Self-powered gas sensor based on triboelectric nanogenerators (TENG): a comparative review of sensing mechanisms

IF 4 Q2 NANOSCIENCE & NANOTECHNOLOGY Micro and Nano Systems Letters Pub Date : 2025-03-01 DOI:10.1186/s40486-025-00222-8

Sungjong Lee, Hee-Jin Ko, Jongbaeg Kim

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Abstract

With the advancements of industrialization and the Internet of Things (IoT), the demand for gas sensing technologies has grown significantly. However, conventional gas sensors, which rely on external power supplies, face limitations in lifespan, capacity, and replacement convenience. As a result, interest in self-powered solutions has grown, with triboelectric nanogenerators (TENGs) emerging as a promising alternative. TENG-based self-powered gas sensors utilize triboelectricity, enabling gas detection without external power. Notably, TENGs offer the unique advantage of integrating energy harvesting and gas detection into a single device. This review categorizes the sensing mechanisms of TENG-based gas sensors into two main types and introduces each mechanism in detail. Through case studies, it provides a comprehensive understanding of these gas sensors. Additionally, it aims to analyze the challenges faced by TENG-based gas sensors and offer new insights into research strategies, ultimately contributing to the advancement of this technology.

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基于摩擦电纳米发电机（TENG）的自供电气体传感器：传感机制的比较综述

随着工业化和物联网（IoT）的发展，对气体传感技术的需求显著增长。然而，传统的气体传感器依赖外部电源，在使用寿命、容量和更换便利性方面存在限制。因此，人们对自供电解决方案的兴趣越来越大，摩擦电纳米发电机（TENGs）成为一种有前途的替代方案。基于teng的自供电气体传感器利用摩擦电，无需外部电源即可进行气体检测。值得注意的是，teng提供了将能量收集和气体检测集成到单个设备中的独特优势。本文将基于teng的气体传感器的传感机制分为两大类，并对每种传感机制进行了详细介绍。通过案例研究，它提供了这些气体传感器的全面了解。此外，它旨在分析基于teng的气体传感器面临的挑战，并为研究策略提供新的见解，最终为该技术的进步做出贡献。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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