Highly stable RuO2/SnO2 nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Ji Yeon Lim, Gul Rahman, Sang Youn Chae, Kwan Young Lee, Chang Soo Kim, Oh Shim Joo

Research output: Contribution to journalArticle

11 Citations (Scopus)

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 N2 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.

Original languageEnglish
Pages (from-to)875-883
Number of pages9
JournalInternational Journal of Energy Research
Volume38
Issue number7
DOIs
Publication statusPublished - 2014 Jun 10

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Electrocatalysts
Electrolysis
Ion exchange
Nanocomposites
Anodes
Protons
Membranes
Oxygen
Precious metals
Catalyst supports
Isotherms
Water
Desorption
Cathodes
Transmission electron microscopy
Adsorption
X ray diffraction
Coatings
Scanning electron microscopy
Electrodes

Keywords

  • Anode electrocatalysts
  • Hydrogen generation
  • Nanocomposites
  • Oxygen evolution reaction
  • PEM water electrolysisp
  • Ruthenium oxide
  • Stability
  • Tin oxide

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment

Cite this

Highly stable RuO2/SnO2 nanocomposites as anode electrocatalysts in a PEM water electrolysis cell. / Lim, Ji Yeon; Rahman, Gul; Chae, Sang Youn; Lee, Kwan Young; Kim, Chang Soo; Joo, Oh Shim.

In: International Journal of Energy Research, Vol. 38, No. 7, 10.06.2014, p. 875-883.

Research output: Contribution to journalArticle

Lim, Ji Yeon ; Rahman, Gul ; Chae, Sang Youn ; Lee, Kwan Young ; Kim, Chang Soo ; Joo, Oh Shim. / Highly stable RuO2/SnO2 nanocomposites as anode electrocatalysts in a PEM water electrolysis cell. In: International Journal of Energy Research. 2014 ; Vol. 38, No. 7. pp. 875-883.
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