Preparation of carbon-supported PtM (M = Au, Pd, or Cu) nanorods and their application in oxygen reduction reaction

Tzu Hau Yeh, Chen Wei Liu, Hong Shuo Chen, Kuan Wen Wang

研究成果: 雜誌貢獻期刊論文同行評審

34 引文 斯高帕斯(Scopus)

摘要

Controlling the morphology of Pt nanostructures can provide a great opportunity to improve their catalytic properties. In this study, highly effective Pt and PtM (M = Au, Pd, or Cu) nanorods (NRs) are prepared by formic acid method for their oxygen reduction reaction (ORR). The number of unoccupied d-state (hTs) results show that PtCu and PtPd NRs have lower unfilled Pt d-states, indicating more d-band electron transfer from the metal to Pt and a decrease of the adsorption strength of oxygenated adsorbates. Besides, after accelerated durability test (ADT) of 1000 cycles, the mass activity of PtCu NRs is nearly 2.2 times higher than that of commercial Pt/C. Thus, the promotional effect of PtCu NRs can be attributed to the 1-D morphology and low unoccupied d-states, favorably enhancing the ORR performance.

原文???core.languages.en_GB???
頁(從 - 到)125-128
頁數4
期刊Electrochemistry Communications
31
DOIs
出版狀態已出版 - 6月 2013

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