【摘 要】
：
通过水热法成功地制备了Co3O4/ZnO复合材料系列样品。利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对系列样品进行了成分、形貌和结构表征。结果表明,Co3O4的复合成功地阻止了
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通过水热法成功地制备了Co3O4/ZnO复合材料系列样品。利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对系列样品进行了成分、形貌和结构表征。结果表明,Co3O4的复合成功地阻止了ZnO晶粒的生长,达到细化晶粒的作用。在气敏测试中,发现当工作温度为240℃时,复合材料的气敏性能明显优于纯ZnO。其中样品ZC-14对50 ppm三乙胺气体的灵敏度达到77.3,是纯ZnO样品的4倍,且具有较快的响应(6 s)和恢复(13 s)特性,最低检出限达到1 ppm。同时,我们还发现ZC-14具有良好的重复性和稳
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