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Ru-Ba/ANF Catalysts for Ammonia Decomposition: Support Carbonization Influence Full article

Journal International Journal of Hydrogen Energy
ISSN: 0360-3199 , E-ISSN: 1879-3487
Output data Year: 2023, Volume: 48, Number: 59, Pages: 22453-22461 Pages count : 9 DOI: 10.1016/j.ijhydene.2023.03.182
Tags Alumina nanofibers; Ammonia decomposition; Barium; Ruthenium catalysts; Specific catalytic activity
Authors Borisov Vadim A. 1 , Sidorchik Irina A. 1 , Temerev Victor L. 1 , Simunin Mikhail M. 2,3 , Leont’eva Natalya N. 1 , Muromtsev Ivan V. 1 , Mikhlin Yuri L. 4 , Voronin Anton S. 2,3 , Fedorova Zaliya A. 5 , Snytnikov Pavel V. 5 , Shlyapin Dmitry A. 1
Affiliations
1 Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis SB RAS, Omsk, 644040, Russia
2 Federal Research Center, Krasnoyarsk Science Centre SB RAS, Krasnoyarsk, 660036, Russia
3 Siberian Federal Uneversity, Krasnoyarsk, 660041, Russia
4 Institute of Chemistry and Chemical Technology, Krasnoyarsk Science Center SB RAS, Krasnoyarsk, 660036, Russia
5 Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva, 5, Novosibirsk 630090, Russia

Funding (1)

1 Ministry of Science and Higher Education of the Russian Federation 0239-2021-0011

Abstract: The study of ruthenium catalysts for ammonia decomposition on carbonized and non-carbonized Al2O3 nanofibers (ANF) showed that the activity of catalysts with carbonized supports (ANFC) was 2-3 times higher compared to non-carbonized ones. Thus, on Ru/ANFC and Ru/ANF the release of hydrogen reached 133.5 and 34.7 mmol H2/(min•gcat), respectively, whereas on Ru-BaAc/ANFC and Ru-BaAc/ANF, only 118.8 and 58.6 mmol H2/(min•gcat), respectively. On the average, the activation energy of ammonia decomposition on ANFC-supported catalysts is 15 kJ/mol lower than that value for ANF-supported catalysts. According to TEM data, Ru particles on ANFC are larger than on ANF, but are more evenly distributed. An increase in the activity of the catalyst correlates with a change in the electronic state of the active component. XPS data for Ru indicate a shift in the binding energy towards lower values when going from ANF to ANFC.
Cite: Borisov V.A. , Sidorchik I.A. , Temerev V.L. , Simunin M.M. , Leont’eva N.N. , Muromtsev I.V. , Mikhlin Y.L. , Voronin A.S. , Fedorova Z.A. , Snytnikov P.V. , Shlyapin D.A.
Ru-Ba/ANF Catalysts for Ammonia Decomposition: Support Carbonization Influence
International Journal of Hydrogen Energy. 2023. V.48. N59. P.22453-22461. DOI: 10.1016/j.ijhydene.2023.03.182 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Dates:
Submitted: Dec 27, 2022
Accepted: Mar 12, 2023
Published online: Apr 5, 2023
Published print: Jul 12, 2023
Identifiers:
Web of science: WOS:001041413600001
Scopus: 2-s2.0-85151647483
Elibrary: 54134406
Chemical Abstracts: 2023:657203
OpenAlex: W4362634035
publication_identifier.sciact_ihcp_identifier_type: 4192
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Scopus 13
Elibrary 8
OpenAlex 12
Web of science 13
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