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Influence of operating parameters on the bio‐photoelectrochemical cell for hydrogen and electricity production
Author(s) -
Chen QingYun,
Liu JianShan,
Liu Ya,
Liu XiaoHe,
Wang YunHai
Publication year - 2015
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12156
Subject(s) - photocathode , hydrogen production , anode , hydrogen , titanium dioxide , photoelectrochemical cell , internal resistance , chemistry , electricity generation , materials science , electrode , chemical engineering , power (physics) , physics , composite material , organic chemistry , thermodynamics , electrolyte , quantum mechanics , battery (electricity) , electron , engineering
Hydrogen and electricity can be produced simultaneously via a dual chamber bio‐photoelectrochemical cell. This cell is designed with a proton exchange membrane to separate the bio‐anode and the n‐type titanium dioxide photocathode. The effects of photocathode size, catholyte pH, illumination intensity, and external resistance on electricity and hydrogen production are investigated. By increasing the photocathode size or decreasing catholyte pH, the performance for hydrogen and electricity production increases. By using photocathode size of 3 cm 2 at neutral pH, the highest power density of 47.4 mW m −2 was obtained under 350 W light irradiation. Hydrogen production rate of 14.1 uL h −1 can be achieved with external resistance of 1,000 Ω. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1796–1800, 2015