[期刊论文][research article]


Synthesis of Copper Nanoparticles by Pulsed Electrochemical Dissolution Process

作   者:
Muneer Alam;N. K. Jain;Sunil Pathak;

出版年:2019

页     码:602 - 608
出版社:American Chemical Society


摘   要:

Thisarticle reports on the cost-effective electrolytic synthesisof copper nanoparticles using copper sulfate as metal precursor. Anin-house experimental apparatus of pulsed-electrochemical dissolution(PECD) process has been conceptualized and developed. Generated nanoparticleswere characterized using X-ray diffraction (XRD), scanning electronmicroscope (SEM), and energy-dispersive X-ray spectroscopy (EDX) toanalyze their size, morphology, and chemical composition. Experimentswere conducted in two phases, namely preliminary and main experiments.The preliminary experiments were done to study the effects of electrolyteconcentration, interelectrode gap (IEG), and processing time on shapeand size of the nanoparticles. Average minimum sizes of the nanoparticlesobtained during the preliminary experiments were found to be 150 nmat identified optimum parameters, that is, 5 wt % as electrolyte concentration,30 min as processing time, and 10 mm as IEG. These identified optimumvalues were used during the main experiments conducted to identifyoptimum values of applied voltage, pulse-on time, and pulse-off time.Average minimum size of the particles obtained during the main experimentswas found to be 70 nm at the identified optimum value of the parametersnamely voltage as 8 V, pulse-on time as 4 ms, and pulse-off time as8 ms.



关键字:

暂无


所属期刊
Industrial And Engineering Chemistry Research
ISSN: 0888-5885
来自:American Chemical Society