Carbonized Melamine Cyanurate as a Palladium Catalyst Support for the Dehydrogenation of N-heterocyclic Compounds in LOHC Technology Научная публикация
| Журнал |
C-Journal of Carbon Research
ISSN: 2311-5629 |
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| Вых. Данные | Год: 2023, Том: 9, Номер: 3, Номер статьи : 83, Страниц : 19 DOI: 10.3390/c9030083 | ||
| Ключевые слова | g-C3N4; melamine cyanurate; Pd catalysts; hydrogen storage; LOHC; dehydrogenation | ||
| Авторы |
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| Организации |
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Информация о финансировании (3)
| 1 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0005 |
| 2 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0010 |
| 3 | Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) | 0239-2021-0003 |
Реферат:
In this work, the use of graphite-like carbon nitride (g-C3N4) with improved texture characteristics for the synthesis of supported palladium catalysts of dehydrogenation of nitrogen-containing heterocycles was studied. This process is key to the creation of liquid organic carrier technology (LOHC) using N-heterocycles as reversibly hydrogenated/dehydrogenated substrates. For the preparation of graphite-like carbon nitride supports with advanced textural characteristics, well-established technology of the melamine cyanurate complex carbonization and standard techniques of adsorption precipitation together with wet impregnation were used for the synthesis of Pd-containing systems. The activity of the synthesized catalysts was studied in decahydroquinoline dehydrogenation. The high weight content of extractable hydrogen (7.2 wt%) and the high extraction rate, respectively, make it possible to consider these substances as the most promising N-heterocyclic compounds for this technology. It was shown that an increase in the specific surface area of g-C3N4 allows for achieving a slightly lower but comparable fineness of palladium particles for the 1 wt% Pd/MCA-500 sample, compared to the standard 1 wt% Pd/C. In this case, the catalytic activity of 1 wt% Pd/MCA-500 in the dehydrogenation of both substrates exceeded the analogous parameter for catalysts supported by nitrogen-free supports. This regularity is presumably associated with the electron-donor effect of surface nitrogen, which favorably affects the dehydrogenation rate as well as the stability of catalytic systems.
Библиографическая ссылка:
Koskin A.P.
, Larichev Y.V.
, Stepanenko S.A.
, Dubinin Y.V.
, Ayupov A.B.
, Saraev A.A.
, Suprun E.A.
, Yeletsky P.M.
Carbonized Melamine Cyanurate as a Palladium Catalyst Support for the Dehydrogenation of N-heterocyclic Compounds in LOHC Technology
C-Journal of Carbon Research. 2023. V.9. N3. 83 :1-19. DOI: 10.3390/c9030083 WOS Scopus РИНЦ CAPlus OpenAlex
Carbonized Melamine Cyanurate as a Palladium Catalyst Support for the Dehydrogenation of N-heterocyclic Compounds in LOHC Technology
C-Journal of Carbon Research. 2023. V.9. N3. 83 :1-19. DOI: 10.3390/c9030083 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 30 июн. 2023 г. |
| Принята к публикации: | 24 авг. 2023 г. |
| Опубликована online: | 30 авг. 2023 г. |
| Опубликована в печати: | 1 сент. 2023 г. |
Идентификаторы БД:
| Web of science: | WOS:001076920400001 |
| Scopus: | 2-s2.0-85172809089 |
| РИНЦ: | 54948166 |
| Chemical Abstracts: | 2023:2053623 |
| OpenAlex: | W4386286852 |