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Photoelectrochemical Water‐Splitting Using CuO‐Based Electrodes for Hydrogen Production: A Review

Abstract:
[EN] Two novel three-dimensional metal-organic frameworks(MOFs)based on the photoactive pyrene tetraphosphonate ligand and copper(denoted as IEF-8 and IEF-9) have been hydrothermally synthesizedand fully characterized (XRD, FTIR, TGA, SEM, XPS, etc.). Their crystalstructures were unveiled by single-crystal X-ray diffraction. Remarkably,these materials exhibit coordinatively unsaturated copper (II) sites,free -PO3H2 and -PO3H acidic groups, and good thermal and chemical stability. Further,their optoelectronic characterization evidenced a photoresponse suitablefor photocatalysis. In this sense, the photocatalytic activity ofpyrene phosphonate MOFs was evaluated for the first time for the challenginghydrogen evolution reaction. In particular, IEF-8 exhibited a catalyticefficiency higher than that of the benchmarked Ti carboxylate photocatalystMIL-125-(Ti)-NH2, producing 1800 mu mol center dot g(-1) after 22 h under UV-vis irradiation in theabsence of any co-catalyst. Furthermore, this material presented goodreusability (at least up to 4 cycles), preserving its activity andstructural integrity.The authors acknowledge the Maria de Maeztu IMDEA Energy Institute, the M-ERA-NET C-MOF-cell project, the Retos Investigacion MOFSEIDON project (PID2019-104228RB-I00 funded by MCIN/AEI/10.13039/501100011033 and by the European Union, MICIU-AEI/FEDER, UE), and the H2-MOF project (TED2021-132092B-C21 funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR). They thank "Comunidad de Madrid" and European Regional Development Fund-FEDER 2014-2020-OE REACT-UE 1for their financial support to the VIRMOF-CM project associated to R & D projects in response to COVID-19. S.N. thanks the support of grant PID2021-123856OBI00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe.Salcedo-Abraira, P.; Serrano Nieto, R.; Biglione, C.; Cabrero-Antonino, M.; Vilela, SM.; Babaryk, AA.; Tilve-Martínez, D.... (2023). Two Cu-Based Phosphonate Metal-Organic Frameworks as Efficient Water-Splitting Photocatalysts. Chemistry of Materials. 35(11):4211-4219. https://doi.org/10.1021/acs.chemmater.3c0005442114219351
Publication status:
Published
Peer review status:
Peer reviewed

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Author
ORCID:
0000-0001-8334-085X
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Author
ORCID:
0000-0002-7561-9815
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Author
ORCID:
0000-0002-2064-1783
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ORCID:
0000-0001-5500-0743
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Institution:
University of Oxford
Role:
Author
ORCID:
0000-0003-2353-3910


Publisher:
Wiley
Journal:
Advanced Materials More from this journal
Volume:
33
Issue:
33
Pages:
e2007285-e2007285
Publication date:
2021-06-12
DOI:
EISSN:
1521-4095
ISSN:
0935-9648


Language:
English
Keywords:
Pubs id:
2429514
Local pid:
pubs:2429514
Source identifiers:
W3166417682
Deposit date:
2026-06-05
ARK identifier:
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