TY  - JOUR
N1  - Copyright of this article belongs to Elsevier Science.
ID  - open2569
UR  - https://www.sciencedirect.com/science/article/pii/S0360319919340571
IS  - 1
A1  - Devi, Pooja
A1  - Thakur, Anupama
A1  - Ghosh, Dibyendu
A1  - Prasad, E.Senthil
A1  - Sgivaprasad, S.M.
A1  - Sinha, R.K.
A1  - Kumar, Parveen
Y1  - 2020/01/01/
N2  - 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
PB  - Elsevier Science
JF  - International Journal of Hydrogen Energy 
VL  - 45
KW  - Bio-nanohybridHydrogenNanowall networkProton-pumpingPhotoanode
TI  - Boosting Photochemical Performance of GaN nanowall network photoanode with Bacteriorhodopsin
SP  - 103
EP  - 111
ER  -