李艳辉

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:材料物理与化学. 材料学

办公地点:大连理工大学新三束实验室410

联系方式:0411-84706400

电子邮箱:yhli@dlut.edu.cn

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Fabrication and electrocatalytic properties of ferromagnetic nanoporous PtFe by dealloying an amorphous Fe60Pt10B30 alloy

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论文类型:期刊论文

发表时间:2017-06-05

发表刊物:JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物:SCIE、EI

卷号:706

页面范围:215-219

ISSN号:0925-8388

关键字:Pt-Fe alloy; Nanoporous metals; Dealloying; Electrocatalysis; Amorphous alloy

摘要:A nanoporous PtFe (np-PtFe) alloy composed of a single face-centered-cubic FePt phase has been fabricated by electrochemically dealloying an amorphous Fe60Pt10B30 alloy in 0.1 mol L-1 H2SO4 solution. The np-PtFe alloy possesses a fine bicontinuous ligament/channel structure with average ligament and pore sizes of about 7 and 5 nm, respectively. The np-PtFe alloy exhibits superior electrocatalytic activity for methanol oxidation reaction in the acid media to the commercial Johnson Matthey Pt/C catalyst and soft magnetic characteristics with a saturation magnetization of 19.09 emu/g. (C)2017 Elsevier B.V. All rights reserved.