Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts Full article
| Journal |
Nanomaterials
, E-ISSN: 2079-4991 |
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| Output data | Year: 2022, Volume: 12, Number: 20, Article number : 3676, Pages count : 23 DOI: 10.3390/nano12203676 | ||
| Tags | methane dry reforming; carbon formation; supercritical synthesis; fluorite; heterogeneous catalysis | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Science Foundation | 18-73-10167 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 075-12-2021-697 |
Abstract:
Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence of support composition and preparation method on the catalysts’ morphology and surface features. The oxygen mobility was studied by isotope heteroexchange with C18O2. After testing in DRM, carbon deposits after catalysts’ testing in DRM were investigated by temperature-programmed oxidation with thermo-gravimetric analysis. The lowest amounts of carbon deposits were obtained for unmodified Ni-CeZr and Ni-CeNbZr compositions. Ti addition lead to an increased amount of carbon, which was removed at higher temperatures. The use of supercritical supports also resulted in the formation of a higher amount of coke. Catalysts prepared by the supercritical synthesis were tested in DRM for 25 h. The highest activity drop was observed in the first three hours. For all compositions, close values of carbon deposits were revealed
Cite:
Smal E.
, Bespalko Y.
, Arapova M.
, Fedorova V.
, Valeev K.
, Eremeev N.
, Sadovskaya E.
, Krieger T.
, Glazneva T.
, Sadykov V.
, Simonov M.
Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts
Nanomaterials. 2022. V.12. N20. 3676 :1-23. DOI: 10.3390/nano12203676 WOS Scopus РИНЦ OpenAlex ANCAN PMID
Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts
Nanomaterials. 2022. V.12. N20. 3676 :1-23. DOI: 10.3390/nano12203676 WOS Scopus РИНЦ OpenAlex ANCAN PMID
Dates:
| Submitted: | Sep 21, 2022 |
| Accepted: | Oct 17, 2022 |
| Published print: | Oct 19, 2022 |
| Published online: | Oct 19, 2022 |
Identifiers:
| ≡ Web of science: | WOS:000875061700001 |
| ≡ Scopus: | 2-s2.0-85140770026 |
| ≡ Elibrary: | 50358011 |
| ≡ OpenAlex: | W4306835791 |
| ≡ Chemical Abstracts: | 2022:2783431 |
| ≡ Chemical Abstracts (print): | 180:385252 |
| ≡ PMID: | 36296866 |