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Platinum-free photoelectrochemical water splitting

Paper ID Volume ID Publish Year Pages File Format Full-Text
50414 46794 2014 3 PDF Available
Title
Platinum-free photoelectrochemical water splitting
Abstract

•Platinum free electrocatalyst for water splitting•Easy synthesis of Cu2S on brass counter electrode•Quantum dot sensitized photoanode•Panchromatic sensitization using a ZnS/CdSe/CdS/nc-TiO2/FTO photoanode

Hydrogen can be produced by photoelectrochemical water splitting in the presence of S2 −/SO3 2− sacrificial agent by using a Cu2S electrocatalyst grown on brass by chemical treatment in HCl and polysulfide solution. Photoelectrochemical behavior of Cu2S/brass was equivalent to that of Pt nanoparticles mixed with carbon black and deposited on a carbon cloth electrode, i.e. the electrocatalyst typically used in fuel cells and electrolyzers. Thus photoelectrochemical water splitting can be achieved in a Pt-free device. The photoanode was made of nanocrystalline titania on FTO sensitized by quantum dots. Combined ZnS/CdSe/CdS quantum dots were by far more effective for hydrogen production than single-component CdS sensitizer.

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Keywords
Quantum dot sensitized photoanode; Water splitting; CdS; CdSe; ZnS; Cu2S
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Platinum-free photoelectrochemical water splitting
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 43, 5 January 2014, Pages 72–74
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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