Pd Active Sites on Covalent Triazine Frameworks for Catalytic Hydrogen Production from Formic Acid Full article
| Journal |
ACS Applied Nano Materials
ISSN: 2574-0970 |
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| Output data | Year: 2023, Volume: 6, Number: 14, Pages: 13551-13560 Pages count : 10 DOI: 10.1021/acsanm.3c02199 | ||||||||
| Tags | single-atom catalyst; Pd; formicacid decomposition; hydrogen production; covalenttriazine; frameworks; EXAFS | ||||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Science Foundation | 22-23-00608 |
| 2 | Ghent University | GOA010-17 |
Abstract:
Covalent triazine frameworks (CTF) have been recently applied as supports for metal catalysts for different reactions. Varying the nature of the CTF support could improve catalytic properties due to a change in the nature of metal active sites presented in the form of single atoms and dispersed nanoparticles. To understand these changes, for the first time, 1 wt % Pd catalysts supported on hatnCTF and acacCTF prepared from hexaazatrinaphthylene-tricarbonitrile and malonyldibenzonitrile, respectively, were tested in formic acid decomposition in the gas phase. The results were compared with those obtained for a Pd/g-C3N4 catalyst. The catalysts were characterized by high-angle annular dark-field/scanning transmission electron microscopy, X-ray absorption near edge structure/extended X-ray absorption fine structure and X-ray photoelectron spectroscopy. The activity of the Pd/hatnCTF catalyst was significantly higher than those for Pd/acacCTF and Pd/g-C3N4, providing the reaction at a lower temperature by ∼60 K. The high performance of this catalyst was attributed to single-atom Pd2+–C1N3 sites, which are the main active Pd species in this sample. The Pd/acacCTF sample contained single-atom Pd2+–O4 sites and metallic Pd nanoparticles, while the Pd/g-C3N4 sample contained mainly metallic Pd nanoparticles. The selectivity toward H2 was high (>98%) for all catalysts even at 573 K. The obtained results could be useful for the development of different applications of CTF materials.
Cite:
Bulushev D.A.
, Golub F.S.
, Trubina S.V.
, Zvereva V.V.
, Gerasimov E.Y.
, Prosvirin I.P.
, Navlani-García M.
, Jena H.S.
Pd Active Sites on Covalent Triazine Frameworks for Catalytic Hydrogen Production from Formic Acid
ACS Applied Nano Materials. 2023. V.6. N14. P.13551-13560. DOI: 10.1021/acsanm.3c02199 WOS Scopus РИНЦ AN OpenAlex
Pd Active Sites on Covalent Triazine Frameworks for Catalytic Hydrogen Production from Formic Acid
ACS Applied Nano Materials. 2023. V.6. N14. P.13551-13560. DOI: 10.1021/acsanm.3c02199 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | May 17, 2023 |
| Accepted: | Jul 5, 2023 |
| Published online: | Jul 18, 2023 |
| Published print: | Jul 28, 2023 |
Identifiers:
| Web of science: | WOS:001031260700001 |
| Scopus: | 2-s2.0-85166761282 |
| Elibrary: | 54372692 |
| Chemical Abstracts: | 2023:1476837 |
| OpenAlex: | W4384698524 |