化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (6) : 117-120.

新材料与新技术

α-MoO₃纳米棒的制备及其NO_x气敏研究

作者信息 +

Preparation of α-MoO₃ nanorods and their NO_x gas sensing performance

Lin Long¹, Lv Cheng¹, Li Hai²

Author information +

文章历史 +

Received		Published
2019-01-08		2019-06-20
Issue Date	Revised Date
2019-07-05	2019-01-08

PDF (2040K)

摘要

利用水热法制备了正交相三氧化钼(α-MoO₃)纳米棒,通过X射线衍射仪、扫描电子显微镜等研究分析了其微观形貌及结构,并测试了α-MoO₃纳米棒气敏元件对体积分数不同的氮氧化物(NO_x)的气敏性能。结果表明:α-MoO₃纳米棒气敏元件对NO_x气体显示出良好的气敏性能。在200℃的工作温度下,该气敏元件对体积分数 20×10^-6的NO₂气体的响应值可达23,同时气敏元件具有良好的气体选择性。

Abstract

The orthorhombic molybdenum trioxide (α-MoO₃) nanorods were prepared by hydrothermal method.The morphology and structure of the nanorods were analyzed by powder X-ray diffractometry (XRD) and scanning electron microscopy (SEM).The gas sensing properties of nanorods for different concentrations of NO_x were tested.The results showed that the α-MoO₃ gas sensor exhibited good gas sensitivity to NO_x gas.The gas sensing response to 20×10^-6 NO₂ was 23 at an operating temperature of 200℃.At the same time,the gas sensor showed good selectivity.

关键词

正交相三氧化钼 / 氮氧化物 / 气敏特性 / 纳米棒

Key words

orthorhombic molybdenum trioxide / nitrogen oxide / gas sensing property / nanorod

引用本文

引用格式 ▾

α-MoO₃纳米棒的制备及其NO_x气敏研究[J]. 化工新型材料, 2019, 47(6): 117-120 DOI:

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] 安俊琳,王跃思,李昕,等.北京大气中NO、NO₂和O₃浓度变化的相关性分析[J].环境科学,2007,28(4):4706-4711.
[2] Marley N A,Gaffney J S,White R V,et al.Fast gas chromatography with luminol chemiluminescence detection for the simultaneous determination of nitrogen dioxide and peroxyacetyl nitrate in the atmosphere[J].Rev Sci Instrum,2004,75(11):4595-4605.
[3] 曹玮.大气氮氧化物(NO_x)光解测量技术的应用开发[D].北京:北京大学,2013.
[4] Zhang J,Wang S R,Wang Y M,et al.NO₂ sensing perfor-mance of SnO₂ hollow-sphere sensor[J].Sens Actuat B Chem,2009,135(2):610-617.
[5] Luisa P,Niko M,Christian V,et al.Metal oxide semiconductor thin-film transistors for flexible electronics[J].Appl Phys Rev,2016,3(2):02303.
[6] 张清妍,周渠,彭姝迪,等.钴掺杂二氧化锡基氢气传感器气敏特性研究[J].传感技术学报,2017,30(9):1305-1309.
[7] 段凌瑶,侯超逸,陈闯,等.ZnO的水热合成及气敏性能研究[J].化工新型材料,2017,45(9):184-185.
[8] Li P,Fan H Q.Porous In₂O₃ microstructures:hydrothermal synthesis and enhanced Cl₂ sensing performance[J].Mater Sci Semiconduct Proc,2015,29(1):83-89.
[9] Li X G,Li X X,Wang J,et al.Highly sensitive and selective room-temperature formaldehyde sensors using hollow TiO₂ microspheres[J].Sens Actuators B Chem,2015,219:158-163.
[10] Yang S L,Wang Z,Hu Y M,et al.Defect-original room-temperature hydrogen sensing of MoO₃ nanoribbon:experimental and theoretical studies[J].Sens Actuators B Chem,2018,260:21-32.
[11] Huang S P,Xiao Q,Zhou H,et al.Hydrothermal synthesis and conductive properties of Al-doped ZnO rod-like whiskers[J].Alloys Compd,2009,486(1/2):24-26.
[12] Vijay K T,Surender Duhan.A facile nanocasting synthesis of mesoporous Ag-doped SnO₂ nanostructures with enhanced humidity sensing performance[J].Sens Actuators B Chem,2016,223:750-760.
[13] Zhou Q,Ahmad U,EI M S,et al.Fabrication and characterization of highly sensitive and selective sensors based on porous NiO nanodisks[J].Sens Actuators B Chem,2018,259:604-615.
[14] Hussain S,Liu T M,Javed H S,et al.Highly reactive 0D ZnS nanospheres and nanoparticles for formaldehyde gas-sensing properties[J].Sens Actuators B Chem,2017,239:1243-1250.
[15] Hashitha M,Munasinghe A,Dario Z,et al.Gold functionalized MoO₃ nanoflakes for gas sensing applications[J].Sens Actuators B Chem,2018,269:331-339.
[16] 肖绪锋,付星星,黄锐,等.Pt修饰MoO₃纳米线的室温甲醛传感特性研究[J].电子元件与材料,2018,37(8):50-55.
[17] Andreas T,Marco R,Sotitis E.Selective sensing of NH₃ by Si-doped α-MoO₃ for breath analysis[J].Sens Actuators B Chem,2016,223:266-273.
[18] Zhu L,Zeng W,Li Y Q,et al.Novel hollow MoO₃ cage structure and its gas sensing property[J].Mater Lett,2018,229:269-271.
[19] Shen J L,Guo S J,Chen C,et al.Synthesis of Ni-doped α-MoO₃ nanolamella and their improved gas sensing properties[J].Sens Actuators B Chem,2017,252:757-763.
[20] 王彩红.Zn₂SnO₄多面体的水热合成及气敏性能研究[J].化工新型材料,2018,46(2):190-192.