La and Co-Based Materials for Ammonia Decomposition: Activity, Stability and Structural Changes | Sciact - CRIS-system of Boreskov Institute of Catalysis

La and Co-Based Materials for Ammonia Decomposition: Activity, Stability and Structural Changes Full article

Journal

Наносистемы: физика, химия, математика = Nanosystems: physics, chemistry, mathematics
ISSN: 2220-8054 , E-ISSN: 2305-7971

Output data

Year: 2025, Volume: 16, Number: 4, Pages: 498-509 Pages count : 12 DOI: 10.17586/2220-8054-2025-16-4-498-509

Tags

Аmmonia decomposition; cobalt; lanthanum cobaltite; lanthanum scandate; electrode materials

Authors

Borisov Vadim A. ¹ , Fedorova Zaliya A. ² , Ichetovkin Zakhar N. ^3,4 , Gerasimov Evgeniy Y. ² , Shlyapin Dmitry A. ² , Stroeva Anna Y. ⁴ , Temerev Victor L. ¹ , Arbuzov Alexey B. ¹ , Tsybulya Sergey V. ² , Snytnikov Pavel V. ² , Kuzmin Anton V. ³

Affiliations

1	Center of New Chemical Technologies BIC, Boreskov Institute of Catalysis, Neftezavodskaya st., 54, Omsk, 644040, Russia
2	Boreskov Institute of Catalysis, Lavrentiev Ave., 5, Novosibirsk, 630090, Russia
3	Department of Technology of Inorganic Materials and Electrochemical Production, Vyatka State University, Moskovskaya st., 36, Kirov, 610000, Russia
4	Institute of Solid State Chemistry and Mechanochemistry of the Siberian Branch of the RAS, Kutateladze st., 18, Novosibirsk, 630128, Russia

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0033
2	Ministry of Science and Higher Education of the Russian Federation	FWUR-2024-0039

The La0.9Sr0.1Sc0.9Co0.1O3-δ (LS) and La0.9Sr0.1CoO3-δ (LC) phases and composite materials based on them were synthesized. There are data in the literature on the activity of pure or modified forms of LC in ammonia decomposition, but there are no data on the activity of the LS phase and LS-LC composites. Therefore, the stability and activity of LS-LC composites and initial LS and LC in ammonia decomposition were investigated. The best result in the decomposition of ammonia at 700 °C and WHSV of 60 000 ml NH3·gcat-1·h-1 shows LC – 99%, the worst LS – 80%. Under the same conditions, the activity of samples LC, 40LS-60LC and 50LS-50LC remains unchanged for 40 hours. It was found that during ammonia decomposition, the LC phase decomposes to form cobalt and La(OH)3 nanoparticles, but the LS phase does not undergo significant changes, which is confirmed by X-ray diffraction, IR spectroscopy, Raman spectroscopy and TEM.

Borisov V.A. , Fedorova Z.A. , Ichetovkin Z.N. , Gerasimov E.Y. , Shlyapin D.A. , Stroeva A.Y. , Temerev V.L. , Arbuzov A.B. , Tsybulya S.V. , Snytnikov P.V. , Kuzmin A.V.
La and Co-Based Materials for Ammonia Decomposition: Activity, Stability and Structural Changes
Наносистемы: физика, химия, математика = Nanosystems: physics, chemistry, mathematics. 2025. V.16. N4. P.498-509. DOI: 10.17586/2220-8054-2025-16-4-498-509 РИНЦ OpenAlex publication_identifier_short.sciact_ihcp_identifier_type

Submitted:	Jun 8, 2025
Accepted:	Jun 22, 2025
Published online:	Sep 5, 2025

Elibrary:	82819116
OpenAlex:	W4414023708
publication_identifier.sciact_ihcp_identifier_type:	4483

Пока нет цитирований