Activation of Nickel Oxide Catalysts Modified with Cobalt, Cerium, Manganese, and Zirconium Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
||||||
|---|---|---|---|---|---|---|---|
| Output data | Year: 2023, Volume: 64, Number: 4, Pages: 484-493 Pages count : 10 DOI: 10.1134/s0023158423040079 | ||||||
| Tags | nickel oxide; reduction; activation; in situ XRD analysis; TPR; modifying additives | ||||||
| Authors |
|
||||||
| Affiliations |
|
Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0002 |
Abstract:
The activation of a series of catalysts with the general formula Ni0.9M0.1O (M = Co, Ce, Mn, and Zr) synthesized by coprecipitation and the effect of modifying additives on the phase composition and structure of these catalysts were studied. The effect of additives on the initial state of the samples was studied by X-ray diffraction (XRD) analysis, and their role in the process of NiO reduction was studied using in situ XRD analysis and temperature-programmed reduction with hydrogen (TPR-H2). It was found that the modifiers changed the structure and microstructure of the initial samples to increase the specific surface area and decrease the average coherent scattering region (CSR) sizes of NiO. The introduction of Mn and Co led to the formation of substitutional solid solutions with the oxide NiO. For Ce and Zr, the release of the oxide CeO2 and X-ray amorphous ZrOx was observed. The use of these additives led to an increase in the temperature of NiO reduction to a metallic state compared to that of the massive oxide. In addition, the effect of modifying additives on the particle size of the final metal was revealed. The use of Ce and Mn decreased the average CSR size of Ni by a factor of 2–5 compared to that of massive NiO.
Cite:
Mikhnenko M.D.
, Afonasenko T.N.
, Rogov V.A.
, Bulavchenko O.A.
Activation of Nickel Oxide Catalysts Modified with Cobalt, Cerium, Manganese, and Zirconium
Kinetics and Catalysis. 2023. V.64. N4. P.484-493. DOI: 10.1134/s0023158423040079 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Activation of Nickel Oxide Catalysts Modified with Cobalt, Cerium, Manganese, and Zirconium
Kinetics and Catalysis. 2023. V.64. N4. P.484-493. DOI: 10.1134/s0023158423040079 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Original:
Михненко М.Д.
, Афонасенко Т.Н.
, Рогов В.А.
, Булавченко О.А.
Исследование процесса активации никель-оксидных катализаторов, модифицированных кобальтом, церием, марганцем и цирконием
Кинетика и катализ. 2023. Т.64. №4. С.486-496. DOI: 10.31857/S0453881123040081 РИНЦ OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Исследование процесса активации никель-оксидных катализаторов, модифицированных кобальтом, церием, марганцем и цирконием
Кинетика и катализ. 2023. Т.64. №4. С.486-496. DOI: 10.31857/S0453881123040081 РИНЦ OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Dates:
| Submitted: | Dec 27, 2022 |
| Accepted: | Mar 22, 2023 |
| Published online: | Jul 23, 2023 |
| Published print: | Aug 1, 2023 |
Identifiers:
| Web of science: | WOS:001034791000014 |
| Scopus: | 2-s2.0-85165556734 |
| Elibrary: | 54370859 |
| Chemical Abstracts: | 2023:1546937 |
| OpenAlex: | W4385163630 |
| publication_identifier.sciact_ihcp_identifier_type: | 4235 |
Citing:
Пока нет цитирований