Imperial College London
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ProfessorGeoffKelsall

Faculty of Engineering, Department of Chemical Engineering

Emeritus Professor of Electrochemical Engineering
 
 
 
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Contact

 

g.kelsall Website

 
 
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Location

 

RODH 302Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hankin:2017:10.1039/c6ee03036j,
author = {Hankin, A and Bedoya-Lora, FE and Ong, CK and Alexander, JC and Petter, F and Kelsall, GH},
doi = {10.1039/c6ee03036j},
journal = {Energy and Environmental Science},
pages = {346--360},
title = {From millimetres to metres: the critical role of current density distributions in photo-electrochemical reactor design},
url = {http://dx.doi.org/10.1039/c6ee03036j},
volume = {10},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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.
AU  - Hankin,A
AU  - Bedoya-Lora,FE
AU  - Ong,CK
AU  - Alexander,JC
AU  - Petter,F
AU  - Kelsall,GH
DO  - 10.1039/c6ee03036j
EP  - 360
PY  - 2017///
SN  - 1754-5692
SP  - 346
TI  - From millimetres to metres: the critical role of current density distributions in photo-electrochemical reactor design
T2  - Energy and Environmental Science
UR  - http://dx.doi.org/10.1039/c6ee03036j
UR  - https://pubs.rsc.org/en/content/articlelanding/2017/EE/C6EE03036J
UR  - http://hdl.handle.net/10044/1/43118
VL  - 10
ER  -
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