Jervis, R;
Mansor, N;
Sobrido, AJ;
Jones, S;
Gibbs, C;
Neville, TP;
Millichamp, J;
... Brett, DJL; + view all
(2017)
The Importance of Using Alkaline Ionomer Binders for Screening Electrocatalysts in Alkaline Electrolyte.
Journal of the Electrochemical Society
, 164
(14)
F1551-F1555.
10.1149/2.0441714jes.
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Abstract
Many electrochemical studies exist using the acidic ionomer Nafion as a binder in the ink formulation when operating in high pH systems. However, Nafion acts as an ionic insulator for OH−, and for reactions such as the hydrogen oxidation reaction, the transport of OH− to the catalyst surface is of utmost importance when elucidating the performance of a catalyst. This work demonstrates that when using an alkaline polymer binder in the ink, the apparent activity of a commercially synthesized Pt/C catalyst is increased due to a lower diffusion resistance for the reaction. In order to obtain accurate values for kinetic data in alkaline media, the use of the acidic binder should be avoided.
| Type: | Article |
|---|---|
| Title: | The Importance of Using Alkaline Ionomer Binders for Screening Electrocatalysts in Alkaline Electrolyte |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1149/2.0441714jes |
| Publisher version: | http://dx.doi.org/10.1149/2.0441714jes |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10051838 |
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