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（Al，Sb）／ZnO復(fù)合氧化物對(duì)乙醇?xì)怏w氣敏功能特性的影響
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TN304.21

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Sensing Properties of the ZnO Based Composite Oxide (Al,Sb)/ZnO to C2H5OH Gas
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    摘要:

    用可溶性無(wú)機(jī)鹽法制備了較寬工作溫度范圍的納米(Al，Sb)/ZnO氣敏材料。該材料主相屬于ZnO纖鋅礦結(jié)構(gòu)，并同時(shí)存在Sb2O5、Sb6O132種微量雜相。該復(fù)合氧化物的平均晶粒為86nm。用制備的氧化物納米粉做成氣敏元件，測(cè)試了不同鋁含量的納米材料在2000μg/g濃度乙醇?xì)怏w下的敏感特性。當(dāng)鋁含量為Al/ZnO=1．5％(mol比，下同)時(shí)，對(duì)2000μg的乙醇?xì)怏w的靈敏度最大可達(dá)到26。固定Al/ZnO=3％時(shí)，摻入不同量銻得到對(duì)乙醇?xì)怏w有更大工作溫度范圍的納米復(fù)合氧化物材料。同時(shí)討論了摻鋁摻銻復(fù)合氧化物對(duì)敏感氣體的物理吸附和化學(xué)吸附及其氣敏機(jī)理。

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    Nanometer ZnO-base composite oxides were prepared by the inorganic salt sol-gel(ISG) method, and their structures were studied using XRD. The gas sensors were prepared from the nanometer ZnO-base composite oxides, and their sensing properties to different concentration of C2H5OH gases were investigated. A composition of Al/ZnO=1.5 mol% sensor shows a maximum sensitivity of 26 to 2 000 g/g C2H5OH. The composite oxide Sb/Al/ZnO=5?3?100(mol)% has good gas sensing properties over wider working temperature range. The physical and chemical adsorptions and the gas-sensing mechanism of the composite oxide Sb/Al/ZnO were discussed.

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薛天鋒 胡季帆 秦宏偉 周瑩 安康 張玲 韓濤 李玉香.（Al，Sb）／ZnO復(fù)合氧化物對(duì)乙醇?xì)怏w氣敏功能特性的影響[J].稀有金屬材料與工程,2004,33(9):1006~1008.[Xue Tianfeng, Hu Jifan, Qin Hongwei, Zhou Ying, An Kang, Zhang Ling, Han Tao, Li Yuxiang. Sensing Properties of the ZnO Based Composite Oxide (Al, Sb)/ZnO to C2H5OH Gas[J]. Rare Metal Materials and Engineering,2004,33(9):1006~1008.]
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  • 最后修改日期:2004-04-30
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