二氧化钛纳米管的氢敏特性

来源 :硅酸盐学报 | 被引量 : 0次 | 上传用户：a98674591

【摘要】

：

利用廉价的工业TiO2粉末、通过超声-水热法制备Ti2纳米管,通过刮刀法将TiO2纳米管制各成厚膜气敏传感器.以N2为载气,考察了工作温度、氢气体积分数(下同)对TiO2纳米管氢气敏

【作者】

：

姬颖敏唐子龙张中太周志刚

【机构】

：

清华大学材料科学与工程系

【出处】

：

硅酸盐学报

【发表日期】

：

2004年期

【关键词】

：

二氧化钛纳米管气体传感器氢敏 titanium dioxide nanotube gas sensor hydrogen sensitivity

【基金项目】

：

国家重点基础研究发展计划(973计划);

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论文部分内容阅读

利用廉价的工业TiO2粉末、通过超声-水热法制备Ti2纳米管,通过刮刀法将TiO2纳米管制各成厚膜气敏传感器.以N2为载气,考察了工作温度、氢气体积分数(下同)对TiO2纳米管氢气敏感特性的影响.测试温度为150～250℃时,TiO2纳米管厚膜气敏传感器对氢气表现出良好的选择性和敏感性.当氢气体积分数为5%时,TiO2纳米管电阻变化达到2～4个数量级.传感器的气敏机理认为是TiO2纳米管表面对于氢气分子的化学吸附.

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二氧化钛纳米管的氢敏特性

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