Imperial College London
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ProfessorGeoffKelsall

Faculty of Engineering, Department of Chemical Engineering

Emeritus Professor of Electrochemical Engineering
 
 
 
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Contact

 

g.kelsall Website

 
 
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Location

 

RODH 302Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@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}
}
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RIS format (EndNote, RefMan)

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  -
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