Abstract
Core-shell electrocatalyst, in which a Pt monolayer or multilayer shell covers a nano-particle core of a different metal, exhibits high mass activity due to the high utilization of Pt. However, it is still required to improve its durability. If a thermochemically-stable conductive oxide is applied to the core with high durability, such an oxide-core Pt-shell electrocatalyst may exhibit high durability. In this study, we try to realize atomic-level Pt deposition on such a stable oxide to prepare core-shell electrocatalysts, where SnO2 rather than (noble) metals is applied as the core of such electrocatalysts. A photochemical procedure is applied to deposit Pt on SnO2. The dependencies of Pt shell deposition and electrocatalytic activity are analyzed on ultraviolet (UV) irradiation time, suspension temperature during UV irradiation, and the kind and concentration of the sacrificial reagent.
| Original language | English |
|---|---|
| Title of host publication | ECS Transactions |
| Editors | P. A. Shirvanian, V. Ramani, Y.-T. Kim, H. A. Gasteiger, K. Shinohara, K. E. Ayers, B. S. Pivovar, D. J. Jones, H. Uchida, K. A. Perry, S. Mitsushima, H. Xu, T. J. Schmidt, J. M. Fenton, T. F. Fuller, P. Strasser, F. Buechi, K. E. Swider-Lyons, R. A. Mantz, S. Narayan, P. N. Pintauro, C. Coutanceau, A. Z. Weber |
| Publisher | Electrochemical Society Inc. |
| Pages | 773-780 |
| Number of pages | 8 |
| Edition | 8 |
| ISBN (Electronic) | 9781607685395 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
| Event | Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting - National Harbor, United States Duration: Oct 1 2017 → Oct 5 2017 |
Publication series
| Name | ECS Transactions |
|---|---|
| Number | 8 |
| Volume | 80 |
| ISSN (Print) | 1938-6737 |
| ISSN (Electronic) | 1938-5862 |
Other
| Other | Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting |
|---|---|
| Country | United States |
| City | National Harbor |
| Period | 10/1/17 → 10/5/17 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Photochemical preparation of Pt electrocatalysts on Sn02 support for PEFCs. / Nagamine, M.; Noda, Z.; Matsumoto, S.; Matsuda, J.; Hayashi, A.; Sasaki, K.
ECS Transactions. ed. / P. A. Shirvanian; V. Ramani; Y.-T. Kim; H. A. Gasteiger; K. Shinohara; K. E. Ayers; B. S. Pivovar; D. J. Jones; H. Uchida; K. A. Perry; S. Mitsushima; H. Xu; T. J. Schmidt; J. M. Fenton; T. F. Fuller; P. Strasser; F. Buechi; K. E. Swider-Lyons; R. A. Mantz; S. Narayan; P. N. Pintauro; C. Coutanceau; A. Z. Weber. 8. ed. Electrochemical Society Inc., 2017. p. 773-780 (ECS Transactions; Vol. 80, No. 8).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Photochemical preparation of Pt electrocatalysts on Sn02 support for PEFCs
AU - Nagamine, M.
AU - Noda, Z.
AU - Matsumoto, S.
AU - Matsuda, J.
AU - Hayashi, A.
AU - Sasaki, K.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Core-shell electrocatalyst, in which a Pt monolayer or multilayer shell covers a nano-particle core of a different metal, exhibits high mass activity due to the high utilization of Pt. However, it is still required to improve its durability. If a thermochemically-stable conductive oxide is applied to the core with high durability, such an oxide-core Pt-shell electrocatalyst may exhibit high durability. In this study, we try to realize atomic-level Pt deposition on such a stable oxide to prepare core-shell electrocatalysts, where SnO2 rather than (noble) metals is applied as the core of such electrocatalysts. A photochemical procedure is applied to deposit Pt on SnO2. The dependencies of Pt shell deposition and electrocatalytic activity are analyzed on ultraviolet (UV) irradiation time, suspension temperature during UV irradiation, and the kind and concentration of the sacrificial reagent.
AB - Core-shell electrocatalyst, in which a Pt monolayer or multilayer shell covers a nano-particle core of a different metal, exhibits high mass activity due to the high utilization of Pt. However, it is still required to improve its durability. If a thermochemically-stable conductive oxide is applied to the core with high durability, such an oxide-core Pt-shell electrocatalyst may exhibit high durability. In this study, we try to realize atomic-level Pt deposition on such a stable oxide to prepare core-shell electrocatalysts, where SnO2 rather than (noble) metals is applied as the core of such electrocatalysts. A photochemical procedure is applied to deposit Pt on SnO2. The dependencies of Pt shell deposition and electrocatalytic activity are analyzed on ultraviolet (UV) irradiation time, suspension temperature during UV irradiation, and the kind and concentration of the sacrificial reagent.
UR - http://www.scopus.com/inward/record.url?scp=85050035537&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85050035537&partnerID=8YFLogxK
U2 - 10.1149/08008.0773ecst
DO - 10.1149/08008.0773ecst
M3 - Conference contribution
AN - SCOPUS:85050035537
T3 - ECS Transactions
SP - 773
EP - 780
BT - ECS Transactions
A2 - Shirvanian, P. A.
A2 - Ramani, V.
A2 - Kim, Y.-T.
A2 - Gasteiger, H. A.
A2 - Shinohara, K.
A2 - Ayers, K. E.
A2 - Pivovar, B. S.
A2 - Jones, D. J.
A2 - Uchida, H.
A2 - Perry, K. A.
A2 - Mitsushima, S.
A2 - Xu, H.
A2 - Schmidt, T. J.
A2 - Fenton, J. M.
A2 - Fuller, T. F.
A2 - Strasser, P.
A2 - Buechi, F.
A2 - Swider-Lyons, K. E.
A2 - Mantz, R. A.
A2 - Narayan, S.
A2 - Pintauro, P. N.
A2 - Coutanceau, C.
A2 - Weber, A. Z.
PB - Electrochemical Society Inc.
ER -