Effects of the Carbon Support Doping with Nitrogen for the Hydrogen Production from Formic Acid over Ni Catalysts Full article
| Journal |
Energies
ISSN: 1996-1073 |
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| Output data | Year: 2019, Volume: 12, Number: 21, Article number : 4111, Pages count : 10 DOI: 10.3390/en12214111 | ||||||
| Tags | nickel catalyst; porous carbon support; nitrogen doping; formic acid decomposition; hydrogen production | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 16-13-00016 |
Abstract:
Porous nitrogen-doped and nitrogen-free carbon materials possessing high specific surface
areas (400–1000 m2 g-1) were used for deposition of Ni by impregnation with nickel acetate followed by reduction. The nitrogen-doped materials synthesized by decomposition of acetonitrile at 973, 1073, and 1173 K did not differ much in the total content of incorporated nitrogen (4–5 at%), but differed in the ratio of the chemical forms of nitrogen. An X-ray photoelectron spectroscopy study showed that the rise in the synthesis temperature led to a strong growth of the content of graphitic nitrogen on the support accompanied by a reduction of the content of pyrrolic nitrogen. The content of pyridinic nitrogen did not change significantly. The prepared nickel catalysts supported on nitrogen-doped carbons showed by a factor of up to two higher conversion of formic acid as compared to that of the nickel catalyst supported on the nitrogen-free carbon. This was related to stabilization of Ni in the state of single Ni2+ cations or a few atoms clusters by the pyridinic nitrogen sites. The nitrogen-doped nickel catalysts possessed a high stability in the reaction at least within 5 h and a high selectivity to hydrogen (97%).
Cite:
Nishchakova A.D.
, Bulushev D.A.
, Stonkus O.A.
, Asanov I.P.
, Ishchenko A.V.
, Okotrub A.V.
, Bulusheva L.G.
Effects of the Carbon Support Doping with Nitrogen for the Hydrogen Production from Formic Acid over Ni Catalysts
Energies. 2019.
V.12. N21. 4111
:1-10. DOI: 10.3390/en12214111
WOS
Scopus
РИНЦ
AN
OpenAlex
Effects of the Carbon Support Doping with Nitrogen for the Hydrogen Production from Formic Acid over Ni Catalysts
Energies. 2019.
V.12. N21. 4111
:1-10. DOI: 10.3390/en12214111
WOS
Scopus
РИНЦ
AN
OpenAlex
Files:
Full text from publisher
Dates:
| Submitted: | Sep 30, 2019 |
| Accepted: | Oct 23, 2019 |
| Published online: | Oct 28, 2019 |
| Published print: | Nov 1, 2019 |
Identifiers:
| Web of science: | WOS:000512340000090 |
| Scopus: | 2-s2.0-85075569939 |
| Elibrary: | 43208195 |
| Chemical Abstracts: | 2020:964482 |
| OpenAlex: | W2981491641 |