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 language | English |
|---|---|
| Pages (from-to) | 875-883 |
| Number of pages | 9 |
| Journal | International Journal of Energy Research |
| Volume | 38 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2014 Jun 10 |
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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 journal › Article
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TY - JOUR
T1 - Highly stable RuO2/SnO2 nanocomposites as anode electrocatalysts in a PEM water electrolysis cell
AU - Lim, Ji Yeon
AU - Rahman, Gul
AU - Chae, Sang Youn
AU - Lee, Kwan Young
AU - Kim, Chang Soo
AU - Joo, Oh Shim
PY - 2014/6/10
Y1 - 2014/6/10
N2 - 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.
AB - 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.
KW - Anode electrocatalysts
KW - Hydrogen generation
KW - Nanocomposites
KW - Oxygen evolution reaction
KW - PEM water electrolysisp
KW - Ruthenium oxide
KW - Stability
KW - Tin oxide
UR - http://www.scopus.com/inward/record.url?scp=84899964518&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899964518&partnerID=8YFLogxK
U2 - 10.1002/er.3081
DO - 10.1002/er.3081
M3 - Article
VL - 38
SP - 875
EP - 883
JO - International Journal of Energy Research
JF - International Journal of Energy Research
SN - 0363-907X
IS - 7
ER -