Synthesis of Pd−Au Bimetallic Nanocrystals via Controlled Overgrowth

Citations Over TimeTop 1% of 2010 papers

Abstract

This paper describes the synthesis of Pd-Au bimetallic nanocrystals with controlled morphologies via a one-step seeded-growth method. Two different reducing agents, namely, L-ascorbic acid and citric acid, were utilized for the reduction of HAuCl(4) in an aqueous solution to control the overgrowth of Au on cubic Pd seeds. When L-ascorbic acid was used as the reducing agent, conformal overgrowth of Au on the Pd nanocubes led to the formation of Pd-Au nanocrystals with a core-shell structure. On the contrary, localized overgrowth of Au was observed when citric acid was used as the reducing agent, producing Pd-Au bimetallic dimers. Through this morphological control, we were able to tune the localized surface plasmon resonance peaks of Pd-Au bimetallic nanostructures in the visible region.

Related Papers

• → Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles(2023)549 cited
• → Defects engineering of bimetallic Ni-based catalysts for electrochemical energy conversion(2020)60 cited
• → Facile synthesis of bimetallic Ni-Cu nanoparticles using liquid phase plasma method(2016)26 cited
• → A new type of catalysts: catalysts of singly dispersed bimetallic sites(2023)12 cited
• → Nanoscale bimetallic catalysts: are they really bimetallic?(2002)4 cited