Title

A general synthesis approach for supported bimetallic nanoparticles via surface inorganometallic chemistry

Document Type

Article

Publication Date

11-2-2018

Abstract

The synthesis of ultrasmall supported bimetallic nanoparticles (between 1 and 3 nanometers in diameter) with well-defined stoichiometry and intimacy between constituent metals remains a substantial challenge. We synthesized 10 different supported bimetallic nanoparticles via surface inorganometallic chemistry by decomposing and reducing surface-adsorbed heterometallic double complex salts, which are readily obtained upon sequential adsorption of target cations and anions on a silica substrate. For example, adsorption of tetraamminepalladium(II) [Pd(NH ) ] followed by adsorption of tetrachloroplatinate [PtCl ] was used to form palladium-platinum (Pd-Pt) nanoparticles. These supported bimetallic nanoparticles show enhanced catalytic performance in acetylene selective hydrogenation, which clearly demonstrates a synergistic effect between constituent metals. 3 4 4 2+ 2−

Publication Source (Journal or Book title)

Science

First Page

560

Last Page

564

This document is currently not available here.

Share

COinS