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http://hdl.handle.net/2445/182419
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DC Field | Value | Language |
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dc.contributor.author | Bigiani, Lorenzo | - |
dc.contributor.author | Gasparotto, Alberto | - |
dc.contributor.author | Andreu Arbella, Teresa | - |
dc.contributor.author | Verbeeck, Johan | - |
dc.contributor.author | Sada, Cinzia | - |
dc.contributor.author | Modin, Evgeny | - |
dc.contributor.author | Levedev, Oleg I. | - |
dc.contributor.author | Morante i Lleonart, Joan Ramon | - |
dc.contributor.author | Barreca, Davide | - |
dc.contributor.author | Maccato, Chiara | - |
dc.date.accessioned | 2022-01-17T13:51:14Z | - |
dc.date.available | 2022-01-17T13:51:14Z | - |
dc.date.issued | 2020-09-24 | - |
dc.identifier.issn | 2366-7486 | - |
dc.identifier.uri | http://hdl.handle.net/2445/182419 | - |
dc.description.abstract | Earth-abundant and eco-friendly manganese oxides are promising platforms for the oxygen evolution reaction (OER) in water electrolysis. Herein, a versatile and potentially scalable route to gold-decorated manganese oxide-based OER electrocatalysts is reported. In particular, MnxOy(MnO2, Mn2O3) host matrices are grown on conductive glasses by plasma assisted-chemical vapor deposition (PA-CVD), and subsequently functionalized with gold nanoparticles (guest) as OER activators by radio frequency (RF)-sputtering. The final selective obtainment of MnO2- or Mn2O3-based systems is then enabled by annealing under oxidizing or inert atmosphere, respectively. A detailed material characterization evidences the formation of high-purity Mn(x)O(y)dendritic nanostructures with an open morphology and an efficient guest dispersion into the host matrices. The tailoring of Mn(x)O(y)phase composition and host-guest interactions has a remarkable influence on OER activity yielding, for the best performing Au/Mn(2)O(3)system, a current density of approximate to 5 mA cm(-2)at 1.65 V versus the reversible hydrogen electrode (RHE) and an overpotential close to 300 mV at 1 mA cm(-2). Such results, comparing favorably with literature data on manganese oxide-based materials, highlight the importance of compositional control, as well as of surface and interface engineering, to develop low-cost and efficient anode nanocatalysts for water splitting applications. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Wiley-VCH | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1002/adsu.202000177 | - |
dc.relation.ispartof | Advanced Sustainable Systems, 2020, vol. 5, num. 11 | - |
dc.relation.uri | https://doi.org/10.1002/adsu.202000177 | - |
dc.rights | (c) Wiley-VCH, 2020 | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Òxid de magnesi | - |
dc.subject.classification | Oxigen | - |
dc.subject.classification | Nanoestructures | - |
dc.subject.other | Magnesium oxide | - |
dc.subject.other | Oxygen | - |
dc.subject.other | Nanostructures | - |
dc.title | Au-Manganese Oxide Nanostructures by a Plasma-Assisted Process as Electrocatalysts for Oxygen Evolution: A Chemico-Physical Investigation | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 706252 | - |
dc.date.updated | 2022-01-17T13:51:14Z | - |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/H2020/823717/EU//ESTEEM3 | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) Publicacions de projectes de recerca finançats per la UE |
Files in This Item:
File | Description | Size | Format | |
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706252.pdf | 1.05 MB | Adobe PDF | View/Open |
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