Double Oxalates of Rh(III) with Ni(II) and Co(II) – Effective Precursors of Nanoalloys for Hydrocarbons Steam Reforming Full article
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487 |
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| Output data | Year: 2023, Volume: 48, Number: 59, Pages: 22428-22438 Pages count : 11 DOI: 10.1016/j.ijhydene.2023.01.365 | ||||||
| Tags | rhodium; Nickel; Steam reforming; Bimetallic catalysts; Complex precursors | ||||||
| Authors |
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| Affiliations |
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Funding (3)
| 1 | Russian Science Foundation | 22-23-00672 (122011100070-7) |
| 2 | The Ministry of Education and Science of the Russian Federation | FWUZ-2021-0002 (121031700315-2) |
| 3 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0011 |
Abstract:
Heteronuclear coordination compounds of d-metals are suitable single-source precursors for bimetallic nanoalloys, which often show extraordinary catalytic properties due to synergetic effect. In particular, Ni- and Rh-based catalysts are highly effective in low temperature steam reforming processes. Double oxalates of Rh with Ni and Co of the formula {[Rh(H2O)2(C2O4)μ-(C2O4)]2M(H2O)2}·6H2O (M = Ni, Co) were synthesized and structurally characterized. According to thermogravimetric analysis, the complexes decompose completely in He and H2 atmospheres to form corresponding nanoalloys at ∼300 °C. The calcination in O2 atmosphere leads to formation of spinel type mixed oxide. The supported Co–Rh/Al2O3 and Ni–Rh/Al2O3 catalysts were prepared by impregnation of double oxalate complexes in porous support with subsequent calcination and tested in propane low temperature steam reforming in CH4 excess. The Co-containing catalyst showed comparable activity regarding to pure Rh/Al2O3 sample, while bimetallic Ni–Rh/Al2O3 catalyst revealed to be appreciably more active, than monometallic catalysts with higher active component loadings. Rh–Ni catalyst allowed for complete propane conversion at T ≈ 350 °C, whereas for Rh catalyst the temperature was T ≈ 410 °C, and Rh–Co did not reach complete C3H8 conversion at all.
Cite:
Zadesenets A.V.
, Garkul I.A.
, Filatov E.Y.
, Sukhikh A.S.
, Plusnin P.E.
, Urlukov A.S.
, Uskov S.I.
, Potemkin D.I.
, Korenev S.V.
Double Oxalates of Rh(III) with Ni(II) and Co(II) – Effective Precursors of Nanoalloys for Hydrocarbons Steam Reforming
International Journal of Hydrogen Energy. 2023. V.48. N59. P.22428-22438. DOI: 10.1016/j.ijhydene.2023.01.365 WOS Scopus РИНЦ AN OpenAlex
Double Oxalates of Rh(III) with Ni(II) and Co(II) – Effective Precursors of Nanoalloys for Hydrocarbons Steam Reforming
International Journal of Hydrogen Energy. 2023. V.48. N59. P.22428-22438. DOI: 10.1016/j.ijhydene.2023.01.365 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Nov 25, 2022 |
| Accepted: | Jan 30, 2023 |
| Published online: | Feb 18, 2023 |
| Published print: | Jul 12, 2023 |
Identifiers:
| Web of science: | WOS:001032776400001 |
| Scopus: | 2-s2.0-85148367364 |
| Elibrary: | 54110346 |
| Chemical Abstracts: | 2023:346651 |
| OpenAlex: | W4321350189 |