ZnO基多孔阵列室温气体传感性能研究

项目名称： ZnO基多孔阵列室温气体传感性能研究

项目编号： No.50872039

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 轻工业、手工业

项目作者： 黄新堂

作者单位： 华中师范大学

项目金额： 35万元

中文摘要： 三年来，项目组围绕氧化锌基纳米结构材料的控制制备、形成机理及其传感器性能开展了研究工作。在氧化锌基纳米结构材料的控制制备和形成机理研究方面取得了两个具有特色的研究成果：应用Kirkendall 效应制备了高比表面积（919.63 m2 g-1）ZnO/carbon 纳米复合管阵列，相关研究结果发表在Chem. Commun.(2009)4548-4550上；以ZnO纳米棒阵列为模板，提出了"牺牲模板加速水解"实验方法，并制备了αe2O3 和C/αe2O3纳米管阵列，论文发表在Chem. Mater.22(2010)212-217上。在传感器性能研究方面，应用碳黑纳米颗粒为模板，得到了十纳米左右大小的氧化锡纳米颗粒，在复合小于5%含量的氧化镍后，其乙醇气体传感性能达到：探测极限5ppm,反应和恢复时间分别为3秒和2秒，灵敏度1.4，其结果将发表在Sensors and Actuators B: 上。该项目分别在国际期刊上发表29篇论文，申请中国发明专利2项。

中文关键词： 氧化锌基纳米材料；气体传感器；形成机理

英文摘要： The item group has worked on the control growth, mechanism and sensor property of based ZnO nanostructural materials for 3 years. Two outstanding characteristic research results were obtained in the fields of control growth and mechanism of based ZnO nanostructural materials: Applying the Kirkendall effect, the high surface area (919.63 m2 g-1)ZnO-carbon composite tubular arrays were obtained,and the result was published in Chem. Commun., (2009)4548-4550; The iron oxide-based nanotube arrays were synthetized using by presented "sacrificial ZnO template-accelerated hydrolysis" approach, the result was published in Chem. Mater. 2010, 22, 212-217. In the field of gas sensor property, applying the carbon black nanoparticle (100nm) as supporters, the 10 nm SnO2 nanoparticles were obtained, and mixed with 5% NiO, the ethanol gas sensor properties are: 5 ppm detection limit; 3 and 2 s response and recovery at this concentration respectively; and 1.4 sensitivity, the result will published in Sensors and Actuators B. With this item financial support, the research group published 29 SCI papers and asked for 2 Chinese patent applications.

英文关键词： ZnO nanomaterial; Gas sensor; mechanism