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The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides. / Komova, Oksana V.; Ozerova, Anna M.; Rudneva, Yuliya V. et al.

In: International Journal of Hydrogen Energy, Vol. 111, 20.03.2025, p. 361-370.

Research output: Contribution to journal › Article › peer-review

Harvard

Komova, OV, Ozerova, AM, Rudneva, YV, Simagina, VI, Lipatnikova, IL, Rogov, VA, Prosvirin, IP & Netskina, OV 2025, 'The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides', International Journal of Hydrogen Energy, vol. 111, pp. 361-370. https://doi.org/10.1016/j.ijhydene.2025.02.319

APA

Komova, O. V., Ozerova, A. M., Rudneva, Y. V., Simagina, V. I., Lipatnikova, I. L., Rogov, V. A., Prosvirin, I. P., & Netskina, O. V. (2025). The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides. International Journal of Hydrogen Energy, 111, 361-370. https://doi.org/10.1016/j.ijhydene.2025.02.319

Vancouver

Komova OV, Ozerova AM, Rudneva YV, Simagina VI, Lipatnikova IL, Rogov VA et al. The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides. International Journal of Hydrogen Energy. 2025 Mar 20;111:361-370. doi: 10.1016/j.ijhydene.2025.02.319

Author

Komova, Oksana V. ; Ozerova, Anna M. ; Rudneva, Yuliya V. et al. / The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides. In: International Journal of Hydrogen Energy. 2025 ; Vol. 111. pp. 361-370.

BibTeX

@article{8dd8f9940178428a93ea299a58e96536,
title = "The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides",
abstract = "Samples of dispersed metallic Co and Co0.9Cu0.1 alloy were prepared through the reductive thermolysis of metal precursors. This study represents the first comparative analysis of the catalytic activity and stability of the metals and oxidized metal samples in the hydrolysis of three boron-containing hydrides: NaBH4, NH3BH3, and (CH2NH2BH3)2. It was shown that the oxygen-containing layer on the metal is directly involved in the catalytic process, and additional oxidation of the metals enhances the catalytic activity and prolongs the stability during repeated reaction cycles. The results obtained and literature analysis allow us to suggest that the reducibility of cobalt oxide phases and their amount in the catalyst play a crucial role. Only oxides with high reducibility may act as catalysts in the hydrolysis of boranes (NH3BH3, (CH2NH2BH3)2). The easier the oxide is reduced, the higher the concentration of active CoxB centers is formed under the action of the reaction medium, and the higher the initial rate of hydrogen generation will be observed. On the other hand, a deficit of oxide phase during the longer stability tests may restrict the generation of fresh CoxB and complicate the water activation process considered in literature as a rate-determining step.",
keywords = "Ammonia borane, Cobalt, Cobalt-copper alloy, Ethylenediamine bisborane, Hydrolysis, Oxidation, Sodium borohydride",
author = "Komova, {Oksana V.} and Ozerova, {Anna M.} and Rudneva, {Yuliya V.} and Simagina, {Valentina I.} and Lipatnikova, {Inna L.} and Rogov, {Vladimir A.} and Prosvirin, {Igor P.} and Netskina, {Olga V.}",
note = "This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis SB RAS [project FWUR-2024-0034] and for Nikolaev Institute of Inorganic Chemistry SB RAS [project 121031700315-2].",
year = "2025",
month = mar,
day = "20",
doi = "10.1016/j.ijhydene.2025.02.319",
language = "English",
volume = "111",
pages = "361--370",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Science Publishing Company, Inc.",

}

RIS

TY - JOUR

T1 - The key role of oxide phases covering dispersed metals in their catalytic activity and stability in hydrolysis of boron-containing hydrides

AU - Komova, Oksana V.

AU - Ozerova, Anna M.

AU - Rudneva, Yuliya V.

AU - Simagina, Valentina I.

AU - Lipatnikova, Inna L.

AU - Rogov, Vladimir A.

AU - Prosvirin, Igor P.

AU - Netskina, Olga V.

N1 - This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis SB RAS [project FWUR-2024-0034] and for Nikolaev Institute of Inorganic Chemistry SB RAS [project 121031700315-2].

PY - 2025/3/20

Y1 - 2025/3/20

N2 - Samples of dispersed metallic Co and Co0.9Cu0.1 alloy were prepared through the reductive thermolysis of metal precursors. This study represents the first comparative analysis of the catalytic activity and stability of the metals and oxidized metal samples in the hydrolysis of three boron-containing hydrides: NaBH4, NH3BH3, and (CH2NH2BH3)2. It was shown that the oxygen-containing layer on the metal is directly involved in the catalytic process, and additional oxidation of the metals enhances the catalytic activity and prolongs the stability during repeated reaction cycles. The results obtained and literature analysis allow us to suggest that the reducibility of cobalt oxide phases and their amount in the catalyst play a crucial role. Only oxides with high reducibility may act as catalysts in the hydrolysis of boranes (NH3BH3, (CH2NH2BH3)2). The easier the oxide is reduced, the higher the concentration of active CoxB centers is formed under the action of the reaction medium, and the higher the initial rate of hydrogen generation will be observed. On the other hand, a deficit of oxide phase during the longer stability tests may restrict the generation of fresh CoxB and complicate the water activation process considered in literature as a rate-determining step.

AB - Samples of dispersed metallic Co and Co0.9Cu0.1 alloy were prepared through the reductive thermolysis of metal precursors. This study represents the first comparative analysis of the catalytic activity and stability of the metals and oxidized metal samples in the hydrolysis of three boron-containing hydrides: NaBH4, NH3BH3, and (CH2NH2BH3)2. It was shown that the oxygen-containing layer on the metal is directly involved in the catalytic process, and additional oxidation of the metals enhances the catalytic activity and prolongs the stability during repeated reaction cycles. The results obtained and literature analysis allow us to suggest that the reducibility of cobalt oxide phases and their amount in the catalyst play a crucial role. Only oxides with high reducibility may act as catalysts in the hydrolysis of boranes (NH3BH3, (CH2NH2BH3)2). The easier the oxide is reduced, the higher the concentration of active CoxB centers is formed under the action of the reaction medium, and the higher the initial rate of hydrogen generation will be observed. On the other hand, a deficit of oxide phase during the longer stability tests may restrict the generation of fresh CoxB and complicate the water activation process considered in literature as a rate-determining step.

KW - Ammonia borane

KW - Cobalt

KW - Cobalt-copper alloy

KW - Ethylenediamine bisborane

KW - Hydrolysis

KW - Oxidation

KW - Sodium borohydride

UR - https://www.mendeley.com/catalogue/8ed75997-1562-3623-b2fc-9568eaa4625e/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85218413432&origin=inward&txGid=caabe47f62e13bc22310b8670f0b34b2

U2 - 10.1016/j.ijhydene.2025.02.319

DO - 10.1016/j.ijhydene.2025.02.319

M3 - Article

VL - 111

SP - 361

EP - 370

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

ER -

ID: 64892327