基于NiO纳米薄膜的NO2传感器

doi:10.12068/j.issn.1005-3026.2018.12.019

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (12): 1769-1773.DOI: 10.12068/j.issn.1005-3026.2018.12.019

基于NiO纳米薄膜的NO₂传感器

赵思凯，钟祥熙，周鹏飞，沈岩柏

(东北大学资源与土木工程学院，辽宁沈阳110819)

收稿日期:2017-09-15 修回日期:2017-09-15 出版日期:2018-12-15 发布日期:2018-12-19
通讯作者: 赵思凯
作者简介:赵思凯(1991-)，男，四川广元人，东北大学博士研究生；沈岩柏(1978-)，男，黑龙江密山人，东北大学教授，博士生导师.冯明杰(1971-)，男，河南禹州人，东北大学副教授; 王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51171041).国家自然科学基金资助项目 (51422402， 51674067)；中央高校基本科研业务费专项资金资助项目 (N150101001，N160106004).

NO₂ Gas Sensor Based on NiO Nanofilms

ZHAO Si-kai， ZHONG Xiang-xi， ZHOU Peng-fei， SHEN Yan-bai

School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.

Received:2017-09-15 Revised:2017-09-15 Online:2018-12-15 Published:2018-12-19
Contact: SHEN Yan-bai
About author:-
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摘要/Abstract

摘要： 以四水合乙酸镍(NiC₄H₆O₄·4H₂O)、氨水(NH₃·H₂O)和乙二醇甲醚(C₃H₈O)为前驱体，采用溶胶–凝胶提拉涂膜法制备NiO纳米薄膜，考察了提拉速度与涂膜层数对NiO纳米薄膜形貌结构与NO₂气敏特性的影响.结果表明，在提拉速度为400μm/s，涂膜层数为2层的条件下可获得表面形貌均一、疏松多孔的NiO纳米薄膜，其主要由直径为20~30nm面心立方结构的NiO晶体颗粒构成.气敏检测结果表明，NiO纳米薄膜呈现p型半导体特性，在工作温度150℃条件下对NO₂表现出良好的响应-恢复特性与可逆性，并对其气敏机理进行了探讨.

关键词: NiO纳米薄膜, 溶胶–凝胶法, NO₂, 气敏特性, 气敏机理

Abstract: NiO nanofilms were synthesized by sol-gel dip-coating method using the mixture of NiC₄H₆O₄·4H₂O， NH₃·H₂O and C₃H₈O as the precursor. The effects of pulling speed and coating layer on the morphology， structure and NO₂ sensing properties of NiO nanofilms were investigated. Uniform and porous NiO nanofilms were obtained under the preparation conditions of pulling speed of 400μm/s and coating layer of 2. The films were composed of cubic nanocrystalline NiO particles with the diameter of 20~30nm. NO₂ sensing measurements demonstrated that NiO nanofilms with p-type semiconductor characteristic show good response-recovery properties as well as excellent reversibility. NO₂ sensing mechanism of NiO nanofilms was investigated and discussed.

Key words: NiO nanofilm, sol-gel method, NO₂, gas sensing properties, gas sensing mechanism

中图分类号:

TP212

赵思凯，钟祥熙，周鹏飞，沈岩柏. 基于NiO纳米薄膜的NO₂传感器[J]. 东北大学学报:自然科学版, 2018, 39(12): 1769-1773.

ZHAO Si-kai， ZHONG Xiang-xi， ZHOU Peng-fei， SHEN Yan-bai. NO₂ Gas Sensor Based on NiO Nanofilms[J]. Journal of Northeastern University Natural Science, 2018, 39(12): 1769-1773.

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基于NiO纳米薄膜的NO₂传感器

NO₂ Gas Sensor Based on NiO Nanofilms

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