一维Pt/SnO2纳米纤维的制备及NOx气敏性研究

doi:10.3724/SP.J.1077.2013.12455

无机材料学报 ›› 2013, Vol. 28 ›› Issue (06): 584-588.DOI: 10.3724/SP.J.1077.2013.12455 CSTR: 32189.14.SP.J.1077.2013.12455

一维Pt/SnO₂纳米纤维的制备及NO_x气敏性研究

徐爽, 杨颖, 邬洪源, 江超, 井立强, 史克英

(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)

收稿日期:2012-07-21 修回日期:2012-09-19 出版日期:2013-06-20 网络出版日期:2013-05-20
作者简介:徐爽(1989–), 女, 硕士研究生. E-mail: xushuangbest@163.com
基金资助:
黑龙江省自然科学基金(ZD201002); 黑龙江省教育厅科技技术面上项目(12511144); 黑龙江省青年科学基金 (QC2010122); 黑龙江大学高层次人才(创新团队)支持计划(Hdtd2010-02)

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

XU Shuang, YANG Ying, WU Hong-Yuan, JIANG Chao, JING Li-Qiang, SHI Ke-Ying

(Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, Harbin 150080, China)

Received:2012-07-21 Revised:2012-09-19 Published:2013-06-20 Online:2013-05-20
About author:XU Shuang. E-mail: xushuangbest@163.com
Supported by:
Key Projects of the Natural Science Foundation of Heilongjiang Province (ZD201002); Science and Technology General Project of the Education Department of Heilongjiang Province (12511144); Project of Heilongjiang Province Science Funds for Young Scholar (QC2010122); Support Plan of High-level Professionals (Innovative Team) of Heilongjiang University (Hdtd2010-02)

摘要/Abstract

摘要： 为了制备出室温条件下对NO_x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一维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NO_x的气敏性能测试并予以探讨。研究结果表明: Pt/SnO₂纳米材料是一维中空管状及类似管状结构; 当Pt掺杂量为0.3wt%、NO_x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NO_x检测限最低浓度可达2.91×10^-6 (V/V)。

关键词: 高压静电纺丝, Pt掺杂, SnO₂, NO_x气敏性

Abstract: 1D Pt/SnO₂ hollow nanofibers were synthesized by electrospinning method to prepare and study the nanomaterials with the higher sensitivity and faster response to NO_x at room temperature. The characteristics and morphology of material were studied by XRD, SEM and TEM. NO_x gas sensor was tested at room temperature. The results show that the 1D Pt/SnO₂ nanomaterials is hollow tubular and similar tubular structure. The sample with 0.3wt% Pt has the highest sensitivity, the fastest response to 9.7×10^-5 V/V NO_x, the sensitivity up to 109.6% and response time of 11.33 s. When the sample is doped with Pt 0.5wt%, its limit level is 2.91×10^-6 V/V.

Key words: electrospinning, Pt-doped, SnO₂, NO_x gas sensor

中图分类号:

O643
O614

徐爽, 杨颖, 邬洪源, 江超, 井立强, 史克英. 一维Pt/SnO₂纳米纤维的制备及NO_x气敏性研究[J]. 无机材料学报, 2013, 28(06): 584-588.

XU Shuang, YANG Ying, WU Hong-Yuan, JIANG Chao, JING Li-Qiang, SHI Ke-Ying. Preparation of One-dimensional Pt/SnO₂ Nanofibers and NO_x Gas-sensing Properties[J]. Journal of Inorganic Materials, 2013, 28(06): 584-588.

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一维Pt/SnO₂纳米纤维的制备及NO_x气敏性研究

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

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