Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5350381 | Applied Surface Science | 2015 | 7 Pages |
Abstract
Nanocrystalline Sn-Ni/MWCNT composite was prepared by ultrasonic-pulse electrodeposition on a copper substrate in a pyrophosphate bath at different duty cycles. Surface morphology of produced Sn-Ni/MWCNT composites were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) was conducted to understand the elemental surface composition of composites. X-ray diffraction analysis (XRD) was carried out to investigate structure of Sn-Ni/MWCNT composites. The electrochemical performance of Sn-Ni/MWCNT composite electrodes were investigated by charge/discharge tests and cyclic voltammetric experiments. The cells discharge capacities were determined by cyclic testing by a battery tester at a constant current in voltage range between 0.02Â V and 1.5Â V. The duty cycle was shown to be a crucial factor to improve Sn-Ni/MWCNT composite anodes for cyclability and reversible capacity.
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Authors
Mehmet Uysal, Tugrul Cetinkaya, Ahmet Alp, Hatem Akbulut,