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New hydrogen-producing photocatalysts—A combinatorial search

Paper ID Volume ID Publish Year Pages File Format Full-Text
48507 46510 2007 12 PDF Available
Title
New hydrogen-producing photocatalysts—A combinatorial search
Abstract

A high-throughput (HT) method for the discovery of new heterogeneous catalysts for photocatalytic hydrogen production from aqueous methanol solutions is presented. The HT workflow includes the preparation of libraries containing multi-component metal oxides following a modified sol–gel route, the irradiation of catalyst suspensions with a custom illumination setup and fast sequential product gas analysis by gas chromatography to evaluate catalyst performance. The influence of reaction parameters, as e.g. catalyst grain size, light intensity on the results is discussed. Results of the screening of diverse mixed metal oxide libraries are shown. An evolutionary search strategy involving doping of active oxides and screening of variations in material compositions was applied to discover new photocatalysts. As a new lead structure, an aluminium–lead–bismuth-oxide has been discovered. Further activity increases have been achieved through doping.

Keywords
Photocatalysis; Heterogeneous catalysis; High-throughput; Combinatorial chemistry; Hydrogen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 76, Issues 1–2, 30 October 2007, Pages 146–157
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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