عنوان المقالة:HUMIDITY SENSING PROPERTIES OF COBALT OXIDE/SILICA NANOCOMPOSITES PREPARED VIA SOL–GEL AND RELATED ROUTES
جمعه عبدالجواد محمد على | Gomaa A. M. Ali | 20544
- نوع النشر
- مجلة علمية
- المؤلفون بالعربي
- OSAMA A. FOUAD, GOMAA A. M. ALI, M. A. I. EL-ERIAN, SALAH A. MAKHLOUF
- الملخص العربي
- Ultrafine Co3O4/SiO2 nanocomposites were obtained via sol–gel (SG) method and related routes. The samples were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and N2 adsorption–desorption techniques. The obtained phase, size of crystallites and specific surface area of the composites vary with the Co:SiO2 weight ratio and preparation route. Humidity sensing properties measured by monitoring the DC conductivity for the obtained nanocomposites are reported. Conductivity changes amount to four orders of magnitudes were observed in response to 10–90% relative humidity change in the measuring chamber. Results indicate that humidity sensing properties depend on Co content and specific surface area of the composite.
- تاريخ النشر
- 17/09/2012
- الناشر
- Nano
- رقم المجلد
- 7
- رقم العدد
- 5
- رابط DOI
- https://doi.org/10.1142/S1793292012500385
- رابط الملف
- تحميل (721 مرات التحميل)
- رابط خارجي
- http://www.worldscientific.com/doi/abs/10.1142/S1793292012500385
- الكلمات المفتاحية
- Cobalt Oxide/Silica, nanocomposites, sol–gel, humidity sensing