Photoelectrochemical conversion of toluene to methylcyclohexane as an organic hydride by Cu 2ZnSnS 4-based photoelectrode assemblies
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Chemical Science Program
KAUST Catalysis Center (KCC)
Catalysis for Energy Conversion (CatEC)
Permanent link to this recordhttp://hdl.handle.net/10754/562091
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AbstractDirect photoelectrochemical conversion of toluene (TL) to methylcyclohexane (MC) with water has been examined as an organic hydride conversion using light irradiation. The production of MC from TL was observed on Pt/CdS/Cu 2ZnSnS 4/Mo photoelectrodes with anion-type ionomer membrane assemblies. A cathodic photocurrent was observed below 0.7 V vs RHE (V RHE) in 0.1 M Na 2SO 4/NaOH (pH 9.5) aqueous solution, and an apparent photocurrent density of 0.5 mA cm -2 was obtained at 0 V RHE under the irradiation of a 300 W Xe lamp with a 420 nm cutoff filter. The yield of MC was measured by gas chromatography, and an 88% faradaic efficiency was estimated. This study suggests the possibility of direct energy conversion from solar energy to MC as an energy carrier of organic hydrides. © 2012 American Chemical Society.
SponsorsP.W. is a Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellow. This work is based on collaborative research with JX Nippon Oil & Energy Corporation and was supported in part by a Grant-in-Aid for Specially Promoted Research (23000009) from JSPS. This work was carried out under the international exchange program of the A3 Foresight Program of JSPS.
PublisherAmerican Chemical Society (ACS)
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