Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Silver halide-induced catalyst poisoning of Ag-M bimetallic nanoparticles (biNPs) and their chemical regeneration

Authors
Ryu, Han-JungLee, Won KyuChoi, Jong YunLee, Jae-Seung
Issue Date
5-4월-2022
Publisher
ELSEVIER SCIENCE SA
Keywords
AgCl; Catalyst; Poisoning; Regeneration; Bimetallic nanoparticles
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.899
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ALLOYS AND COMPOUNDS
Volume
899
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/137477
DOI
10.1016/j.jallcom.2021.163260
ISSN
0925-8388
Abstract
Catalyst poisoning is a core research topic in the field of heterogeneous catalysis. Despite its importance, however, the catalytic properties of Ag-M bimetallic nanoparticle (biNP) catalysts have not been investigated with regards to the effect of precursor-induced silver halide byproducts. To address this issue, we demonstrated the synthesis of Ag-Pd and Ag-Pt biNPs of controlled and uniform shapes, sizes, and compositions using chlorometallate and Cl-free precursors and investigated their catalytic properties. Importantly, we discovered that the catalytic properties of the biNPs were significantly enhanced upon AgCl removal using ascorbic acid, which could increase their exposed surface area. Moreover, the structures of the biNPs were maintained after AgCl removal using ascorbic acid, which is a significant advantage over AgCl removal using conventional NH3. This study is the first to report AgCl-induced biNP catalyst poisoning caused by the use of chlorometallate precursors and its chemical regeneration, and can be used as a guideline for the controlled synthesis of biNPs of high purity and their efficient applications in catalysis, plasmonics, biomedical detection, and energy conversion. (C) 2021 Elsevier B.V. All rights reserved.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Lee, Jae Seung photo

Lee, Jae Seung
공과대학 (신소재공학부)
Read more

Altmetrics

Total Views & Downloads

BROWSE