Enhanced NO sensor based on Pt nanoparticle-modified La0.8Sr0.2FeO3

WANG Jie; WANG Xiaoli; ZHOU Mingjun; CHENG Zhenqian; ZOU Jie; JIAN Jiawen

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Enhanced NO sensor based on Pt nanoparticle-modified La_0.8Sr_0.2FeO₃

Research & Approach | 更新时间：2026-03-18

- Enhanced NO sensor based on Pt nanoparticle-modified La_0.8Sr_0.2FeO₃
- Vol. 45, Issue 3, Pages: 57-61(2026)
- 作者机构：
  
  1. 宁波大学信息科学与工程学院,浙江,宁波,315211
  2. 中国电子科技集团公司第四十九研究所,黑龙江,哈尔滨,150028
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212
- Published：2026
- 稿件说明：
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WANG Jie, WANG Xiaoli, ZHOU Mingjun, et al. Enhanced NO sensor based on Pt nanoparticle-modified La_0.8Sr_0.2FeO₃ [J]. 2026, 45(3): 57-61.
DOI：

WANG Jie, WANG Xiaoli, ZHOU Mingjun, et al. Enhanced NO sensor based on Pt nanoparticle-modified La_0.8Sr_0.2FeO₃ [J]. 2026, 45(3): 57-61. DOI：

摘要

基于铂(Pt)对氮氧化物（NO

）的显著催化能力，设计并制备了一种新型的一氧化氮（NO）敏感材料，并对其气敏特性进行了测试。通过浸渍法制备了基于Pt纳米颗粒（PtNPs）修饰的LaLa

0.8

0.2

FeO

（LSF）金属氧化物半导体NO传感器。研究结果显示:在最佳工作温度（200℃）下，基于1%vol PtNPs修饰的样品表现出优异的气敏特性，具有160.5×10

-6

的灵敏度，相较于未经PtNPs修饰的样品，提高了近一倍。在长期稳定性测试中，传感器的响应波动不超过5%。同时，该传感器具有良好的选择性和一致性。这些结果表明：PtNPs的催化作用是提高气敏特性的主要原因。

Abstract

Based on notable catalytic capability of platinum(Pt)to nitrogen oxides(NO

)

a novel nitric oxide(NO)sensitive material is designed and synthesized

and its gas-sensitive characteristics are tested.The La

0.8

0.2

FeO

(LSF)modified by Pt nanoparticles(PtNPs)metal oxide semiconductor NO sensor is prepared through the impregnation method.The research result shows that

at the optimum operating temperature of 200℃

the sensor modified by 1% vol PtNPs exhibits outstanding gas sensing properties

chieving a sensitivity of 160.5/10

-6

the performance is nearly doubled compared to the unmodified sample.During long term stability tests

response fluctuations of the sensor is not more than 5%.Additionally

the sensor exhibits excellent selectivity and consistency.These results show that catalytic role of PtNPs is the primary factor enhancing the gas sensitive characteristics.

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