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@article{Bedoya-Lora:2016:10.1016/j.elecom.2016.04.010,
author = {Bedoya-Lora, F and Hankin, A and Kelsall, GH},
doi = {10.1016/j.elecom.2016.04.010},
journal = {Electrochemistry Communications},
pages = {19--22},
title = {Photo-electrochemical Hydrogen Sulfide Splitting using SnIV-doped Hematite Photo-anodes},
url = {http://dx.doi.org/10.1016/j.elecom.2016.04.010},
volume = {68},
year = {2016}
}
TY - JOUR
AB - Spray-pyrolysed SnIV-doped α-Fe2O3 photo-anodes were used for photo-assisted splitting of HS- ions in alkaline aqueous solutions, producing polysulfide (Sn2-) ions together with hydrogen at the cathode. Subsequent aerial oxidation of polysulfide could be used to produce elemental sulfur. At an applied electrode potential of 1.07 V (RHE) and an irradiance of 5.6 kW m-2, stable photocurrents of ca. 11 A m-2 (210-3 A W-1) were recorded over 75 hours, polysulfide concentrations increasing linearly with time. Despite being predicted thermodynamically to form iron sulfide(s) in sulfide solutions, such photo-anodes appeared to be stable. In comparison with conventional water splitting under alkaline conditions, the coupled processes of hydrogen sulfide ion oxidation and water reduction had a lower energy requirement.
AU - Bedoya-Lora,F
AU - Hankin,A
AU - Kelsall,GH
DO - 10.1016/j.elecom.2016.04.010
EP - 22
PY - 2016///
SN - 1388-2481
SP - 19
TI - Photo-electrochemical Hydrogen Sulfide Splitting using SnIV-doped Hematite Photo-anodes
T2 - Electrochemistry Communications
UR - http://dx.doi.org/10.1016/j.elecom.2016.04.010
UR - http://hdl.handle.net/10044/1/31260
VL - 68
ER -