Journal
ELECTROCHIMICA ACTA
Volume 164, Issue -, Pages 182-186Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.02.126
Keywords
electrodeposition; nanowires; anneal; electrocatalytic activities
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Funding
- National Natural Science Foundation of China [51472165]
- Shenzhen Science and Technology Foundation Research Grant
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Platinum nanowires (NWs) were prepared by electrodeposition in porous anodic aluminum oxide (AAO) template and then annealed at 200 degrees C, 400 degrees C and 600 degrees C, respectively. Compared to the commercial carbon-supported Pt catalysts, all Pt NWs exhibited better electrocatalytic activities towards both methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). The MOR activity of the Pt NWs increased dramatically as the annealing temperature (T-A) increased, whereas the ORR activity followed the trend of 'as-prepared' > 600 degrees C > 400 degrees C > 200 degrees C. This phenomenon should be attributed to the NWs surface rearrangement during the annealing process. (C) 2015 Elsevier Ltd. All rights reserved.
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