Journal
ELECTROCHIMICA ACTA
Volume 163, Issue -, Pages 102-106Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.02.099
Keywords
copper(II) hydroxide/oxide; nanorods array; in situ; oxygen evolution; electrocatalysis
Categories
Funding
- National Natural Science Foundation of China [21175129]
- National Basic Research Program of China [2011CB935800]
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In this paper, we develop a novel strategy toward the in-situ growth of core/shell nanorods array consisting of Cu(OH)(2)-CuO nanosheets as the shell and Cu as the core on Cu foil [Cu/(Cu(OH)(2)-CuO) NA/CF]. As an integrated 3D non-noble-metal oxygen evolution anode, the Cu/(Cu(OH)(2)-CuO) NA/CF shows high catalytic activity with an onset overpotential of 350 mV and a Tafel slope of 76 mV/dec. It needs an overpotential of 417 mV to drive current density of 10 mA/cm(2) and maintains its catalytic activity for at least 22 h. The attractive performances make it promising candidate as a future high-performance catalyst for applications. (C) 2015 Elsevier Ltd. All rights reserved.
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