[PMID]: | 29193978 |
[Au] Autor: | Balestri D; Roux Y; Mattarozzi M; Mucchino C; Heux L; Brazzolotto D; Artero V; Duboc C; Pelagatti P; Marchiò L; Gennari M |
[Ad] Endereço: | Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma , Parco Area delle Scienze 17A, 43124 Parma, Italy. |
[Ti] Título: | Heterogenization of a [NiFe] Hydrogenase Mimic through Simple and Efficient Encapsulation into a Mesoporous MOF. |
[So] Source: | Inorg Chem;56(24):14801-14808, 2017 Dec 18. |
[Is] ISSN: | 1520-510X |
[Cp] País de publicação: | United States |
[La] Idioma: | eng |
[Ab] Resumo: | In the quest for new, efficient, and noble-metal-free H -evolution catalysts, hydrogenase enzymes are a source of inspiration. Here, we describe the development of a new hybrid material based on a structural and functional [NiFe]-hydrogenase model complex (NiFe) incorporated into the Zr-based MOF PCN-777. The bulk NiFe@PCN-777 material was synthesized by simple encapsulation. Characterization by solid-state NMR and IR spectroscopy, SEM-EDX, ICP-OES, and gas adsorption confirmed the inclusion of the guest. FTO-supported thin films of the NiFe@PCN-777 composite were obtained by electrophoretic deposition of the bulk material and characterized by SEM-EDX, ICP-OES, and cyclic voltammetry. The average surface concentration of electroactive NiFe catalyst in the film was found to be ∼9.6 × 10 mol cm , implying that a surprisingly high fraction (37%) of NiFe units incorporated in the MOF are electroactive. By cyclic voltammetry, we showed that NiFe maintains its electrocatalytic capabilities for H reduction inside the MOF cavities, even if under controlled-potential electrolysis conditions the activity of NiFe cannot be discerned from that of free PCN-777 and FTO. |
[Mh] Termos MeSH primário: |
Materiais Biomiméticos/química Hidrogenase/química Ferro/química Estruturas Metalorgânicas/química Níquel/química Zircônio/química
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[Mh] Termos MeSH secundário: |
Catálise Técnicas Eletroquímicas Modelos Moleculares Oxirredução Prótons
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[Pt] Tipo de publicação: | JOURNAL ARTICLE |
[Nm] Nome de substância:
| 0 (Metal-Organic Frameworks); 0 (Protons); 7OV03QG267 (Nickel); C6V6S92N3C (Zirconium); E1UOL152H7 (Iron); EC 1.12.- (nickel-iron hydrogenase); EC 1.12.7.2 (Hydrogenase) |
[Em] Mês de entrada: | 1802 |
[Cu] Atualização por classe: | 180228 |
[Lr] Data última revisão:
| 180228 |
[Sb] Subgrupo de revista: | IM |
[Da] Data de entrada para processamento: | 171202 |
[St] Status: | MEDLINE |
[do] DOI: | 10.1021/acs.inorgchem.7b01824 |
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