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

doi:10.3724/SP.J.1077.2013.12455

Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (06): 584-588.DOI: 10.3724/SP.J.1077.2013.12455

• Research Paper • Previous Articles Next Articles

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)

Abstract

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

CLC Number:

O643
O614

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.

References

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

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