制备掺杂WO3的NiO纳米粉体材料并测量了材料的VOCs气敏性能.XRD分析表明,WO3掺杂使NiO粉体中出现新相NiWO4.随着WO3掺杂量增多,NiO的衍射峰半高宽明显宽化,WO3掺杂抑制了热处理过程中NiO晶粒的长大.50×10-6浓度二甲苯、甲醛、甲苯和乙醇等气体中的测量结果说明,WO3掺杂明显提高了NiO材料的VOCs气体灵敏度,对二甲苯的最佳掺杂量是5%,最大灵敏度为26.4,响应时间4s;对甲醛的最佳掺杂量是10%,最大灵敏度是4.67,响应时间6s.
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