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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Ong, C. K. Alexander, J. C. Bedoya-Lora, F. E. Petter, F. Hankin, A. Kelsall, G. H. |
| Copyright Year | 2017 |
| 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. |
| Starting Page | 346 |
| Ending Page | 360 |
| Page Count | 15 |
| File Format | HTM / HTML PDF |
| ISSN | 17545692 |
| Volume Number | 10 |
| Issue Number | 1 |
| Journal | Energy & Environmental Science |
| DOI | 10.1039/c6ee03036j |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Hematite Titanium Pyrolysis Hydrogen Oxygen Photon Three-dimensional space Oxygen evolution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering |
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