Advances in Engineering Advances in Engineering features breaking research judged by Advances in Engineering advisory team to be of key importance in the Engineering field. Papers are selected from over 10,000 published each week from most peer reviewed journals.
M. Jakir Hossain, Hironori Tsunoyama, Miho Yamauchi, Nobuyuki Ichikuni, Tatsuya Tsukuda
Catalysis Today,Volume 183, Issue 1, March 2012
Abstract
Monodisperse PVP-stabilized Pt nanoparticles (PtNPs) with an average diameter of 1.4 ± 0.3 nm were efficiently produced via the complete reduction of Pt4+ ions by BH4− in a micromixer. Because of microfluidic mixing, hydrolytic decomposition of BH4− by the PtNPs formed in the initial stage of the reaction was suppressed, and hence, the PtNP yield was higher than that in the conventional batch mixing. The results of various spectroscopic analyses including EXAFS, FTIR of CO and XPS revealed that the microfluidically synthesized PtNPs were negatively charged and had a high population of edges and vertices on their surface.
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