From millimetres to metres: the critical role of current density distributions in photo-electrochemical reactor design

File Description SizeFormat 
EE-ART-10-2016-003036.R1 - Manuscript_08Dec16.docxAccepted version6.84 MBMicrosoft WordView/Open
EE-ART-10-2016-003036.R1 - Electronic Supplementary Information_08Dec16.docxSupporting information2.43 MBMicrosoft WordView/Open
Title: From millimetres to metres: the critical role of current density distributions in photo-electrochemical reactor design
Authors: Hankin, A
Bedoya-Lora, FE
Ong, CK
Alexander, JC
Petter, F
Kelsall, GH
Item Type: Journal Article
Abstract: 0.1×0.1 m2 tin-doped hematite photo-anodes were fabricated on titanium substrates by spray pyrolysis and deployed in a photo-electrochemical reactor for photo-assisted splitting of water into hydrogen and oxygen. Hitherto, photo-electrochemical research focussed largely on the fabrication, properties and behaviour of photo-electrodes, whereas both experimental and modelling results reported here address reactor scale-up issues of minimising inhomogeneities in spatial distributions of potentials, current densities and the resultant hydrogen evolution rates. Such information is essential for optimising the design and photon energy-to-hydrogen conversion efficiencies of photo-electrochemical reactors to progress their industrial deployment. The 2D and 3D reactor models presented here are coupled with a modified micro-kinetic model of oxygen evolution on hematite thin films both in the dark and when illuminated. For the first time, such a model is applied to a scaled-up photo-electrochemical reactor and validated against experimental data.
Issue Date: 21-Dec-2016
Date of Acceptance: 9-Dec-2016
URI: http://hdl.handle.net/10044/1/43118
DOI: https://dx.doi.org/10.1039/c6ee03036j
ISSN: 1754-5706
Publisher: Royal Society of Chemistry
Start Page: 346
End Page: 360
Journal / Book Title: Energy & Environmental Science
Volume: 10
Copyright Statement: © The Royal Society of Chemistry 2017
Sponsor/Funder: Engineering & Physical Science Research Council (E
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/K503733/1
EP/K027468/1
Keywords: Science & Technology
Physical Sciences
Technology
Life Sciences & Biomedicine
Chemistry, Multidisciplinary
Energy & Fuels
Engineering, Chemical
Environmental Sciences
Chemistry
Engineering
Environmental Sciences & Ecology
WATER-SPLITTING SYSTEMS
SOLAR FUEL GENERATORS
HYDROGEN-PRODUCTION
OXYGEN EVOLUTION
ALPHA-FE2O3
IRRADIATION
KINETICS
TITANIUM
DEVICE
CELLS
Energy
MD Multidisciplinary
Publication Status: Published
Appears in Collections:Faculty of Engineering
Chemical Engineering



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commonsx