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Title of Journal: J Nanopart Res

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Abbravation: Journal of Nanoparticle Research

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Springer Netherlands

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1572-896X

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Generation of mixed metallic nanoparticles from im

Authors: N S Tabrizi Q Xu N M van der Pers A SchmidtOtt
Publish Date: 2009/02/26
Volume: 12, Issue: 1, Pages: 247-259
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Abstract

Using a spark discharge system we synthesized AgCu Pt–Au and CuW mixed particles a few nanometers in size These combinations have miscibility gaps in the bulk form The microsecond sparks between electrodes consisting of the respective materials form a vapour cloud Very fast quenching of the mixed vapour results in the formation of nanoparticles To investigate the morphology size composition and structure of the particles TEM XRD analyses and EDS elemental mapping were performed on the samples The average compositions were measured by ICP and the specific surface areas were determined by the BET Our method produces AgCu and Au–Pt mixed crystalline phases that do not exist in macroscopic samples For CuW alloying is not observed and the metals are mixed on a scale of about 1 nmThe authors would like to express their gratitude to Miren Echave Elustondo for carrying out particle size distribution measurements and Sander Brouwer for his assistance in BET measurements The Project is partially funded by the Delft Center of Sustainable Energy DISE

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