摘要
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纳米材料是一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)。
1D Pt/SnO2 hollow nanofibers were synthesized by electrospinning method to prepare and to study the nanomaterials with the higher sensitivity and faster response to NOx at room temperature. The characteristics and morphology of material were studied by XRD, SEM and TEM. NOx 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/VNOx, 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.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2013年第6期584-588,共5页
Journal of Inorganic Materials
基金
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)~~
