为了获得纳米级的CuO-SnO2气敏粉体和所得粉体制作成CO2气体有好的气敏性能的气敏元件,用Sol-Gel法进行制备,运用DSC-TG、XRD、TEM等分析手段对不同热处理温度和不同配比浓度的粉体进行了表征,并对制成的气敏元件进行气敏性能测试;通过对所得粉体的表征可知,用Sol-Gel法制备出的CuO-SnO2粉体是纳米级的,比表面积大,活性好,其最佳热处理温度为600℃.CuO摩尔分数为4%的CuO-SnO2气敏元件对CO2气体有最好灵敏度,且有较好的选择性,响应和恢复时间也在可应用的范围之内.
参考文献
| [1] | Galdikas A;Mironas A;Setkus A .Copper-doping level effect on sensitivity and selectivity of tin oxide thin gas sensor[J].Sensors and Actuators B-Chemical,1995,26-27:29-32. |
| [2] | Li G J;Kawi S .High-surface-area SnO2:a novel semiconductor-oxide gas sensor[J].Materials Letters,1998,34:99-102. |
| [3] | 黄德欢.纳米技术与应用[M].上海:中国纺织大学出版社,2001:4-5. |
| [4] | 王世敏;许祖勋;傅晶.纳米材料制备技术[M].北京:化学工业出版社,2001:95-106. |
| [5] | M. Ferroni;M. C. Carotta;V. Guidi;G. Martinelli;F. Ronconi;M. Sacerdoti;E. Traversa .Preparation and characterization of nanosized titania sensing film[J].Sensors and Actuators, B. Chemical,2001(1/2):163-166. |
| [6] | Tong M S et al.Gas-sensing properties of PdO--modified SnO2-Fe2O3 double-layer thin-film sensor prepared by PECVD technique[J].Sensors and Actuators B-Chemical,2000,25:877-884. |
| [7] | Eun-Tae et al.Fabrication and gas sensing properties of α-Fe2O3 thin prepared by plasma enhanced chemical vapor deposition[J].Sensors and Actuators B:Chemical,2001,77:221-227. |
| [8] | Duk-dong Lee.Thick-film hydrocarbon gas sensors[J].Sensors and Actuators B-Chemical,1990(01):231-235. |
| [9] | Cullity B D.Elements of X-ray diffraction[M].California:Addison-Wesley Publishing Company,Inc,1978:284. |
| [10] | 方国家 等.CuO-SnO2纳米晶粉料的Sol-Gel制备及表征[J].无机材料学报,1996,11(03):537-541. |
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