In situ Powder X-Ray Diffraction Study of the Process of NiMoO4–SiO2 Reduction with Hydrogen Full article
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2016, Volume: 57, Number: 5, Pages: 955-961 Pages count : 7 DOI: 10.1134/S0022476616050152 | ||||
| Tags | in situ X-ray diffraction, mixed oxides, reduction | ||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | V.44.1.15. |
Abstract:
An interest in NiMoО4–SiO2 reduction stems from its promising use as catalysts for hydrodeoxygenation and hydrodesulfurization processes. The work exploits in situ X-ray diffraction to investigate phase transformations during NiMoO4–SiO2 reduction with hydrogen in a temperature range of 30-700°C. The α-NiMoО4 reduction is shown to proceed in two stages. In the first stage, at 400-500°C, an intermediate state (Ni,Mo,□)O mixed oxide and Ni1–xMox form. In the second stage, above 650°C, two solid solutions based on the Mo and Ni structures form. The structure of the intermediate state is refined by the Rietveld method. It is demonstrated that the Ni–Mo mixed oxide forms based on the NiO structure, which contains a certain number of cation vacancies.
Cite:
Bulavchenko O.A.
, Smirnov A.A.
, Khromova S.A.
, Vinokurov Z.S.
, Ishchenko A.V.
, Yakovlev V.A.
, Tsybulya S.V.
In situ Powder X-Ray Diffraction Study of the Process of NiMoO4–SiO2 Reduction with Hydrogen
Journal of Structural Chemistry. 2016. V.57. N5. P.955-961. DOI: 10.1134/S0022476616050152 WOS Scopus РИНЦ AN OpenAlex
In situ Powder X-Ray Diffraction Study of the Process of NiMoO4–SiO2 Reduction with Hydrogen
Journal of Structural Chemistry. 2016. V.57. N5. P.955-961. DOI: 10.1134/S0022476616050152 WOS Scopus РИНЦ AN OpenAlex
Original:
Булавченко О.А.
, Смирнов А.А.
, Хромова С.А.
, Винокуров З.С.
, Ищенко А.В.
, Яковлев В.А.
, Цыбуля С.В.
Рентгенографическое исследование в условиях in situ процесса восстановления водородом NiMoO4-SiO2
Журнал структурной химии. 2016. Т.57. №5. С.1005-1011. DOI: 10.15372/JSC20160515RSCI РИНЦ OpenAlex
Рентгенографическое исследование в условиях in situ процесса восстановления водородом NiMoO4-SiO2
Журнал структурной химии. 2016. Т.57. №5. С.1005-1011. DOI: 10.15372/JSC20160515RSCI РИНЦ OpenAlex
Dates:
| Submitted: | Sep 14, 2015 |
| Published print: | Sep 1, 2016 |
| Published online: | Dec 16, 2016 |
Identifiers:
| Web of science: | WOS:000390016500015 |
| Scopus: | 2-s2.0-85006100949 |
| Elibrary: | 29475443 |
| Chemical Abstracts: | 2016:2104447 |
| OpenAlex: | W2562464960 |