Details
| Original language | English |
|---|---|
| Pages (from-to) | 1137–1146 |
| Number of pages | 10 |
| Journal | Journal of Applied Electrochemistry |
| Volume | 47 |
| Issue number | 10 |
| Publication status | Published - 5 Aug 2017 |
Abstract
Abstract: A microporous layer represents an important element of the gas diffusion electrodes used in polymer electrolyte membrane (PEM) fuel cells and water electrolysers. It forms an interface between the nanostructured catalyst layer and the macrostructured electrode body. In the case of PEM water electrolysis such a layer has only been applied to the cathode to date. On the other hand, it is typically absent on the anode side of the cell. In the present study, such a layer was integrated into the anode of a PEM water electrolyser. It was based on antimony-doped tin oxide placed on titanium felt forming the electrode backing. Using an in-house synthesised IrO 2, gas diffusion anodes were manufactured with and without the microporous layer and their performance compared in a laboratory PEM water electrolyser. Current–voltage curves and electrochemical impedance spectra were recorded. The results revealed that the microporous layer is only advantageous in a range of low current densities, while at higher current densities the ohmic resistance of the microporous layer significantly reduces the efficiency of electrolysis. Graphical Abstract: [Figure not available: see fulltext.].
Keywords
- Antimony-doped tin oxide, Iridium oxide, Microporous layer, Ohmic resistance, Polymer electrolyte membrane water electrolysis
ASJC Scopus subject areas
- Materials Science(all)
- Materials Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Chemistry(all)
- Electrochemistry
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of Applied Electrochemistry, Vol. 47, No. 10, 05.08.2017, p. 1137–1146.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Anodic microporous layer for polymer electrolyte membrane water electrolysers
AU - Polonský, J.
AU - Kodým, R.
AU - Vágner, P.
AU - Paidar, M.
AU - Bensmann, B.
AU - Bouzek, K.
N1 - Funding information: Financial support of this work by the Grant Agency of the Czech Republic within the framework of Project No. 15-02407J and by Deutsche Forschungsgemeinschaft, Grant no. HA 6841/2-1, is gratefully acknowledged. Part of material characterisation experiments has been performed utilising instrumentation financed by the Operational Programme Prague – Competitiveness (CZ.2.16/3.1.00/24501) and “National Program of Sustainability“ (NPU I LO1613) MSMT-43760/2015.
PY - 2017/8/5
Y1 - 2017/8/5
N2 - Abstract: A microporous layer represents an important element of the gas diffusion electrodes used in polymer electrolyte membrane (PEM) fuel cells and water electrolysers. It forms an interface between the nanostructured catalyst layer and the macrostructured electrode body. In the case of PEM water electrolysis such a layer has only been applied to the cathode to date. On the other hand, it is typically absent on the anode side of the cell. In the present study, such a layer was integrated into the anode of a PEM water electrolyser. It was based on antimony-doped tin oxide placed on titanium felt forming the electrode backing. Using an in-house synthesised IrO 2, gas diffusion anodes were manufactured with and without the microporous layer and their performance compared in a laboratory PEM water electrolyser. Current–voltage curves and electrochemical impedance spectra were recorded. The results revealed that the microporous layer is only advantageous in a range of low current densities, while at higher current densities the ohmic resistance of the microporous layer significantly reduces the efficiency of electrolysis. Graphical Abstract: [Figure not available: see fulltext.].
AB - Abstract: A microporous layer represents an important element of the gas diffusion electrodes used in polymer electrolyte membrane (PEM) fuel cells and water electrolysers. It forms an interface between the nanostructured catalyst layer and the macrostructured electrode body. In the case of PEM water electrolysis such a layer has only been applied to the cathode to date. On the other hand, it is typically absent on the anode side of the cell. In the present study, such a layer was integrated into the anode of a PEM water electrolyser. It was based on antimony-doped tin oxide placed on titanium felt forming the electrode backing. Using an in-house synthesised IrO 2, gas diffusion anodes were manufactured with and without the microporous layer and their performance compared in a laboratory PEM water electrolyser. Current–voltage curves and electrochemical impedance spectra were recorded. The results revealed that the microporous layer is only advantageous in a range of low current densities, while at higher current densities the ohmic resistance of the microporous layer significantly reduces the efficiency of electrolysis. Graphical Abstract: [Figure not available: see fulltext.].
KW - Antimony-doped tin oxide
KW - Iridium oxide
KW - Microporous layer
KW - Ohmic resistance
KW - Polymer electrolyte membrane water electrolysis
UR - http://www.scopus.com/inward/record.url?scp=85026828584&partnerID=8YFLogxK
U2 - 10.1007/s10800-017-1110-1
DO - 10.1007/s10800-017-1110-1
M3 - Article
VL - 47
SP - 1137
EP - 1146
JO - Journal of Applied Electrochemistry
JF - Journal of Applied Electrochemistry
SN - 0021-891x
IS - 10
ER -