All-aerosol-jet-printed Fe3+ modified bilayers polyaniline flexible room temperature sensor with enhanced ammonia sensing properties

IF 5.6 1区化学 Q1 CHEMISTRY, ANALYTICAL

Talanta Pub Date : 2025-02-01 DOI:10.1016/j.talanta.2025.127684

Shiji Liu , Liang Shuai , Qian Zhu , Lei Cao , Feng Gu , Lanlan Fan , Shixian Xiong

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Abstract

The rapid advancement of human-machine interaction (HMI), the Internet of Things (IoTs), and artificial intelligence (AI) has imposed greater demands on the ambient temperature wearable performance of sensors. In this study, the Fe³⁺ modified bilayers polyaniline (PANI) flexible room temperature ammonia sensor is prepared by all-aerosol-jet-printed. The increased protonation degree of the PANI film produced by this method was elucidated through analysis of aerosol microdroplet evaporation behavior, while the improved ammonia sensing performance of the PANI/Fe³⁺ dendritic structure was explained using soft and hard acid-base theory. Gas sensing tests demonstrated that the PANI/Fe³⁺ sensor exhibited high sensitivity to ammonia (776 % at 55 ppm), a wide detection range (547 ppb-547 ppm), as well as excellent selectivity, flexibility, and cyclic stability. These results underscore its potential for application in ambient temperature wearable fields.

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人机交互（HMI）、物联网（IoTs）和人工智能（AI）的快速发展对传感器的环境温度可穿戴性能提出了更高的要求。本研究采用全气溶胶喷印技术制备了Fe3+修饰双层聚苯胺（PANI）柔性室温氨气传感器。通过分析气溶胶微滴蒸发行为，阐明了该方法制备的 PANI 膜质子化程度的提高，并利用软硬酸碱理论解释了 PANI/Fe3+ 树枝状结构对氨气传感性能的改善。气体传感测试表明，PANI/Fe3+ 传感器对氨气具有高灵敏度（55 ppm 时为 776%）、宽检测范围（547 ppb-547 ppm），以及出色的选择性、灵活性和循环稳定性。这些结果凸显了其在环境温度可穿戴领域的应用潜力。

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来源期刊

Talanta 化学-分析化学

CiteScore

12.30

自引率

4.90%

发文量

861

审稿时长

29 days

期刊介绍： Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Papers are evaluated based on established guidelines, including the fundamental nature of the study, scientific novelty, substantial improvement or advantage over existing technology or methods, and demonstrated analytical applicability. Original research papers on fundamental studies, and on novel sensor and instrumentation developments, are encouraged. Novel or improved applications in areas such as clinical and biological chemistry, environmental analysis, geochemistry, materials science and engineering, and analytical platforms for omics development are welcome. Analytical performance of methods should be determined, including interference and matrix effects, and methods should be validated by comparison with a standard method, or analysis of a certified reference material. Simple spiking recoveries may not be sufficient. The developed method should especially comprise information on selectivity, sensitivity, detection limits, accuracy, and reliability. However, applying official validation or robustness studies to a routine method or technique does not necessarily constitute novelty. Proper statistical treatment of the data should be provided. Relevant literature should be cited, including related publications by the authors, and authors should discuss how their proposed methodology compares with previously reported methods.