摘要
用ＮＨ４）２ＣＯ３作沉淀剂制得Ｃｄ：Ｓｎ＝１：１的粉料，经７５０℃、１５ｈ热处理可得单相钛铁矿型β－ＣｄＳｎＯ３。元件的电导－温度（Ｇ－ｔ）特征表明β－ＣｄＳｎＯ３为典型的表面电阻控制型气敏材料，无需掺贵金属催化剂就对还原性气体响很高的灵敏度。因此，β－ＣｄＳｎＯ３很有希望作为一种新型的气敏材料体系。
A powder precursor with Cd: Sn= 1:1 has been prepared by (NH4)2CO3 as a precipitant. The Single-phase of ilmenite type β- CdSnO3 could be obtained by calcining the powder at 750℃ for 15 h. T]le G - t property of β-CdSnO3-based sensor suggest that it is a kind of a typical surface-controlled gas an sensing material. The β - CdSnO3- based sensor without adding noble metal as catalyst has a very high sensitivity to reducing gases. Soβ-CdSnO3 is a promising candidate for detecting reducing gases.
出处
《传感器技术》
CSCD
1996年第6期18-20,共3页
Journal of Transducer Technology
基金
国家自然科学基金
