摘要
以硝酸铜（Cu（NO3）2）为原料，以六次甲基四胺（C6H12N4）为模板剂，采用水热合成法制备CuO微纳米颗粒，通过扫描电镜和x射线衍射仪对产物的组成及形貌进行表征，并将合成粉体制备成敏感膜，通过静态配气法对产物气敏性能进行研究．结果表明：在硝酸铜和六次甲基四胺的摩尔比为1：45，水热温度为110℃的条件下，制备出粒径1～2μm大小的纺锤状氧化铜粉体，其中纺锤结构是由100nm左右的纳米片组成．另外，纳米氧化铜对丙酮（CH，COCH3）和硫化氢（H2S）气体有较好的选择性，进一步掺杂0．25％～1．25％的贵金属催化剂铂（Pt）后，氧化铜对硫化氢显示出了良好的选择性，且灵敏度有一定程度的提高．
Micro/Nano-particles of CuO were prepared with hexamethylenetetramine template. The composi- tion and morphology of the product were characterized by SEM and X-ray diffraction. The synthetic powder was prepared as sensitive membrane, and its gas sensitivity was studied with a static gas distribution method. The results indicated that the uniform copper oxide powders was synthesized at the 110℃ , and the molar ratio be- tween copper nitrate and hexamethylenetetramine was 1：45. The spindle structure was around 1 -2 μm, and was composed of 100 nm nanoplates. The sensor had better selectivity with CH3COCH3 and H2S. Copper ox- ide showed good selectivity to hydrogen sulfide and its sensitivity had a certain degree of improvement after fur-ther doping 0. 25% ~ 1.25% noble metal catalyst Pt.
作者
胡校兵
谢祯芳
谢骥
解丽丽
朱志刚
HU Xiaobing XIE Zhenfang XIE Ji XIE Lili ZHU Zhigang(School of Environmental and Materials Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China)
出处
《郑州大学学报（工学版）》
CAS
北大核心
2016年第6期10-14,共5页
Journal of Zhengzhou University（Engineering Science）
基金
国家自然科学基金资助项目(61471233)
上海高校特聘教授(东方学者)计划
上海市科委基础研究重点项目(13NM1401300)
上海市教委曙光计划项目(14SG52)
上海市人才基金资助项目(201346)
关键词
气体传感器
氧化铜颗粒
水热法
掺杂
gas sensor
copper oxide particles hydrothermal method
doping
