Details

Autor(en) / Beteiligte

• Ge, Jian-Ping
• Wang, Jin
• Zhang, Hao-Xu
• Wang, Xun
• Peng, Qing
• Li, Ya-Dong

Titel

High ethanol sensitive SnO 2 microspheres

Ist Teil von

• Sensors and actuators. B, Chemical, 2006-02, Vol.113 (2), p.937-943

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2006

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Comparing with the traditional method to make tin oxide (SnO 2) sensor material (hydrolysis of SnCl 4 in basic solutions), a novel CVD strategy has been investigated to prepare high sensitive SnO 2 microspheres. SnCl 2 is used as the precursor to form SnS 2 microsphere, which is composed of single-crystal SnS 2 sheet. Then, the sample is oxidized in air and transformed to polycrystalline SnO 2 microsphere. ▪ Comparing with the traditional method to make the tin oxide (SnO 2) sensor material (hydrolysis of SnCl 4 in basic solutions), a novel CVD strategy has been investigated to prepare highly sensitive SnO 2 microspheres. SnCl 2 was used as the precursor to form SnS 2 microspheres, which was composed of single-crystal SnS 2 sheet. Then, the sample was oxidized in air and transformed to polycrystalline SnO 2 microspheres. BET surface area and BJH pore diameter were measured with nitrogen adsorption at 77.36 K on a Chemsorb-3000 instrument. X-ray diffraction (XRD) and transmission electron microscopy (TEM) results showed the sample had small grain size, which made it highly sensitive to ethanol.