Pulse Reverse Electrodeposition of Spherical Ni-MWCNT Composite Skein

Watt’s bath and pulse reverse (PR) electrodeposition is used to produce spherical nickelmultiwall carbon nanotubes (Ni-MWCNT) of ۲.۰۰, ۰.۹۳, ۱.۶۳ and ۶.۷۱ μm diameter and a variety ofsize distributions. For ۶۰ cycles, an absolute electrodeposition current of ۱۸ A/dm۲ is applied atcurrent ratios of ii = idissolution/ideposition = ۰, ۰.۰۷۷, ۰.۲۰۰ and ۰.۳۶۸. A simple exponential equation isfitted to each pulse response by a resistance-capacitance (RC) simple model giving different timeconstants usable for diagnosing the effect of different parameters. Results show that PRelectrodeposition is capable of producing microspherical Ni-MWCNT composite skeins of differentdiameters and size distributions. This could be identified with the time constant of the process.

کلیدواژه ها:

Ni Composite ، MWCNT ، Spherical Skein Composite ، Pulse Reverse Electrodeposition