Boosting Photochemical Performance of GaN nanowall network photoanode with Bacteriorhodopsin
IR@IMTECH: CSIR-Institute of Microbial Technology, Chandigarh
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| Title |
Boosting Photochemical Performance of GaN nanowall network photoanode with Bacteriorhodopsin
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| Creator |
Devi, Pooja
Thakur, Anupama Ghosh, Dibyendu Prasad, E.Senthil Sgivaprasad, S.M. Sinha, R.K. Kumar, Parveen |
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| Subject |
QR Microbiology
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| Description |
The ever-increasing demand for renewable and clean energy sources has prompted the development of novel materials for photoelectrochemical (PEC) water splitting, but efficient solar to hydrogen conversion remains a big challenge. In this work, we report a bio-nanohybrid strategy in a photo-system to simultaneously enhance the charge separation and water splitting efficiency of photoanode (PA) by introducing Bacteriorhodopsin (bR), a natural proton pumping photosystem and GaN nanowall network (NWN), a direct band gap and corrosion-resistant semiconductor. The experimental study reveals that this combination of bR and GaN NWN has huge potential as a light-activated sensitizer as well as proton pumping source to achieve enhance photocurrent density in hydrogen evolution reaction (HER). Consequently, this synergistic effect in bR/GaN NWN PA gives rise to largely enhanced applied bias photon-to-current efficiency (ABPE) ~7.8% and photocurrent density (28.74 mA/cm2 at 1.0 V vs RHE). It is worth mentioning that the photocurrent density of bR/GaN NWN, to the best of our knowledge, is superior to previously reported bR-based PAs and bio-photoelectric devices reported till today for solar-to-hydrogen fuel
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| Publisher |
Elsevier Science
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| Date |
2020-01-01
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| Type |
Article
PeerReviewed |
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| Relation |
https://www.sciencedirect.com/science/article/pii/S0360319919340571
http://crdd.osdd.net/open/2569/ |
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| Identifier |
Devi, Pooja and Thakur, Anupama and Ghosh, Dibyendu and Prasad, E.Senthil and Sgivaprasad, S.M. and Sinha, R.K. and Kumar, Parveen (2020) Boosting Photochemical Performance of GaN nanowall network photoanode with Bacteriorhodopsin. International Journal of Hydrogen Energy , 45 (1). pp. 103-111.
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