Low platinum loading electrospun electrodes for proton exchange membrane fuel cells
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2007
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| Online Access: | http://hdl.handle.net/1721.1/38280 |
| _version_ | 1826209416173584384 |
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| author | Singer, Simcha Lev |
| author2 | Yang Shao-Horn. |
| author_facet | Yang Shao-Horn. Singer, Simcha Lev |
| author_sort | Singer, Simcha Lev |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006. |
| first_indexed | 2024-09-23T14:22:09Z |
| format | Thesis |
| id | mit-1721.1/38280 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:22:09Z |
| publishDate | 2007 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/382802019-04-10T17:13:30Z Low platinum loading electrospun electrodes for proton exchange membrane fuel cells Singer, Simcha Lev Yang Shao-Horn. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006. Includes bibliographical references (p. 104-106). An experimental study was performed to evaluate the utility of electrospun carbon nanofiber supports for sputtered platinum catalyst in proton exchange membrane fuel cells. The performance of the sputtered nanofiber supports was similar to that of sputtered commercial gas diffusion layers in single cell fuel cell tests. However, sputtered platinum electrodes performed significantly worse than commercial thin film electrodes due to high activation and concentration voltage losses. Cyclic voltammetry and rotating disc electrode experiments were performed in order to evaluate the influence of platinum loading and particle size on the electrochemical active area and oxygen reduction performance of the sputtered platinum. Active area per weight catalyst decreased with sputtering time, and the oxygen reduction activity slightly increases with increasing sputtering time. Both of these effects are thought to be due to increasing platinum particle size as sputtering time is increased. by Simcha Lev Singer. S.M. 2007-08-03T18:25:10Z 2007-08-03T18:25:10Z 2006 2006 Thesis http://hdl.handle.net/1721.1/38280 153286417 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 117 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Singer, Simcha Lev Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title | Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title_full | Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title_fullStr | Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title_full_unstemmed | Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title_short | Low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| title_sort | low platinum loading electrospun electrodes for proton exchange membrane fuel cells |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/38280 |
| work_keys_str_mv | AT singersimchalev lowplatinumloadingelectrospunelectrodesforprotonexchangemembranefuelcells |