Malka R Bromberg et al 2009 J. Phys.: Conf. Ser. 190 012155 doi:10.1088/1742-6596/190/1/012155
Malka R Bromberg1, Anitha Patlolla2, Rebecca Segal1, Yishai Feldman3, Qi Wang1, Zafar Iqbal2 and Anatoly I Frenkel1
Show affiliationsWe prepared several samples of carbon-nanotube-supported Pt nanoparticles that are potentially promising electrocatalysts for hydrogen fuel cells. Commercially obtained single-walled carbon nanotubes (SWNTs) were characterized by Raman Spectroscopy, SEM, TEM, EDS, and XANES. This multi-technique characterization allowed us to quantify the size and composition of metal impurities (Mo, Co) in SWNTs, to choose the best method to remove them, and characterize the effectiveness of their removal. After synthesizing a "nanopaper" (10–20 micrometer thick, free standing sheets of self-assembled SWNTs) we decorated it with Pt nanoparticles by electroless deposition. Formation of Pt nanoparticles was verified by EXAFS, and quantitative information about their size and structure was obtained.
81.16.-c Methods of nanofabrication and processing
78.30.-j Infrared and Raman spectra
78.67.Bf Nanocrystals and nanoparticles
81.07.-b Nanoscale materials and structures: fabrication and characterization
Issue 1 (2009)
Malka R Bromberg et al 2009 J. Phys.: Conf. Ser. 190 012155
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