article·2013-05-20

一维Pt/SnO 2 纳米纤维的制备及NO x 气敏性研究

Xu Shuang, Ying Yang, WU Hong-Yuan, Chao Jiang, Liqiang Jing, Keying Shi

Abstract

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/SnO 2 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/SnO 2 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 )。
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials · ZnO doping and properties

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