室温铁磁性CoPt纳米截角八面体的简易合成及超高电催化特性表征

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Bibliographic Details
Published in	中国科学：材料科学（英文版） Vol. 60; no. 1; pp. 57 - 67
Main Author	夏田雨刘家龙王守国王超孙阳王荣明
Format	Journal Article
Language	English
Published	2017
Subjects	Pt/C催化剂八面体室温铁磁性特性表征电催化活性稳定性测试简易合成纳米结构
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ISSN	2095-8226 2199-4501

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Bibliography:	truncated octahedral nanoparticles, methanol oxida-tion reaction （MOR）, accelerated durability test （ADT）, ferro-magntism Nanomagnetic CoPt truncated octahedral nanoparticles （TONPs） were successfully synthesised through a facile one-pot strategy. These single crystal CoPt TONPs with an average size of about 8 nm exhibit excellent electrocatalytic performance of both activity and stability for methanol oxidation reaction （MOR）. The mass and specific activities of CoPt TONPs is 8 and 6 times higher than that of standard commercial Pt/C, respectively. After accelerated durability test （ADT）, the loss of electrochemical surface area （ECSA） for CoPt TONPs is only 18.5%, which is significantly less than that of commercial Pt/C （68.2%）, indicating that CoPt TONPs possess much better stability than commercial Pt/C in the prolonged operation. The Curie temperature of CoPt TONPs down to 8 nm is as high as 350 K with weak ferromagntism at room temperature （RT）, which is greatly valuable for recycling in the eletrocatalytic applications. Tianyu Xia1,2,3, Jialong Liu2, Shouguo Wang1,3, Chao Wang3, Young Sun3 and Rongming Wang1,2. 1.University of Science and Technology Beijing, Beijing 100083, China 2 Department of Physics, Beihang University, Beijing 100191, China 3 State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences （CAS）, Beijing 100190, China
ISSN:	2095-8226 2199-4501