Hydrogen Production by N-Heterocycle Dehydrogenation over Pd Supported on Aerogel-Prepared Mg-Al Oxides Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
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| Output data | Year: 2023, Volume: 13, Number: 2, Article number : 334, Pages count : 19 DOI: 10.3390/catal13020334 | ||
| Tags | hydrogen storage; N-heterocycles; Pd catalysts; acceptorless dehydrogenation; aerogel supports; porous structure; nitrogen adsorption; surface active sites | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0005 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0010 |
Abstract:
Tetradecahydrophenazine (14HP) is a nitrogen-containing heterocycle compound with a high content of hydrogen that can be released during its dehydrogenation to phenazine (P). The high stability of the 14HP/P pair and relatively low dehydrogenation temperature make 14HP a promising organic hydrogen carrier. This manuscript is devoted to the investigation of hydrogen production by 14HP dehydrogenation over Pd supported on a series of magnesium-aluminum oxides prepared by the aerogel method. This technique made it possible to synthesize catalyst supports characterized by a high surface area and high concentration of surface active sites where active transition metals could be stabilized in a finely dispersed state. The synthesized aerogels had high specific surface areas and pore volumes. A surface area as high as 600 m2/g after calcination at 500 °C was observed for the mixed aerogel with an Mg:Al ratio of 1:4. An increase in the concentration of acidic electron-acceptor sites determined by EPR on the surface of the mixed magnesium-aluminum oxide supports with a high surface area prepared by the aerogel method was found to result in higher hydrogen production due to the faster dehydrogenation of sterically hindered nitrogen-containing tetradecahydrophenazine heterocycles.
Cite:
Shivtsov D.M.
, Koskin A.P.
, Stepanenko S.A.
, Ilyina E.V.
, Ayupov A.B.
, Bedilo A.F.
, Yakovlev V.A.
Hydrogen Production by N-Heterocycle Dehydrogenation over Pd Supported on Aerogel-Prepared Mg-Al Oxides
Catalysts. 2023. V.13. N2. 334 :1-19. DOI: 10.3390/catal13020334 WOS Scopus РИНЦ AN OpenAlex
Hydrogen Production by N-Heterocycle Dehydrogenation over Pd Supported on Aerogel-Prepared Mg-Al Oxides
Catalysts. 2023. V.13. N2. 334 :1-19. DOI: 10.3390/catal13020334 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Dec 4, 2022 |
| Accepted: | Jan 28, 2023 |
| Published print: | Feb 2, 2023 |
| Published online: | Feb 2, 2023 |
Identifiers:
| Web of science: | WOS:000938335600001 |
| Scopus: | 2-s2.0-85148943605 |
| Elibrary: | 54361424 |
| Chemical Abstracts: | 2023:433294 |
| OpenAlex: | W4319158045 |