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In Situ Synthesis of Highly Dispersed and Ultrafine Metal Nanoparticles from Chalcogels
- Liu, Jian, He, Kai, Wu, Weiqiang, Song, Tze-Bin, Kanatzidis, Mercouri G.
- Journal of the American Chemical Society 2017 v.139 no.8 pp. 2900-2903
- chemical reduction, nanoparticles, p-nitrophenol, platinum, synthesis
- We report a unique reaction type for facile synthesis of ultrafine and well-dispersed Pt nanoparticles supported on chalcogel surfaces. The nanoparticles are obtained by in situ Pt²⁺ reduction of a chalcogel network formed by the metathesis reaction between K₂PtCl₄ and Na₄SnS₄. The rapid catalytic ability of the chalcogel-supported Pt nanoparticles is demonstrated in a recyclable manner by using 4-nitrophenol reduction as a probe reaction.