Pyroelectric synthesis of Au/Pt bimetallic nanoparticles–BaTiO3 hybrid nanomaterials. Issue 38 (12th June 2020)

• Record Type: Journal Article
• Authors: Wang, Liren; Wang, Han; Liu, Yanming; Wang, Xinyu; Tao, Peng; Shang, Wen; Fu, Benwei; Song, Chengyi; Deng, Tao
• Is Part Of: RSC advances. Volume 10:Issue 38(2020)
• Page Start: 22616
• Page End: 22621
• Publication Date: 2020-06-12
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra00648c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A "green" synthetic approach to Au/Pt bimetallic nanoparticles under an alternating temperature field. Abstract : This paper introduces an approach to synthesize bimetallic nanoparticles under an alternating temperature field in aqueous solution. During the synthesis, pyro-catalytic barium titanate is used as the substrate to reduce the metallic ions dispersed in the solution due to the generated charges at the surface of pyro-materials under temperature oscillation. Chloroauric acid and potassium tetrachloroplatinate are used as precursors to produce gold/platinum bimetallic nanoparticles through a pyro-catalytic process. Transmission electron microscopy characterization, in combination with energy dispersive X-ray spectroscopy mapping, demonstrates that the bimetallic nanoparticle is composed of an Au core and Au/Pt alloy shell structure. Compared to the conventional approaches, the pyroelectric synthesis approach demonstrated in this work requires no toxic reducing agents and waste heat can be used as a thermal energy source in the synthesis. Hence, it offers a potential "green" synthetic method for bimetallic nanoparticles.