Web of Science: 7 cites, Scopus: 7 cites, Google Scholar: cites
Supported Mn₃O₄ nanosystems for hydrogen production through ethanol photoreforming
Barreca, Davide (Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia)
Bigiani, Lorenzo (Università degli studi di Padova. Dipartimento di Scienze Chimiche)
Monai, Mateo (Debye Institute for Nanomaterials Science)
Carraro, Giorgio (Università degli studi di Padova. Dipartimento di Scienze Chimiche)
Gasparotto, Alberto (Università degli studi di Padova. Dipartimento di Scienze Chimiche)
Sada, Cinzia (Università degli studi di Padova. Dipartimento di Fisica e Astronomia)
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia)
Grau Carbonell, Albert (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Maccato, Chiara (Università degli studi di Padova. Dipartimento di Scienze Chimiche)
Fornasiero, Paolo (Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia)

Data: 2018
Resum: Photoreforming promoted by metal oxide nanophotocatalysts is an attractive route for clean and sustainable hydrogen generation. In the present work, we propose for the first time the use of supported MnO nanosystems, both pure and functionalized with Au nanoparticles (NPs), for hydrogen generation by photoreforming. The target oxide systems, prepared by chemical vapor deposition (CVD) and decorated with gold NPs by radio frequency (RF) sputtering, were subjected to a thorough chemico-physical characterization and utilized for a proof-of-concept H₂ generation in aqueous ethanolic solutions under simulated solar illumination. Pure MnO nanosystems yielded a constant hydrogen production rate of 10 mmol h⁻¹ m⁻² even for irradiation times up to 20 h. The introduction of Au NPs yielded a significant enhancement in photocatalytic activity, which decreased as a function of irradiation time. The main phenomena causing the Au-containing photocatalyst deactivation have been investigated by morphological and compositional analysis, providing important insights for the design of Mn₃O₄-based photocatalysts with improved performances.
Ajuts: MINECO/ENE2017-85087-C3
MINECO/SEV-2013-0295
AGAUR/2017/SGR-327
Drets: Tots els drets reservats.
Llengua: Anglès
Document: article ; recerca ; Versió acceptada per publicar
Matèria: Chemical vapor depositions (CVD) ; Compositional analysis ; Hydrogen generations ; Hydrogen production rate ; Photocatalytic activities ; Physical characterization ; Radio-frequency sputtering ; Solar illumination
Publicat a: Langmuir, Vol. 34, issue 15 (April 2018) , p. 4568-4574, ISSN 1520-5827

DOI: 10.1021/acs.langmuir.8b00642


Postprint
27 p, 2.2 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Nanociència i Nanotecnologia (ICN2)
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2019-11-19, darrera modificació el 2021-06-06



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