the oxide support. The incorporation of Ti prevents detachment of Ni particles from the surface and their sintering during dry reforming of methane.
Cite:
Smal E.
, Bespalko Y.
, Arapova M.
, Fedorova V.
, Valeev K.
, Eremeev N.
, Sadovskaya E.
, Krieger T.
, Glazneva T.
, Sadykov V.
, Simonov M.
Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol
International Journal of Molecular Sciences. 2023. V.24. N11. 9680 :1-27. DOI: 10.3390/ijms24119680 WOS Scopus РИНЦ AN PMID OpenAlex
Dry Reforming of Methane over 5%Ni/Ce1-xTixO2 Catalysts Obtained via Synthesis in Supercritical Isopropanol
International Journal of Molecular Sciences. 2023. V.24. N11. 9680 :1-27. DOI: 10.3390/ijms24119680 WOS Scopus РИНЦ AN PMID OpenAlex
Dates:
| Submitted: | Apr 24, 2023 |
| Accepted: | May 31, 2023 |
| Published print: | Jun 2, 2023 |
| Published online: | Jun 2, 2023 |
Identifiers:
| Web of science: | WOS:001006567700001 |
| Scopus: | 2-s2.0-85161870906 |
| Elibrary: | 54096458 |
| Chemical Abstracts: | 2023:1244321 |
| PMID: | 37298629 |
| OpenAlex: | W4379184988 |