Abstract
For polymer electrolyte fuel cell (PEFC) electrocatalysts, carbon corrosion is one of the important technological issues to be solved. TiO2 is a possible alternative support material. In this study, vaporgrown carbon fiber (VGCF-H) conductive fillers are applied as the built-in electron-conductive backbone, on which Nb-doped TiO2 is coated and Pt nanoparticles are then impregnated. FESEM images of Pt/Ti0.95Nb0.05O2/VGCF-H reveal selective impregnation of Pt nanoparticles on the TiO2 grains rather than the VGCF-H conductive fillers. This conductive-filler-integrated electrocatalyst exhibits relatively higher electrochemical surface area (ECSA) and oxygen reduction reaction (ORR) activity, compared to the electrocatalysts without conductive fillers.
| Original language | English |
|---|---|
| Title of host publication | Polymer Electrolyte Fuel Cells 15, PEFC 15 |
| Editors | H. A. Gasteiger, V. K. Ramani, J. M. Fenton, T. J. Schmidt, D. J. Jones, K. E. Ayers, K. A. Perry, T. F. Fuller, B. S. Pivovar, K. Shinohara, F. N. Buchi, R. A. Mantz, C. Coutanceau, P. Strasser, A. Z. Weber, K. Swider-Lyons, H. Uchida, M. Edmundson, S. Mitsushima, S. R. Narayanan |
| Publisher | Electrochemical Society Inc. |
| Pages | 603-609 |
| Number of pages | 7 |
| Edition | 17 |
| ISBN (Electronic) | 9781607685395 |
| DOIs | |
| Publication status | Published - Jan 1 2015 |
| Event | Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting - Phoenix, United States Duration: Oct 11 2015 → Oct 15 2015 |
Publication series
| Name | ECS Transactions |
|---|---|
| Number | 17 |
| Volume | 69 |
| ISSN (Print) | 1938-5862 |
| ISSN (Electronic) | 1938-6737 |
Other
| Other | Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting |
|---|---|
| Country | United States |
| City | Phoenix |
| Period | 10/11/15 → 10/15/15 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Pt-decorated TiO2 electrocatalysts for PEFCs. / Iwami, Masahiro; Horiguchi, Dai; Noda, Zhiyun; Hayashi, Akari; Sasaki, Kazunari.
Polymer Electrolyte Fuel Cells 15, PEFC 15. ed. / H. A. Gasteiger; V. K. Ramani; J. M. Fenton; T. J. Schmidt; D. J. Jones; K. E. Ayers; K. A. Perry; T. F. Fuller; B. S. Pivovar; K. Shinohara; F. N. Buchi; R. A. Mantz; C. Coutanceau; P. Strasser; A. Z. Weber; K. Swider-Lyons; H. Uchida; M. Edmundson; S. Mitsushima; S. R. Narayanan. 17. ed. Electrochemical Society Inc., 2015. p. 603-609 (ECS Transactions; Vol. 69, No. 17).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Pt-decorated TiO2 electrocatalysts for PEFCs
AU - Iwami, Masahiro
AU - Horiguchi, Dai
AU - Noda, Zhiyun
AU - Hayashi, Akari
AU - Sasaki, Kazunari
PY - 2015/1/1
Y1 - 2015/1/1
N2 - For polymer electrolyte fuel cell (PEFC) electrocatalysts, carbon corrosion is one of the important technological issues to be solved. TiO2 is a possible alternative support material. In this study, vaporgrown carbon fiber (VGCF-H) conductive fillers are applied as the built-in electron-conductive backbone, on which Nb-doped TiO2 is coated and Pt nanoparticles are then impregnated. FESEM images of Pt/Ti0.95Nb0.05O2/VGCF-H reveal selective impregnation of Pt nanoparticles on the TiO2 grains rather than the VGCF-H conductive fillers. This conductive-filler-integrated electrocatalyst exhibits relatively higher electrochemical surface area (ECSA) and oxygen reduction reaction (ORR) activity, compared to the electrocatalysts without conductive fillers.
AB - For polymer electrolyte fuel cell (PEFC) electrocatalysts, carbon corrosion is one of the important technological issues to be solved. TiO2 is a possible alternative support material. In this study, vaporgrown carbon fiber (VGCF-H) conductive fillers are applied as the built-in electron-conductive backbone, on which Nb-doped TiO2 is coated and Pt nanoparticles are then impregnated. FESEM images of Pt/Ti0.95Nb0.05O2/VGCF-H reveal selective impregnation of Pt nanoparticles on the TiO2 grains rather than the VGCF-H conductive fillers. This conductive-filler-integrated electrocatalyst exhibits relatively higher electrochemical surface area (ECSA) and oxygen reduction reaction (ORR) activity, compared to the electrocatalysts without conductive fillers.
UR - http://www.scopus.com/inward/record.url?scp=84946016221&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946016221&partnerID=8YFLogxK
U2 - 10.1149/06917.0603ecst
DO - 10.1149/06917.0603ecst
M3 - Conference contribution
AN - SCOPUS:84946016221
T3 - ECS Transactions
SP - 603
EP - 609
BT - Polymer Electrolyte Fuel Cells 15, PEFC 15
A2 - Gasteiger, H. A.
A2 - Ramani, V. K.
A2 - Fenton, J. M.
A2 - Schmidt, T. J.
A2 - Jones, D. J.
A2 - Ayers, K. E.
A2 - Perry, K. A.
A2 - Fuller, T. F.
A2 - Pivovar, B. S.
A2 - Shinohara, K.
A2 - Buchi, F. N.
A2 - Mantz, R. A.
A2 - Coutanceau, C.
A2 - Strasser, P.
A2 - Weber, A. Z.
A2 - Swider-Lyons, K.
A2 - Uchida, H.
A2 - Edmundson, M.
A2 - Mitsushima, S.
A2 - Narayanan, S. R.
PB - Electrochemical Society Inc.
ER -