作　　者： ; ; ; ; ;

机构地区： 安徽工业大学化学与化工学院

出　　处： 《安徽工业大学学报（自然科学版）》 2016年第2期119-125,共7页

摘　　要： 以葡萄糖作为碳源,采用水热法制备纳米碳球,并将其作为造孔剂制备ZnO多孔材料。分别用扫描电镜、透射电镜、X射线衍射仪、氮吸附比表面积测试仪对材料进行表征,并研究ZnO多孔材料对应元件的气敏性能。实验结果表明:添加50 m L纳米碳球制备出的ZnO多孔材料其对应元件对乙酸表现出高灵敏度和较好的选择性;在相对湿度为50%,工作温度为310℃时,该材料对应元件对体积分数为1 000×10-6乙酸的灵敏度为393.8,为纯ZnO材料的63.6倍。 ZnO porousmaterials were synthesized with carbon nanospheres as pore former, which were prepared from glucose by hydrothermal method. The synthesized ZnO porousmaterials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and N2 adsorption-desorption, respectively. The gas-sensing properties of ZnO porousmaterials were investigated. The experimental results show when ZnO porousmaterials are prepared by doping with 50 mL of carbon nanospheres, the highest sensitivity is obtained under the optimal conditions. The response reaches 393.8 when the volume fraction of acetic acid is 1 000×10- 6 at the operating temperature of 310 ℃ with the relative humidity (RH) of 50%, which is 63.6 times as high as that of pure ZnO porousmaterials.

关 键 词： 多孔材料 纳米碳球 气敏性能 乙酸

领　　域： [理学] [理学]