سال انتشار: ۱۳۸۷

محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو

تعداد صفحات: ۲

نویسنده(ها):

Azam Anaraki Firooz – Department of chemistry, University of Tarbiat Modares University
Ali Reza Mahjoub –
Abbas Ali Khodadadi – school of Chemical Engineering, University of Tehran, Tehran, Iran
Sanaz Mosadegh sedghi –

چکیده:

Hierarchical self-assemblies of nano-/micro-crystallites with specific morphology are of great interest in areas of chemistry and materials science because of their unique and exciting properties. Some reports indicate that the catalytic selectivity and sensitivity of these structures are significantly improved, compared with other shapes. SnO2 is an n-type semiconductor with a long band gap, and is well known for its applications in gas sensors [1], dye-base solar cells [2], optoelectronic devices [3], electrode materials [4] and catalysts. Thus, designing and preparing SnO2 materials with novel morphology are of significant importance in meeting the scientific and technological applications.In this paper, we synthesize SnO2 nanostructures with different morphology by solid-state reactions. We found that the as-prepared SnO2 materials with flower like morphology exhibit excellent sensitivity to CO gas and thus are expected to be useful in industrial applications such as gas sensors.