Metal–Organic Framework Based Triboelectric Nanogenerator for a Self-Powered Methanol Sensor with High Sensitivity and Selectivity

Ma, Haiyan; Luo, Chen; Zhao, Jingbo; Shao, Yan; Zhang, Yuhao; Liu, Xu; Li, Shuang; Yin, Bo; Zhang, Kai; Ke, Kai; Zhou, Ling; Yang, Ming‐Bo

doi:10.1021/acsami.3c07966

Cited by 20 publications

References 61 publications

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Advancing Charge Density in Temperature‐Dependent Amphiphile Metal–Organic Polyhedra‐Based Triboelectric Nanogenerators

Ippili,

Kumar,

Sharma

et al. 2024

Advanced Energy Materials

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In this study, a mechanically flexible structure, a cuboctahedral metal‐organic polyhedra (MOP) Cu24[5‐(octyloxy) isophthalic acid]24 Cu (II) paddlewheel clusters coordinated with (5‐(octyloxy) isophthalate), resulting in significantly enhanced hydrolytic stability are prepared. It should be noted that CuMOP‐1 exhibits evenly and symmetrically distributed non‐polar long alkyl chains and polar hydroxy groups, facilitating self‐assembly into higher‐order structures reminiscent of amphiphiles. Furthermore, the resultant CuMOP‐1 undergoes a phase change at 150–160 °C as confirmed temperature‐dependent Raman spectroscopy (RS), thermogravimetric analysis and Differential Scanning Calorimetry (TGA‐DSC). The possible use of Cu‐MOP‐1 for capturing mechanical energy is demonstrated by creating a flexible hybrid piezoelectric‐triboelectric nanogenerator (HP‐TENG). The resultant CuMOP‐1@ Polyvinylidene fluoride(PVDF) membrane‐based HP‐TENG demonstrates enhanced triboelectric output voltage of 547.5 V, current density of 15.16 µAcm−2, and power density of 2.8 mWcm−2 due to its increased surface charge density and a substantial rise in the dielectric constant. Furthermore, the amphiphiles and phase change in CuMOP‐1 lead to ∽73% increase in voltage and 60% in current density of HP‐TENG in high‐temperature (140 °C) environments. HP‐TENG also exhibits exceptional temperature‐ and pressure‐sensing abilities, with sensitivities of 1.81 V°C−1 and 7.12 V°kPa−1, respectively, showcasing its feasibility over a wide range of temperatures and pressures.

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Advancing Charge Density in Temperature‐Dependent Amphiphile Metal–Organic Polyhedra‐Based Triboelectric Nanogenerators

Ippili,

Kumar,

Sharma

et al. 2024

Advanced Energy Materials

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Pulsed Airstream‐Driven Hierarchical Micro‐Nano Pore Structured Triboelectric Nanogenerator for Wireless Self‐Powered Formaldehyde Sensing

Wang,

Ren,

Zheng

et al. 2024

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Formaldehyde (HCHO), as a common volatile organic compound, has a serious impact on human health in the daily lives and industrial production scenarios. Given the security issue of HCHO detection and danger warning, a ZIF‐8/copper foam based pulsed airstream‐driven triboelectric nanogenerator (ZCP‐TENG) is designed to develop the self‐powered HCHO sensors. By combining contact electrification and electrostatic induction, the ZCP‐TENG can be utilized for airflow energy harvesting and HCHO concentration detection. The short‐circuit current and output power of the ZCP‐TENG can reach 2.0 µA and 81 µW (20 ppm). With the high surface area, abundant micro‐nano pores, and excellent permeation flux, the ZCP‐TENGs exhibit excellent HCHO sensing response (61.3% at 100 ppm), low detection limit (≈2 ppm), and rapid response/recovery time (14/15 s), which can be served as a highly sensitive and selective HCHO sensor. By connecting an intelligent wireless alarm, the ZCP‐TENGs are designed to construct a self‐powered warning system to monitor and remind the HCHO of exceedance situations. Moreover, by combining a support vector machine model, the difference concentrations can be quickly identified with an average prediction accuracy of 100%. This study illustrates that ZCP‐TENGs have broad application prospects and provide guidance for HCHO monitoring and danger warnings.

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Triboelectric Nanogenerator for Self‐Powered Gas Sensing

Zhang,

Zhou,

et al. 2024

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With the continuous acceleration of industrialization, gas sensors are evolving to become portable, wearable and environmentally friendly. However, traditional gas sensors rely on external power supply, which severely limits their applications in various industries. As an innovative and environmentally adaptable power generation technology, triboelectric nanogenerators (TENGs) can be integrated with gas sensors to leverage the benefits of both technologies for efficient and environmentally friendly self‐powered gas sensing. This paper delves into the basic principles and current research frontiers of the TENG‐based self‐powered gas sensor, focusing particularly on innovative applications in environmental safety monitoring, healthcare, as well as emerging fields such as food safety assurance and smart agriculture. It emphasizes the significant advantages of TENG‐based self‐powered gas sensor systems in promoting environmental sustainability, achieving efficient sensing at room temperature, and driving technological innovations in wearable devices. It also objectively analyzes the technical challenges, including issues related to performance enhancement, theoretical refinement, and application expansion, and provides targeted strategies and future research directions aimed at paving the way for continuous progress and widespread applications in the field of self‐powered gas sensors.

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Metal–Organic Framework Based Triboelectric Nanogenerator for a Self-Powered Methanol Sensor with High Sensitivity and Selectivity

Cited by 20 publications

References 61 publications

Advancing Charge Density in Temperature‐Dependent Amphiphile Metal–Organic Polyhedra‐Based Triboelectric Nanogenerators

Advancing Charge Density in Temperature‐Dependent Amphiphile Metal–Organic Polyhedra‐Based Triboelectric Nanogenerators

Pulsed Airstream‐Driven Hierarchical Micro‐Nano Pore Structured Triboelectric Nanogenerator for Wireless Self‐Powered Formaldehyde Sensing

Triboelectric Nanogenerator for Self‐Powered Gas Sensing

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