用配位沉淀法在柠檬酸体系中合成了纳米CdS,用X-射线衍射(XRD)对产物进行物相分析,结果表明产物为立方闪锌矿结构,其粒径为25nm左右.将样品制成旁热式气敏元件进行测试,结果表明以CdS为基体的气敏元件在230℃时对0.005vol%乙醇气体的灵敏度高达45,对汽油、甲醇、丙酮等气体具有较好的选择性.
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