掺锶锌铁氧体纳米材料的合成及其在湿度传感中的应用

IF 3.2 4区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of the Indian Chemical Society Pub Date : 2024-10-18 DOI:10.1016/j.jics.2024.101439

Prabhat Ranjan Tiwari , Rahul Pratap Singh , Keval Bharati , Avinash Chand Yadav , Bala Bhardwaj , Bal Chandra Yadav , Ajeet Singh , Santosh Kumar

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引用次数: 0

摘要

湿度传感器是物联网（IoT）和人工智能（AI）的重要组成部分，目前主要用于非接触传感、电子皮肤、呼吸分析等领域。本研究采用溶胶-凝胶自动燃烧技术制备了掺锶锌铁氧体（ZnFe2O4）纳米材料。利用傅立叶变换红外光谱（FTIR）、粉末 X 射线衍射（PXRD）、能量色散 X 射线（EDX）和场发射扫描电子显微镜（FESEM）技术对合成材料进行了表征。锶的掺杂增加了晶格参数，减小了晶粒尺寸。首次利用合成的纳米粒子设计了湿度传感器，并研究了其多种湿度传感特性。所设计的湿度传感器的响应时间和恢复时间分别为 19 秒和 81 秒。本研究与以往报告的比较表明，所开发的湿度传感器在恢复时间、响应时间和材料方面都很有前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synthesis and application of strontium-doped zinc ferrite nanomaterial in humidity sensing

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Synthesis and application of strontium-doped zinc ferrite nanomaterial in humidity sensing

Humidity sensors, being an important component of the Internet of Things (IoT) and artificial intelligence (AI), are currently used in noncontact sensing, electronic skin, respiratory analysis, etc. In this study, the sol-gel auto-combustion technique was used to prepare strontium-doped zinc ferrite (ZnFe₂O₄) nanomaterials. The synthesized materials have been characterized using Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), energy dispersive X-ray (EDX), and field emission scanning electron microscopy (FESEM) techniques. The doping of strontium increases the lattice parameter and reduces the crystallite size. The synthesized nanoparticles were used to design a humidity sensor for the first time, and several humidity-sensing properties were investigated. The designed humidity sensor has a response and recovery times of 19 s and 81 s, respectively. It has low humidity hysteresis, excellent repeatability, and a minute ageing effect.

A comparison of the present study with previous reports suggests that the developed humidity sensor is promising in terms of recovery, response times, and material.

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来源期刊

Journal of the Indian Chemical Society 化学-化学综合

CiteScore

3.50

自引率

7.70%

发文量

492

审稿时长

3-8 weeks

期刊介绍： The Journal of the Indian Chemical Society publishes original, fundamental, theorical, experimental research work of highest quality in all areas of chemistry, biochemistry, medicinal chemistry, electrochemistry, agrochemistry, chemical engineering and technology, food chemistry, environmental chemistry, etc.