The effect of alloying on the oxygen reduction reaction activity of carbon-supported PtCu and PtPd nanorods

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Title:	The effect of alloying on the oxygen reduction reaction activity of carbon-supported PtCu and PtPd nanorods
Authors:	王冠文;Tseng, Yi-Chia;Chen, Hong-Shuo;Liu, Chen-Wei;Yeh, Tzu-Hau;Wang, Kuan-Wen
Contributors:	工學院材料科學與工程研究所
Keywords:	Alloying;Alloying effects;copper nanoparticles;durability;electrochemistry;Electron transfer;electrons;formic acid;Hydrogen peroxide;Nanorods;oxygen;Palladium;Platinum;Reduction
Date:	2014-03-28
Issue Date:	2026-04-23 11:46:55 (UTC+8)
Publisher:	Royal Society of Chemistry;Royal Society of Chemistry (RSC)
Abstract:	摘要： In this study, we have investigated the effect of alloying on the modification of the d-band vacancies and oxygen reduction reaction (ORR) activity of PtPd and PtCu nanorods (NRs). PtCu and PtPd NRs with various ratios can be prepared successfully by a facile formic acid reduction method. The number of unfilled d-states ( H Ts ) value of Pt nanoparticles is decreased due to the formation of NRs, and further decreased due to the alloying with different metals. For the Pt3Pd NRs, the H Ts value is as low as 0.3056, suggesting that they have lower unfilled Pt d-states, and more d-band electrons transfer from Pd to Pt, leading to higher ORR activities than Pt/C. Besides, the electron transfer number ( n ) of Pt3Pd NRs towards the ORR is 3.7, meaning that they complete the O 2 reduction to water and exhibit low hydrogen peroxide production during the ORR. As a result, the correlation between the H Ts and ORR performance of PtPd and PtCu NRs highlights that the one-dimensional (1-D) structure and the electronic modification effect from Pd to Pt result in the excellent ORR activity and durability of Pt3Pd NRs synergistically. 出版者： Royal Society of Chemistry (RSC) 出版日期： 2014-01-01 出處： J. Mater. Chem. A, 2014-01, Vol.2 (12), p.4270-4275 資源來源： Royal Society of Chemistry 識別號： ISSN: 2050-7488 識別號： ISSN: 2050-7496 識別號： EISSN: 2050-7496 識別號： DOI: 10.1039/c3ta14705c
Appears in Collections:	[Institute of Materials Science and Engineering] journal & Dissertation

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