Abstract
The electrocatalytic properties of a fuel cell catalyst ink in thin film form based on Vulcan XC72/Pt (30%) and Nafion was investigated by means of a flow cell of impinging jet type in flows of H2 and H2+CO dissolved in H2SO4 electrolyte. CO adlayers of different coverages were produced by a dosing procedure and their electrooxidative removal was studied. Ru was deposited onto the ink in situ by electroreduction and the basic voltammetry of such electrodes was investigated as well as the influence on CO adlayers and CO-tolerance. A Nafion film on top of the ink film influenced both the behaviour of CO adlayers and CO-tolerance. The feasibility of the flow cell for investigation and modification of ink electrodes were demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 261-268 |
| Journal | Journal of Power Sources |
| Volume | 86 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2000 |
| MoE publication type | A1 Journal article-refereed |
| Event | 6th Grove Fuel Cell Symposium - London, United Kingdom Duration: 13 Sept 1999 → 16 Sept 1999 |
Funding
The support of the Neste foundation and the Finnish Technology Development Centre is gratefully acknowledged.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Impinging jet
- Flow cell
- Fuel Cell catalyst
- Ru-modification
- CO-tolerance
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