Three dimensional PtRh alloy porous nanostructures: Tuning the atomic composition and controlling the morphology for the application of direct methanol fuel cells

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题名:	Three dimensional PtRh alloy porous nanostructures: Tuning the atomic composition and controlling the morphology for the application of direct methanol fuel cells
作者:	劉炯權;Zhang, Yuan;Janyasupab, Metini;Liu, Chen-Wei;Li, Xinxin;Xu, Jiaqiang;Liu, Chung-Chiun
贡献者:	工學院材料科學與工程研究所
关键词:	3D porous nanostructures;alloys;fuel cells;methanol oxidation;PtRh
日期:	2012-09-11
上传时间:	2026-04-23 11:48:46 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： AbstractA strategy for the synthesis of PtRh alloy 3D porous nanostructures by controlled aggregation of nanoparticles in oleylamine is presented. The atomic ratio between the two components (Pt and Rh) is tuned by varying the concentration of precursor salts accommodating the oxidation of methanol. The morphology of PtRh alloy nanostructure is controlled by elevating the temperature of the reaction system to 240 °C. The prepared 3D porous nanostructures provide a high degree of electrochemical activity and good durability toward the methanol oxidation reaction compared to those of the commercial Pt/C (E‐TEK) and PtRh nanoparticles. Therefore, the 3D alloy porous nanostructures provide a good opportunity to explore their catalytic properties for methanol oxidation. 其他題名： Adv. Funct. Mater 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2012-09-11 出處： Advanced Functional Materials, 2012-09, Vol.22 (17), p.3570-3575 資源來源： Wiley Online Library - AutoHoldings Journals 版權： Copyright © 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 1616-301X 識別號： ISSN: 1616-3028 識別號： EISSN: 1616-3028 識別號： DOI: 10.1002/adfm.201200678
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