Cobalt chromite nano pigments synthesis through microwave-assisted polyol route
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, cilt.83, sa.3, ss.590-595, 2017 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 83 Sayı: 3
- Basım Tarihi: 2017
- Doi Numarası: 10.1007/s10971-017-4449-1
- Dergi Adı: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.590-595
- Eskişehir Osmangazi Üniversitesi Adresli: Evet
Özet
In this study, cobalt chromite (CoCr2O4) nano pigments were synthesized in a microwave oven at 180 A degrees C for 2 h by using corresponding metal acetates in diethylene glycol media. The resulting powders (as-synthesized and calcined) were successfully characterized by X-ray diffraction, thermogravimetry-differential scanning calorimetry, fourier transform infrared, field emission scanning electron microscopy and dynamic light scattering method. Results show that the as-prepared powders consist of amorphous compound with 30 nm average particle size. Upon calcination of this product, CoCr2O4 spinel phase starts forming at 400 A degrees C and stable spinel phase formation was completed at 700 A degrees C. The pigment calcined at 700 A degrees C for 3 h showed blue-green hue by ultraviolet-visible spectra. In addition, the particle size distribution remained nano size even after calcination.