脱合金法制备Fe基纳米多孔材料及其催化性能

doi:10.11896/j.issn.1005-023X.2018.16.023

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Abstract Recently, nanoporous metal materials are the focus in catalysis and sensor fields. In this study, Fe-based amorphous alloy was chosen as a raw material, and the nanoporous materials with catalytic properties were prepared by dealloying. Fe₆₀-Pd₂₀P₂₀ amorphous alloy ribbons with 1 mm in width and 25 μm in thickness were prepared by vacuum melting and rapid solidification, and the amorphous alloy ribbons were characterized by XRD, SEM and EDS. The Fe₆₀Pd₂₀P₂₀ alloy was used as a starting alloy for potentiostatic dealloying in 1 mol/L H₂SO₄ solution at 25 ℃. The nanoporous amorphous alloy with an uniform 3-D interconnect structure was successfully prepared. The electrochemical tests showed that this nanoporous amorphous alloy exhibited high electrocatalytic activity for the decomposition of formic acid. Compared with the original amorphous alloy untreated by dealloying, the oxidation peak potential had a negative shift of 0.4 V in 0.5 mol/L H₂SO₄+0.5 mol/L HCOOH solution as well as the oxidation peak current density increased by 15 times. The nanoporous material has obvious catalytic activity for the decomposition of formic acid.

Key words： amorphous alloy nanoporous material dealloying electrochemistry catalytic performance

Published: 18 September 2018

CLC number:

TB332

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	Articles by authors
	ZHENG Jibo
	LI Xue
	LU Gonghao
	NING Jialin
	LI Xining

Cite this article:

ZHENG Jibo,LI Xue,LU Gonghao, et al. Preparation and Electrocatalytic Performance of Fe-based Nanoporous Alloys by Dealloying[J]. Materials Reports, 2018, 32(16): 2828-2831.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.16.023 OR http://www.mater-rep.com/EN/Y2018/V32/I16/2828

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