Ammonia gas sensing friction nanometer generator and preparation method and application thereof

By loading PSS-doped PANI film on porous metal materials and performing electrochemical polymerization and protonation treatment, an ammonia sensing friction nanogenerator with high sensitivity and stability was prepared, solving the problems of complex, high cost and long response time in the prior art, and achieving rapid and accurate detection of low-concentration ammonia gas.

CN119743039APending Publication Date: 2025-04-01YANTAI UNIV
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Patent Information

Application Number
CN202411923598.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The existing ammonia detection technology has complex equipment, high cost, long response time and strong dependence on environmental conditions, making it difficult to achieve portable, low power consumption and real-time monitoring. In addition, pure polyaniline materials are fragile in practical applications, have low sensitivity and poor stability, and cannot quickly detect low-concentration ammonia.

Method used

A porous metal material is used as the substrate, and a PSS-doped PANI film is loaded to form a composite material through electrochemical polymerization. Combined with protonation treatment, an ammonia-sensing friction nanogenerator with high sensitivity and stability is prepared.

Benefits of technology

It realizes rapid detection of low-concentration ammonia, has excellent sensitivity and stability, and can detect ammonia efficiently and quickly at room temperature, with good output performance, high selectivity, short response/recovery time and low detection limit.

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Abstract

The invention provides an ammonia gas sensing friction nanometer generator and a preparation method and application thereof, and belongs to the technical field of sensors. According to the invention, the porous metal material is used as the substrate, which not only has good mechanical properties, but also contributes to the transmission of high-pressure pulse airflow; pANI is used as an ammonia gas sensing material with excellent performance, so that the composite material is endowed with good ammonia gas detection capability; pSS is used as a gas-sensitive material with excellent performance, so that the gas-sensitive performance of the composite material can be further improved while the roughness of the composite material is increased. Therefore, the ammonia gas sensing friction nanometer generator provided by the invention has excellent sensitivity, selectivity and stability on detection of ammonia gas.
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