Preparation of conductive FTO nano-powders

• Main Authors: Chen-guang-yuan, 陳廣遠
• Other Authors: Ming-Shyong Tsai
• Format: Others
• Language: zh-TW
• Published: 100
• Online Access: http://ndltd.ncl.edu.tw/handle/45126199858123623583

碩士 === 南台科技大學 === 化學工程與材枓工程系 === 99 === In this study, we have prepared a soft-agglomerated tin dioxide powder by using a coprecipitation method. The conductivity of the formed powders by different reaction time were investigated the conductive. According to the in the experimental results, the best resistivity of tin dioxide powder was 0.251 Ω • cm after calcined at 500℃,and crystalline size was 4.7nm. Tin oxide nanoparticles could have a good dispersed property in pH~10 solution which was adjusted by NH4OH. Furthermore, we prepared FTO powders by doping different ammonium fluoride (NH4F). The FTO nanoparticles were calcined under various atmospheres and resistance results had been measured. The best of FTO powders were prepared under a normal atmosphere. The resistivity of FTO nanoparticles was 0.02 Ω • cm, and crystal size was 6.9nm as formed at 600℃.