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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Celorrio, Verónica
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysiscitations
- 2024Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysiscitations
- 2022Structure-Activity Relationships in Highly Active Platinum-Tin MFI-type Zeolite Catalysts for Propane Dehydrogenationcitations
- 2018Insights into the durability of Co-Fe spinel oxygen evolution electrocatalystscitations
- 2018Effects of heat treatment atmosphere on the structure and activity of Pt3Sn nanoparticle electrocatalysts:a characterisation case studycitations
- 2018AMnO3 (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalystscitations
- 2017YFeO3 Photocathodes for Hydrogen Evolutioncitations
- 2017YFeO 3 Photocathodes for Hydrogen Evolutioncitations
- 2016Influence of thermal treatments on the stability of Pd nanoparticles supported on graphitised ordered mesoporous carbonscitations
- 2015Surface Activation of Pt Nanoparticles Synthesised by "Hot Injection" in the Presence of Oleylaminecitations
- 2015Fast One-Pot Synthesis of MoS2/Crumpled Graphene p-n Nanonjunctions for Enhanced Photoelectrochemical Hydrogen Productioncitations
- 2014Fuel cell performance of Pt electrocatalysts supported on carbon nanocoilscitations
- 2012Electrocatalytic Properties of Strained Pd Nanoshells at Au Nanostructures: CO and HCOOH Oxidationcitations
- 2010Modification of the properties of carbon nanocoils by different treatments in liquid phasecitations
Places of action
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article
YFeO3 Photocathodes for Hydrogen Evolution
Abstract
The behavior of YFeO3 thin-film electrodes under illumination is investigated for the first time. YFeO3 thin films on F-doped SnO2 (FTO) electrodes were prepared by two different methods (A) deposition of nanoparticles synthesized by the so-called ionic liquid route at 1000° C followed by sintering at 400° C and (B) spin coating of a sol-gel precursor followed by a heat treatment at 640° C. Method A provides highly texture films with exquisite orthorhombic phase purity and a direct band gap transition at 2.45 eV. On the other hand, method B results in very compact and amorphous films. XPS confirmed a Fe3+ oxidation state in both films, with a surface composition ratio of 70:30 Y:Fe. Both materials exhibit cathodic photocurrent responses arising from hydrogen evolution in alkaline solutions with an onset potential of 1.05 V vs. RHE. The complex behavior of the photoresponses is rationalized in terms of recombination losses, band edge energy tails and hindered transport across the oxide thin film. ; VC gratefully acknowledges the Royal Society and the UK National Academy by the support through the Newton International Fellows program and EPSRC via the UK Catalysis Hub (EP/K014706/1 and EP014714/1). DT and DJF is grateful to EPSRC for funding through the PVTEAM Programme (EP/L017792/1), as well as to the Institute of Advanced Studies of the University of Bristol for the Research Fellowship. Electron microscopy studies were carried out both at the SSTTI of The University of Alicante and at the Chemical Imaging Facility of the University of Bristol with equipment partly funded by EPSRC (EP/K035746/1 and EP/M028216/1). MIDG is grateful to the Doctorate School of the University of Alicante for a travel grant. The Alicante team acknowledges the Spanish Ministry of Economy and Competitiveness for financial support through project MAT2015-71727-R (FONDOS FEDER).