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A bimetallic carbide Fe2MoC promoted Pd electrocatalyst with performance superior to Pt/C towards the oxygen reduction reaction in acidic media

Paper ID Volume ID Publish Year Pages File Format Full-Text
45596 46416 2015 6 PDF Available
Title
A bimetallic carbide Fe2MoC promoted Pd electrocatalyst with performance superior to Pt/C towards the oxygen reduction reaction in acidic media
Abstract

•A novel and stable bimetallic carbide Fe2MoC is synthesized.•Fe2MoC promoted Pd electrocatalyst shows superior activity and stability to Pt/C.•Inherent stability and electron-transfer of Fe2MoC to Pd lead to high performance.

Novel and stable bimetallic carbide (Fe2MoC) anchored on graphitized carbon (GC) has been synthesized by an ion-exchange method. The Pd supported on GC-Fe2MoC electrocatalyst (Pd/GC-Fe2MoC) shows superior activity and stability to commercial Pt/C for oxygen reduction reaction (ORR) in acidic media. The XPS spectra reveal that the excellent performance of Pd/GC-Fe2MoC should be due to the excellent electron-donating (synergistic effect) of Fe2MoC to Pd, which not only facilitates the reduction of O2 but also increases the linkage strength between Pd and Fe2MoC. The Koutecky-Levich plots indicate 4-electron transfer for the Pd/GC-Fe2MoC catalyzed ORR.

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Keywords
Bimetallic carbide Fe2MoC; Palladium electrocatalyst; Oxygen reduction reaction; Synergistic effect; Electrocatalysis
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A bimetallic carbide Fe2MoC promoted Pd electrocatalyst with performance superior to Pt/C towards the oxygen reduction reaction in acidic media
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 165, April 2015, Pages 636–641
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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