Structure and Properties of Nanostructured Systems AgAu/Si

Abstract

In aqueous solutions, a nanostructured AgAu bimetallic system is deposited by galvanic replacement on silicon. It was established that the coprecipitation of metals during galvanic replacement occurs somewhat ahead of the gold content in the AgAu/Si system. Thus, in aqueous solutions of [2mМАgNO3]:[10mМHAuCl4], nanoparticles with a ratio of Ag:Au = 2:10 are deposited on the silicon surface, respectively. The size of discrete bimetallic nanoparticles increases with increasing [AgNO3]:[HAuCl4] ratio. Therefore, at a close metal content, AgAu particles are the smallest. This is due to the factor of mutual influence of two metals during coprecipitation.

Keywords (in English)
AgAu/Si
nanostructured
galvanic replacement
polyvinylpyrrolidone
Author (co-authors)
First name Last name Institutional affiliation E-mail Phone number ORCID ID Academic status, position Institution address Author contribution(s) Institutional affiliation
Mariana
Shepida
mariana.v.shepida@lpnu.ua
0000-0001-9842-5864
Lviv, S. Bandera Street 12
Writing – Original Draft Preparation
Lviv Polytechnic National University
Vitalii
Tsybrivskyi
vitalii.tsybrivskyi.hb.2023@lpnu.ua
Lviv, S. Bandera Street 12
Investigation
Lviv Polytechnic National University
Yurii
Sukhatskyi
yurii.v.sukhatskyi@lpnu.ua
Lviv, S. Bandera Street 12
Formal Analysis
Lviv Polytechnic National University
Martyn
Sozanskyi
martyn.a.sozanskyi@lpnu.ua
Lviv, S. Bandera Street 12
Methodology
Lviv Polytechnic National University
Vasyl
Kordan
vasyl.kordan@lnu.edu.ua
Lviv, 6, Kyryla i Mefodiya St.,
Visualization
Ivan Franko National University of Lviv
Manuscript file
si.doc1.45 MB