Journal
MATERIALS LETTERS
Volume 177, Issue -, Pages 71-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.04.169
Keywords
Ag2O/NiO ball-flowers; Porous materials; Nanocomposites; Energy storage and conversion
Funding
- National Natural Science Foundation of China [51302328]
- Fundamental Research Funds for the Central Universities [106112015CDJXY130006]
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Ag2O-loaded NiO ball-flowers were synthesized via a simple one-step hydrothermal method. The ball flower architecture is constructed by porous nanosheets modified by Ag2O. During the charge-discharge processes Ag2O can convert to metallic Ag to enhance the conductivity of electrode materials. The unique hierarchical ball-flower architectures can provide more active sites and diffusion paths for ions, increasing the utilization rate of electrode materials. Electrochemical measurements reveal that electrode materials based on Ag2O/NiO nanocomposites exhibited high specific capacitance value (556 F g(-1)) at a current density (1 A g(-1)), as well as an excellent capacitance retention of 103% after 1000 cycles. (C) 2016 Elsevier B.V. All rights reserved.
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