Choi, Wooyong Kim, Jong Min Hwang, Chang-Kyu Choe, Myeonggi Baek, Seongheon Ban, Hyeong Woo Gu, Da Hwi Jeong, Hyewon Chae, Keun Hwa Lim, Youngjoon Lee, Zonghoon Kim, Jin Young Son, Jae Sung 2024-01-19T17:33:23Z 2024-01-19T17:33:23Z 2021-09-05 2020-05 2040-3364 https://pubs.kist.re.kr/handle/201004/118667 Herein, we report for the first time the successful preparation of thiometallate-based precursors for use in a bottom-up synthetic process of supported Pt and PtNi nanoparticle catalyst. This precursor enabled the monodisperse synthesis of supported Pt nanoparticles and the in situ formation of S, which were caught directly in a collection system by the nanoparticle synthetic processes consisting of impregnation and thermal processes. S is proven to act as a capping agent in generating highly stable nanoparticles with the size ranging from 2 nm to 3 nm and further favors the formation of monodispersed particles by solid-state digestive ripening. The proposed synthetic methodology can be applied to high-quality PtNi alloy nanoparticle systems. The current route is readily scalable, and multi-gram quantities can be prepared. The prepared carbon-supported Pt and PtNi nanoparticles were characterized as electrocatalysts for the oxygen reduction reaction and exhibited superior performance and durability to commercial Pt/C. English ROYAL SOC CHEMISTRY Thiometallate precursors for the synthesis of supported Pt and PtNi nanoparticle electrocatalysts: Size-focusing by S capping Article 10.1039/c9nr10706a 1 NANOSCALE, v.12, no.19, pp.10498 - 10504 NANOSCALE 12 19 10498 10504 N scie scopus 000537113200008 2-s2.0-85085266050 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article SULFUR-DOPED GRAPHENE PLATINUM NANOPARTICLES CARBON NANOTUBES CATALYSTS FUNCTIONALIZATION STABILITY LIGANDS