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Applied Physics Letters / Volume 97 / Issue 9 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 97, 093108 (2010); http://dx.doi.org/10.1063/1.3480613 (3 pages)

Colloidal CdS nanorods decorated with subnanometer sized Pt clusters for photocatalytic hydrogen generation

Maximilian Berr1, Aleksandar Vaneski2, Andrei S. Susha2, Jessica Rodríguez-Fernández1, Markus Döblinger3, Frank Jäckel1, Andrey L. Rogach2, and Jochen Feldmann1

1Department of Physics, Photonics and Optoelectronics Group, Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Amalienstr. 54, D-80799 Munich, Germany
2Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
3Department of Chemistry and Biochemistry, CeNS, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13 (E), 81377 Munich, Germany

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(Received 19 June 2010; accepted 16 July 2010; published online 1 September 2010)

Colloidal CdS nanorods have been decorated with extremely small, subnanometer sized Pt clusters and used for photocatalytic hydrogen production. We also show highly selective decoration of CdS nanorods with uniform, relatively large (4.8 nm mean size) Pt nanoparticles, with a remarkably high (90%) yield of samples decorated with exactly one Pt particle per rod. Samples with large Pt particles show no increase in hydrogen evolution rate compared to small Pt clusters, which implies that efficient hydrogen production utilizing CdS nanorods with reduced amounts of Pt is possible.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

cadmium compounds, catalysis, colloidal crystals, II-VI semiconductors, lighting, nanofabrication, nanorods, photochemistry, semiconductor growth, ultraviolet spectra, visible spectra, wide band gap semiconductors

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3480613

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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