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Indexed by:期刊论文

Date of Publication:2017-06-05

Journal:JOURNAL OF ALLOYS AND COMPOUNDS

Included Journals:SCIE、EI

Volume:706

Page Number:215-219

ISSN No.:0925-8388

Key Words:Pt-Fe alloy; Nanoporous metals; Dealloying; Electrocatalysis; Amorphous alloy

Abstract: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.