| Presentation | 2017-12-28 Effects of Zinc Salt Addition to the Precursor of Fe/N/C Oxygen Reduction Catalysts for Cathode in Polymer Electrolyte Fuel Cells Ryoma Ono, Hidenobu Shiroishi, Morihiro Saito, Tsukasa Yoshida, Kun'ichi Miyazawa, Yumi Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The further improvement of oxygen reduction activity for non-platinum oxygen reduction catalysts is required for the substitution of platinum. In this study, the precursors of Fe/N/C type oxygen reduction catalysts were prepared using a zinc salt as well as 1,10-phenanthroline (phen), Ketjenblack(KB), and iron(II) acetate. The effects of Zn salt addition to the precursors on oxygen reduction activity was investigated by the electrochemical measurements, thermogravimetry, and X-ray photoelectron spectroscopy. Onset potential, which was defined by 100 μA mg-1 of oxygen reduction current, was 0.882 V vs. RHE for the catalyst made from zinc acetate as well as phen, KB, and iron(II) acetate, whose overvoltage decreased by 39 mV compared to those without zinc acetate. The decrease in phen was suppressed to about 50% in the presence of zinc acetate in the precursor, suggesting that the thermal stability was improved by the formation of a complex between zinc ion and phen. It was suggested that the addition of the zinc salt to the precursors causes the increase in the graphitic and pyridinic type nitrogen species functioning as active oxygen reduction sites. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PEFC / ORR / non-plutinum / Fe/N/C |
| Paper # | OME2017-51 |
| Date of Issue | 2017-12-21 (OME) |
| Conference Information | |
| Committee | OME |
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| Conference Date | 2017/12/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | battery, electrochemistry, surface modification, catalyst, in situ obsrvation, capacitor |
| Chair | Tatsuo Mori(Aichi Inst. of Tech.) |
| Vice Chair | Yutaka Majima(Tokyo Inst. of Tech.) |
| Secretary | Yutaka Majima(NICT) |
| Assistant | Hirotake Kajii(Osaka Univ.) / Toshihiko Kaji(Tokyo Univ. of Agriculture and Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Organic Molecular Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effects of Zinc Salt Addition to the Precursor of Fe/N/C Oxygen Reduction Catalysts for Cathode in Polymer Electrolyte Fuel Cells |
| Sub Title (in English) | |
| Keyword(1) | PEFC |
| Keyword(2) | ORR |
| Keyword(3) | non-plutinum |
| Keyword(4) | Fe/N/C |
| 1st Author's Name | Ryoma Ono |
| 1st Author's Affiliation | National Instinct of Technology, Tokyo college(National Inst. of Tech., Tokyo Col.) |
| 2nd Author's Name | Hidenobu Shiroishi |
| 2nd Author's Affiliation | National Instinct of Technology, Tokyo college(National Inst. of Tech., Tokyo Col.) |
| 3rd Author's Name | Morihiro Saito |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology(Tokyo Univ. of Agri. & Tech.) |
| 4th Author's Name | Tsukasa Yoshida |
| 4th Author's Affiliation | Yamagata University(Yamagata Univ.) |
| 5th Author's Name | Kun'ichi Miyazawa |
| 5th Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Sci.) |
| 6th Author's Name | Yumi Tanaka |
| 6th Author's Affiliation | Tokyo University of Science(Tokyo Univ. of Sci.) |
| Date | 2017-12-28 |
| Paper # | OME2017-51 |
| Volume (vol) | vol.117 |
| Number (no) | OME-376 |
| Page | pp.pp.11-14(OME), |
| #Pages | 4 |
| Date of Issue | 2017-12-21 (OME) |