Effect of structure of Pd@Fe core-shell cubes on the enhancement of H-2 conversion in direct reaction of H-2 and O-2
- Authors
- Xiao, Xiangyun; Lee, Seok-Ho; Han, Geun-Ho; Tag, Kyong Ryol; Ahn, Jae Pyoung; Kim, Hong-Kyu; Lee, Kwan-young; Yu, Taekyung
- Issue Date
- 25-Jun-2023
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Core@shell; Structure effect; Interface; H-2 conversion; Magnetic separation
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.122, pp 285 - 291
- Pages
- 7
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 122
- Start Page
- 285
- End Page
- 291
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/185580
- DOI
- 10.1016/j.jiec.2023.02.029
- ISSN
- 1226-086X
1876-794X
- Abstract
- Structure engineering is an integrated strategy to regulate the performance of nanoparticles for various catalytic reactions, since the nanoparticle composition, shape, and interface affect the reaction activity and selectivity. Herein, we report a simple synthesis of clear core-shell structured Pd@Fe nanocubes with different shell thicknesses, which exhibit higher H-2 conversion efficiency in direct hydrogen peroxide generation compared with ordinary Pd cubes. This result can be attributed to two main reasons: (i) the conformal growth of the Fe oxide shell consisting of loose structured Fe3O4 favors H-2 penetration, and (ii) the capping agent (Br-) on the Pd-Fe3O4 interface that blocks the Pd active sites is removed during the shell formation. Therefore, the Fe oxide shell of the Pd@Fe nanoparticles not only helps maintaining the morphology of the nanoparticles but also increases the number of active sites on the inner core surface, confirming the advantage of the core-shell structure. (c) 2023 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles

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