| العنوان باللغة العربية : | |
| العنوان باللغة الانكليزية : | Preparation and characterization of magnetic nickel nanoparticles by chemical reduction reaction |
| المؤلف : | Saad H. Ammar |
| البريد الالكتروني : | saad_cheminet@yahoo.com |
| جهة انتساب المؤلف : | Al-Nahrain University |
| المشاركين : | Natheer Nori Ismail, Marwa F. Abdul Jabbar |
| المستفيدين : | |
| المستخلص : | The efficiency of many of conversion-processes in petroleum and industrial improves upon application of materials with the nanosized scale dimension, which is caused by enhancements and advances of improved properties asthe particle size decreases. Nickel nanoparticleshas numerousapplications in petroleum industry with its own catalytic in additional to the magnetic properties. In this study,high purity nanosized magnetic nickel particles has been effectively prepared by chemical reduction of nickel chloride using hydrazinehydrate as reducing agent in aqueous solutions containing ethylene glycol and waterand using polyvinylpyrrolidone (PVP) as anti-agglomeration agent. NanosizedNi particles samples with different hydrazineto nickel chloride mole ratios and PVP to nickel chloride ratios were obtained at constant temperature of 80 °C. The morphology and structural properties of the produced magnetic nickelnanoparticles were characterized by powder XRD and AFM methods. XRD study revealed that the prepared nanoparticles were pure nickel nanoparticles without considerable oxides or other impurity phases. AFM test revealed that all prepared Ni nanoparticles was in nano scale, it was stated that Ni nanoparticles size was very affected by the hydrazine/nickel mole ratio. Experimental results showed that particle size decreases from 94.35 nm to 71.48 nm when increases the [N2H4]/[Ni2+] molar ratio from 15:1 to 45:1. |
| المستخلص باللغة العربية : | |
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