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氧化銅摻雜氧化鋅氣敏材料的制備及氣敏性能研究

發(fā)布時(shí)間:2018-11-23 08:41
【摘要】:本文利用水熱法制備氧化銅摻雜的堿式碳酸鋅,并經(jīng)過高溫得到尺寸均勻的多孔氧化銅摻雜氧化鋅納米材料.用XRD、SEM等測(cè)試手段對(duì)材料的結(jié)構(gòu)和形貌進(jìn)行表征,并研究了摻雜前后多孔納米材料對(duì)硫化氫的氣敏性能.結(jié)果表明,氧化銅摻雜可以提升材料對(duì)硫化氫氣體響應(yīng)的靈敏度、選擇性和穩(wěn)定性,材料對(duì)H2S的最佳響應(yīng)溫度降低至180℃,對(duì)10 mg/L硫化氫的靈敏度可以達(dá)到60,對(duì)其他氣體響應(yīng)相對(duì)較弱,說明材料具有非常好的選擇性.該氧化銅摻雜多孔氧化鋅可適用于硫化氫氣敏傳感器.
[Abstract]:In this paper, copper oxide doped basic zinc carbonate was prepared by hydrothermal method, and porous copper oxide doped zinc oxide nanomaterials with uniform size were obtained by high temperature. The structure and morphology of the materials were characterized by XRD,SEM and the gas-sensing properties of porous nanomaterials before and after doping to hydrogen sulfide were studied. The results show that copper oxide doping can improve the sensitivity, selectivity and stability of the material to hydrogen sulfide gas. The optimum temperature of the material for H 2S is reduced to 180 鈩,

本文編號(hào):2350939

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