Insights into the mechanism of the formation of noble metal nanoparticles by in situ NMR spectroscopy.

ABSTRACT: High-resolution solution Nuclear Magnetic Resonance (NMR) spectroscopy has been used to gain insights into the mechanism of the formation of gold, platinum and gold-platinum alloyed nanoparticles using metal precursors and tetrakis(hydroxymethyl)phosphonium chloride (THPC) as starting materials. THPC is widely used in nanochemistry as a reductant and stabilizer of nanoparticles, however the identity of the species responsible for each role is unknown. The multinuclear study of the reaction media by NMR spectroscopy allowed us to elucidate the structure of all the compounds that participate in the transformation from the metal salt precursor to the reduced metal that forms the nanoparticle, thus clarifying the controversy found in the literature regarding the formation of THPC-based compoun

SUBMITTER: Mateo JM 

PROVIDER: S-EPMC9417889 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature