Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode
Transition-metal oxides can exhibit high electrocatalytic activity for reactions such as the oxygen reduction reaction (ORR) in alkaline media. It is often difficult to measure and compare the activities of oxide catalysts on either per mass or per surface area basis, because of the poorly defined o...
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The Electrochemical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/79061 https://orcid.org/0000-0001-8199-8703 |
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| author | Suntivich, Jin Gasteiger, Hubert A. Yabuuchi, Naoaki Shao-Horn, Yang |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Suntivich, Jin Gasteiger, Hubert A. Yabuuchi, Naoaki Shao-Horn, Yang |
| author_sort | Suntivich, Jin |
| collection | MIT |
| description | Transition-metal oxides can exhibit high electrocatalytic activity for reactions such as the oxygen reduction reaction (ORR) in alkaline media. It is often difficult to measure and compare the activities of oxide catalysts on either per mass or per surface area basis, because of the poorly defined oxygen transport to and within porous oxide electrodes of several tens of micrometers thickness. In this study, a methodology was developed to compare the ORR activities of submicrometer-sized transition-metal oxides. Thin films of LaNiO[subscript 3], LaCu[subscript 0.5]Mn[subscript 0.5]O[subscript 3], and La[subscript 0.75]Ca[subscript 0.25]FeO[subscript 3] oxide particles were bonded to glassy carbon via an ion-exchanged Nafion binder, and their mass and specific ORR activities were extracted from rotating disk electrode measurements. We found that the specific activity of LaNiO[subscript 3] was much higher than that of La[subscript 0.75]Ca[subscript 0.25]FeO[subscript 3] and LaCu[subscript 0.5]Mn[subscript 0.5]O[subscript 3]. The projection of LaNiO[subscript 3] in the actual fuel cell cathode was presented, which was shown to be competitive with current platinum-based cathodes. |
| first_indexed | 2024-09-23T16:56:19Z |
| format | Article |
| id | mit-1721.1/79061 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:56:19Z |
| publishDate | 2013 |
| publisher | The Electrochemical Society |
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| spelling | mit-1721.1/790612024-06-26T00:09:55Z Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode Suntivich, Jin Gasteiger, Hubert A. Yabuuchi, Naoaki Shao-Horn, Yang Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Electrochemical Energy Laboratory Suntivich, Jin Gasteiger, Hubert A. Yabuuchi, Naoaki Shao-Horn, Yang Transition-metal oxides can exhibit high electrocatalytic activity for reactions such as the oxygen reduction reaction (ORR) in alkaline media. It is often difficult to measure and compare the activities of oxide catalysts on either per mass or per surface area basis, because of the poorly defined oxygen transport to and within porous oxide electrodes of several tens of micrometers thickness. In this study, a methodology was developed to compare the ORR activities of submicrometer-sized transition-metal oxides. Thin films of LaNiO[subscript 3], LaCu[subscript 0.5]Mn[subscript 0.5]O[subscript 3], and La[subscript 0.75]Ca[subscript 0.25]FeO[subscript 3] oxide particles were bonded to glassy carbon via an ion-exchanged Nafion binder, and their mass and specific ORR activities were extracted from rotating disk electrode measurements. We found that the specific activity of LaNiO[subscript 3] was much higher than that of La[subscript 0.75]Ca[subscript 0.25]FeO[subscript 3] and LaCu[subscript 0.5]Mn[subscript 0.5]O[subscript 3]. The projection of LaNiO[subscript 3] in the actual fuel cell cathode was presented, which was shown to be competitive with current platinum-based cathodes. 2013-06-05T17:39:45Z 2013-06-05T17:39:45Z 2010-07 2010-05 Article http://purl.org/eprint/type/JournalArticle 0013-4651 http://hdl.handle.net/1721.1/79061 Suntivich, Jin et al. “Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode.” Journal of The Electrochemical Society 157.8 (2010): B1263. © 2010 ECS - The Electrochemical Society https://orcid.org/0000-0001-8199-8703 en_US http://dx.doi.org/10.1149/1.3456630 Journal of The Electrochemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf The Electrochemical Society MIT web domain |
| spellingShingle | Suntivich, Jin Gasteiger, Hubert A. Yabuuchi, Naoaki Shao-Horn, Yang Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title | Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title_full | Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title_fullStr | Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title_full_unstemmed | Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title_short | Electrocatalytic Measurement Methodology of Oxide Catalysts Using a Thin-Film Rotating Disk Electrode |
| title_sort | electrocatalytic measurement methodology of oxide catalysts using a thin film rotating disk electrode |
| url | http://hdl.handle.net/1721.1/79061 https://orcid.org/0000-0001-8199-8703 |
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