Research output per year
Research output per year
Elok Fidiani, Gnanavel Thirunavukkarasu, Yang Li, Yu-Lung Chiu, Shangfeng Du
Research output: Contribution to journal › Article › peer-review
The development of new electrode fabrication approaches from highly active electrocatalysts to replace the state-of-the-art Pt/C is most desirable for enhancing power performance and durability in proton exchange membrane fuel cells. However, the deployment of advanced, often shape-controlled Pt alloy electrocatalysts in actual electrodes remains challenging due to their small quantities in preparation and poor power performance in operating fuel cells. In this study, a new electrocatalyst approach is presented for Au integrated one-dimensional AgPt alloy nanorods. The atom arrangement is tuned through precisely controlling the metal ion reduction procedure to improve the catalyst activity. With 5 at% Au, nanorods with an average length of 20 nm and diameter of 3-4 nm are achieved. The test of Au-AgPt nanorods as cathode catalysts shows 1.2-fold higher fuel cell power density than that for commercial Pt/C catalysts, and a lower decline rate of 39.63% than 44.19% after an accelerated degradation test.
Original language | English |
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Pages (from-to) | 5578-5587 |
Number of pages | 10 |
Journal | Journal of Materials Chemistry A |
Volume | 9 |
Issue number | 9 |
Early online date | 18 Jan 2021 |
DOIs | |
Publication status | Published - 7 Mar 2021 |
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review