Vladimir Guterman, Kirill Paperzh, Ilya Kantsypa, Elena Vetrova, Anatoly Metelitsa, Ilya Pankov, Yulia Pankova
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Kinetics of platinum nanoparticles nucleation in polyol synthesis over a wide pH range and properties of Pt/C catalysts
This article presents a novel, facile method for studying the kinetics of liquid-phase synthesis of precious metal nanoparticles. The method is particularly suitable for use in concentrated solutions and under conditions involving gas purging and medium stirring. It is based on the continuous measurement of changes in the solution’s color components and the potential of an indicator electrode during the synthesis process. The method was applied to investigate the effect of solution pH on the kinetics of polyol synthesis of Pt nanoparticles and Pt/C electrocatalysts. The obtained Pt/C electrocatalysts demonstrate high structural-morphological and electrochemical characteristics, surpassing commercial analogs. The simplicity and efficiency of the “kinetic control” technique makes it promising for use in various liquid-phase synthesis technologies.
期刊介绍：
Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.
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