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Chemical transformation of solution-processed Ag nanocrystal thin films into electrically conductive and catalytically active Pt-based nanostructures

Authors
Seong, MingiKim, HoyoungWoo, Ho YoungHossain, Md AshrafAhn, Jun HyukKim, Soo-KilPaik, TaejongOh, Soong Ju
Issue Date
25-8월-2019
Publisher
ELSEVIER SCIENCE INC
Keywords
Silver nanocrystal; Pt-Ag alloy structure; Electroless deposition; Galvanic displacement; Hydrogen evolution reaction
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.76, pp.388 - 395
Indexed
SCIE
SCOPUS
KCI
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume
76
Start Page
388
End Page
395
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/63475
DOI
10.1016/j.jiec.2019.04.004
ISSN
1226-086X
Abstract
Efficient methods for the controlled syntheses of metal nanocrystals are important for emerging electronics and catalysis applications. In this report, we present a solution-based method for the fabrication of Pt-coated Ag nanocrystal (NC) thin films through the use of ligand-exchange and electroless deposition. We successfully prepared uniform or bumpy Ag@Pt core/shell structures, as well as Ag-Pt alloy structures, through control of the reducing agents. We first report the Ag-Pt alloy structures can be synthesized by low-temperature and solution-based process of post treatment that exhibited high catalytic activity toward the hydrogen evolution reaction. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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공과대학 (신소재공학부)
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