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Crystal plane-dependent electrocatalytic activity of Co3O4 toward oxygen evolution reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
50211 46784 2015 5 PDF Available
Title
Crystal plane-dependent electrocatalytic activity of Co3O4 toward oxygen evolution reaction
Abstract

•First report of crystal plane effect of Co3O4 on electrocatalytic water oxidation•The {110} plane of Co3O4 is more active for OER catalysis than {100}.•In alkaline electrolytes, Co3 + is the active sites of Co3O4 for OER.

Crystalline structure and surface features of metal oxide catalyst have important influence on catalysis, however, no research work has focused on the relationship between the oxygen evolution reaction (OER) catalytic activity and plane effect of Co3O4 nanocrystals. In this work, Co3O4 nanorods and nanocubes with different dominant exposed nanocrystalline planes ({110} and {100}) were synthesized to investigate the plane effects of Co3O4 nanocrystalline on the OER activity. Results show that the surface Co3 + species of the Co3O4 crystal should be the active sites for OER catalysis.

Graphical abstractCo3O4 nanorods with different dominantly exposed {110} planes show better OER activity than nanocubes with mainly exposed {100} planes which show the plane effects of Co3O4 nanocrystalline on the OER activity.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Crystal plane; Co3O4; Co3 +; Active site; Electrocatalysis; Water oxidation
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Crystal plane-dependent electrocatalytic activity of Co3O4 toward oxygen evolution reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 67, 5 July 2015, Pages 78–82
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us