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Chemical transformation of solution-processed Ag nanocrystal thin films into electrically conductive and catalytically active Pt-based nanostructures
- Authors
- Seong, Mingi; Kim, Hoyoung; Woo, Ho Young; Hossain, Md Ashraf; Ahn, Jun Hyuk; Kim, Soo-Kil; Paik, Taejong; Oh, Soong Ju
- Issue Date
- 25-Aug-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
- 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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Related Researcher
- Oh, Soong Ju
- 공과대학 (Department of Materials Science and Engineering)