Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.1016/j.ijhydene.2023.03.182

Ключевые слова: alumina nanofibers, ammonia decomposition, barium, ruthenium catalysts, Specific catalytic activity

Аннотация: 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.

Журнал: International Journal of Hydrogen Energy

Выпуск журнала: Т.48, №59

Номера страниц: 22453-22461

ISSN журнала: 03603199

Издатель: Elsevier Science Publishing Company, Inc.

• Borisov V.A. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Sidorchik I.A. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Temerev V.L. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Simunin M.M. (Siberian Federal University)
• Leont'eva N.N. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Muromtsev I.V. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Mikhlin Y.L. (Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science)
• Voronin A.S. (Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science)
• Fedorova Z.A. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Snytnikov P.V. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)
• Shlyapin D.A. (Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences)

• Ядро РИНЦ (eLIBRARY.RU)