Effect of Solution pH on Magnetization of Graphene/Cobalt Nanocomposite Synthesized via Electrodeposition/Exfoliation Technique

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 318

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شناسه ملی سند علمی:

ISPTC21_272

تاریخ نمایه سازی: 30 دی 1397

چکیده مقاله:

Recently, magnetic graphene-cobalt nanocomposites are suggested for application inphysical/chemical elements because of their controllability via external magnetic field, theirelectrical conductivity and magnetic properties [1]. One step electrodeposition/exfoliation hasfound great advantageous to manufacture graphene/metal nanocomposite. The graphene ispeeled off from graphite anode and metal electrodeposited within graphene flakes to form a finalcomposite [2]. In this research, by using one step electrochemical deposition/exfoliationtechnique, the effect of electrolyte pH on magnetic response of graphene/cobalt nanocompositeis studied. Optimum sample are characterized by X-ray diffraction, scanning electronmicroscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, Fourier transform infraredspectroscopy (FTIR) and vibration sample magnetometer (VSM). Optimum Sample contain acomposition of graphene flakes and Co crystals. SEM images and EDX spectroscopy showspherical and foliaceous particles that are scattered on foliate surface of extended graphene shell.The saturation magnetization of the graphene/cobalt nanocomposite is obtained to be 119 emu/g.The results of characterization promise that these nanocomposites are able to be used as catalystsor in targeted drug delivery.

نویسندگان

Seyedeh Fatemeh Aghaie Doost

Department of Physics, Alzahra University, Tehran

Narges Ansari

Department of Physics, Alzahra University, Tehran