Huang, H;
Feng, J;
Fu, H;
Zhang, B;
Fang, T;
Qian, Q;
Huang, Y;
... Zou, Z; + view all
(2018)
Improving solar water-splitting performance of LaTaON_{2} by bulk defect control and interface engineering.
Applied Catalysis B: Environmental
, 226
pp. 111-116.
10.1016/j.apcatb.2017.12.033.
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Abstract
Particle-assembled photoanode films for solar water splitting are often subjected to serious electron-hole recombination, thus exhibiting low solar-to-hydrogen efficiency. The construction of efficient particle-assembled photoanode remains a challenge. Here, taking LaTaON_{2} particle-assembled photoanode as a model, bulk defect control and interface engineering were introduced to reduce the electron-hole recombination. As a result, the solar photocurrent of LaTaON_{2} achieves 2.1 mA cm^{-2} at 1.6 V_{RHE} after the modification of CoO_{x}, an order of magnitude greater than the previously-reported value of 0.15 mA cm^{-2}. This dramatic enhancement is mainly ascribed to increased bulk electrical conductivity, and less back reactions on the conductive substrates, as well as facilitated hole transfer to reaction sites. This study may provide guidelines for the construction of highly efficient particle-assembled photoanode films.
| Type: | Article |
|---|---|
| Title: | Improving solar water-splitting performance of LaTaON_{2} by bulk defect control and interface engineering |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.apcatb.2017.12.033 |
| Publisher version: | https://doi.org/10.1016/j.apcatb.2017.12.033 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10086223 |
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