Miniature Fuel Cell With Monolithically Fabricated Si Electrodes - Au-Pd-Pt Multilayer Catalyst -

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Shirai, Ryo^1 ; Vasiljevic, N.^2 ; Hayase, Masanori^1

Tokyo Unversity of Science, 2641 Yamazaki, Chiba, Noda

278-8510, Japan^1

University of Bristol, Tyndall Avenue, Bristol

BS8 1TL, United Kingdom^2

关键词: Catalyst layers;    CO tolerance;    Layered Structures;    Miniature fuel cells;    Novel catalysts;    Pd Pt catalyst;    Si electrodes;    Underpotential deposition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012096/pdf
DOI  :  10.1088/1742-6596/773/1/012096

来源: IOP

【 摘 要 】

A novel catalyst layer structure is proposed for our miniature fuel cells. In our fuel cells, conventionally porous Pt was used as a catalyst layer. In order to reduce the Pt amount, instead of porous Pt, porous Pd was formed on a Si chip and Pt was deposited atomically on the Pd by UPD-SLRR(Under Potential Deposition - Surface Limited Redox Replacement). The Pd- Pt catalyst showed satisfying performance, besides high CO tolerance was observed. Though the Pd-Pt catalyst is quite promising, Pd is also a rare metal and reduction of Pd amount is necessary. In this study, a novel Au-Pd-Pt catalyst formation strategy is proposed by UPD-SLRR, and the layered structure is preliminary fabricated.