Highly stable RuO2/SnO2 nanocomposites as anode electrocatalysts in a PEM water electrolysis cell
- Authors
- Lim, Ji Yeon; Rahman, Gul; Chae, Sang Youn; Lee, Kwan-Young; Kim, Chang-Soo; Joo, Oh-Shim
- Issue Date
- 10-6월-2014
- Publisher
- WILEY
- Keywords
- oxygen evolution reaction; stability; hydrogen generation; anode electrocatalysts; nanocomposites; PEM water electrolysisp; tin oxide; ruthenium oxide
- Citation
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.38, no.7, pp.875 - 883
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF ENERGY RESEARCH
- Volume
- 38
- Number
- 7
- Start Page
- 875
- End Page
- 883
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/98241
- DOI
- 10.1002/er.3081
- ISSN
- 0363-907X
- Abstract
- This work explores the opportunity to reduce the cost and enhance the stability of RuO2 as an oxygen evolution reaction catalyst by coating RuO2 on chemically stable SnO2 support. Nano-sized RuO2/SnO2 composites of different mass ratios of RuO2 to SnO2 (0.45:1, 0.67:1, and 1.07:1) were synthesized using solution-based hydrothermal method. The physicochemical properties of the RuO2/SnO2 were studied by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and N-2 adsorption-desorption isotherms. The electrochemical activity of RuO2/SnO2 as anode electrocatalyst was investigated in a proton exchange membrane (PEM) water electrolysis cell of Pt/C cathode and Nafion membrane. Experimental results showed that RuO2/SnO2 of ratio (1.07:1) exhibit higher electrochemical activity compared to pure RuO2, resulting -50% reduction of noble metal content. The extended life test of electrocatalysts for 240 h implied that RuO2/SnO2 (1.07:1) significantly improved the stability of electrode in comparison to pure RuO2 in oxygen evolution processes. Copyright (c) 2013 John Wiley & Sons, Ltd.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.