—维Pt/SnO2纳米纤维的制备及NOx气敏性研究

无机材料学报, 2013, 28(6): 584-588. doi: 10.3724/SP.J.1077.2013.12455

—维Pt/SnO2纳米纤维的制备及NOx气敏性研究

徐爽 ^1, , 杨颖 ^2, , 邬洪源 ^3, , 江超 ^4, , 井立强 ^5, , 史克英 ^6,

1.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

2.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

3.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

4.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

5.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

6.黑龙江大学功能无机材料化学教育部重点实验室,哈尔滨,150080

基金项目: Support Plan of High-level Professionals (Innovative Team) of Heilongjiang University(Hdtd2010-02) 黑龙江省青年科学基金(QC2010122) 黑龙江省自然科学基金(ZD201002) Science and Technology General Project of the Education Department of Heilongjiang Province(12511144) 黑龙江省教育厅科技技术面上项目(12511144) Project of Heilongjiang Province Science Funds for Young Scholar(QC2010122) Key Projects of the Natural Science Foundation of Heilongjiang Province(ZD201002) 黑龙江大学高层次人才(创新团队)支持计划(Hdtd2010-02)

关键词：高压静电纺丝 , Pt掺杂 , SnO2 , NOx气敏性

Preparation of One-dimensional Pt/SnO2 Nanofibers and NOx Gas-sensing Properties

Keywords： electrospinning , Pt-doped , SnO2 , NOx gas sensor

为了制备出室温条件下对NOx气体具有更高灵敏度和更快响应的传感器纳米材料并研究其气敏性能,本研究通过高压静电纺丝法制备出—维Pt/SnO2中空纳米纤维.采用XRD、SEM、TEM等表征手段对其结构和形貌进行研究,同时进行了NOx的气敏性能测试并予以探讨.研究结果表明:Pt/SnO2纳米材料是—维中空管状及类似管状结构；当Pt掺杂量为0.3wt％、NOx浓度为9.7×10-5(V/V)时,NOx响应最快为11.33 s,灵敏度最高可达109.6％;当Pt掺杂量为0.5wt％时,对NOx检测限最低浓度可达2.91×10-6(V/V).

参考文献

[1]	XU Lin,DONG Biao,SONG Hong-Wei,et al.Porous In2O3:RE (RE=Gd,Tb,Dy,Ho,Er,Tm,Yb) nanotubes:electrospinning preparation and room gas-sensing properties.J.Phys.Chem.C,2010,114(19):9089-9095.
[2]	Wang B,Zhu L F,Yang Y H,et al.Fabrication ofa SnO2 nanowire gas sensor and sensor performance for hydrogen.J.Phys.Chem.C 2008,112(17):6643-6647.
[3]	XU Peng-Cheng,CHENG Zhi-Xuan,PAN Qing-Yi,et al.High aspect ratio In2O3 nanowires:synthesis,mechanism and NO2 gas-sensing properties.Sensors and Actuators B,2008,130(2):802-808.
[4]	Varghese O K,Gong D,Paulose M,et al.Hydrogen sensing using titania nanotubes.Sensors and Actuators B,2003,93(1/2/3):338-344.
[5]	ZHOU Min-Jie,ZHU Hao-Jun,WANG Xi-Na,et al.CdSe nanotube arrays on ITO via aligned ZnO nanorods templating.Chem.Mater.,2010,22(1):64-69.
[6]	LI Dan,XIA You-Nan.Fabrication of titania nanofibers by electrospinning.Nano Letters,2003,3(4):555-560.
[7]	XING Jun,FANG Wen-qi,YANG Hua-gui,et al.TiO2-coated ultrathin SnO2 nanosheets used as photoanodes for dye-sensitized solar cells with high efficiency.Ind.Eng.Chem.Res.,2012,51(11)4247-4253.
[8]	CHEN Wei-fu,Lien Chia-hui,KUO Ping-Lin,et al.Enhanced stabilization and deposition of Pt nanocrystals on carbon by dumbbelllike polyethyleniminated poly(oxypropylene) diamine.J.Phys.Chem.B,2006,110(20):9822-9830.
[9]	LI Dan,XIA You-Nan.Direct fabrication of composite and ceramic hollow nanofibers by electrospinning.Nano Letters,2004,4(5):933-938.
[10]	XUE Xin-Yu,CHEN Zhao-Hui,WANG Tai-Hong,et al.One-step synthesis and gas-sensing characteristics of uniformly loaded Pt@SnO2 nanorods.J.Phys.Chem.C,2010,114(9):3968-3972.
[11]	JIANG Chao,ZHANG Guo,SHI Keying,et al.Facile synthesis of SnO2 nanocrystalline tubes by electrospinning and their fast response and high sensitivity to NOx at room temperature.Cryst.Eng.Comm.,2012,14(8):2739-2747.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网