Imperial College London
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Dr Robert Hoye, FIMMM CEng CSci

Faculty of Engineering, Department of Materials

Honorary Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 6048r.hoye Website

 
 
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Location

 

2.27Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Andrei:2022:10.1038/s41563-022-01262-w,
author = {Andrei, V and Jagt, R and Rahaman, M and Lari, L and Lazarov, V and MacManus-Driscoll, J and Hoye, R and Reisner, E},
doi = {10.1038/s41563-022-01262-w},
journal = {Nature Materials},
pages = {864--868},
title = {Long-term solar water and CO2 splitting with photoelectrochemical BiOI-BiVO4 tandems},
url = {http://dx.doi.org/10.1038/s41563-022-01262-w},
volume = {21},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Photoelectrochemical (PEC) devices have been developed for direct solar fuel production, but the limited stability of submerged light absorbers hampers their commercial prospects.1,2 Here, we demonstrate photocathodes with an operational H2 evolution activity over weeks, by integrating a BiOI light absorber into a robust, oxide-based architecture with a graphite paste conductive encapsulant. In this case, the activity towards proton and CO2 reduction is mainly limited by catalyst degradation. We also introduce multiple-pixel devices as an innovative design principle for PEC systems, displaying superior photocurrents, onset biases and stability over corresponding conventional single-pixel devices. Accordingly, PEC tandem devices comprised of multiple-pixel BiOI photocathodes and BiVO4 photoanodes can sustain bias-free water splitting for 240 h, while devices with a Cu92In8 alloy catalyst demonstrate unassisted syngas production.
AU  - Andrei,V
AU  - Jagt,R
AU  - Rahaman,M
AU  - Lari,L
AU  - Lazarov,V
AU  - MacManus-Driscoll,J
AU  - Hoye,R
AU  - Reisner,E
DO  - 10.1038/s41563-022-01262-w
EP  - 868
PY  - 2022///
SN  - 1476-1122
SP  - 864
TI  - Long-term solar water and CO2 splitting with photoelectrochemical BiOI-BiVO4 tandems
T2  - Nature Materials
UR  - http://dx.doi.org/10.1038/s41563-022-01262-w
UR  - https://www.nature.com/articles/s41563-022-01262-w
UR  - http://hdl.handle.net/10044/1/96883
VL  - 21
ER  -
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