Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/105706
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Type: Journal article
Title: Self-templating synthesis of hollow Co₃O₄ microtube arrays for highly efficient water electrolysis
Other Titles: Self-templating synthesis of hollow Co(3)O(4) microtube arrays for highly efficient water electrolysis
Author: Zhu, Y.
Ma, T.
Jaroniec, M.
Qiao, S.
Citation: Angewandte Chemie International Edition, 2017; 56(5):1324-1328
Publisher: John Wiley & Sons Ltd.
Issue Date: 2017
ISSN: 1433-7851
1521-3773
Statement of
Responsibility: 
YunPei Zhu, Tian Yi Ma, Mietek Jaroniec and Shi Zhang Qiao
Abstract: In spite of recent advances in the synthesis of hollow micro/nanostructures, the fabrication of three-dimensional electrodes on the basis of these structures remains a major challenge. Herein, we develop an electrochemical sacrificial-template strategy to fabricate hollow Co3 O4 microtube arrays with hierarchical porosity. The resultant unique structures and integrated electrode configurations impart enhanced mass transfer and electron mobility, ensuring high activity and stability in catalyzing oxygen and hydrogen evolution reactions. Impressively, the apparent performance can rival that of state-of-the-art noble-metal and transition-metal electrocatalysts. Furthermore, this bifunctional electrode can be used for highly efficient overall water splitting, even competing with the integrated performance of Pt/C and IrO2 /C.
Keywords: cobalt
electrocatalysis
microtubes
template synthesis
water splitting
Rights: © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
DOI: 10.1002/anie.201610413
Grant ID: http://purl.org/au-research/grants/arc/DP130104459
http://purl.org/au-research/grants/arc/DP140104062
http://purl.org/au-research/grants/arc/DP160104866
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Chemistry publications

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