Heterogeneous interfaces constructing endogenous triboelectric effect to enhance output performance of intelligent sensor

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-07-29 DOI:10.1016/j.cej.2025.166523

Shengping Li, Xinyu Zhang, Xiyi Li, Yugen Wang, Bilin Zhang, Liangkang Huang, Qiangli Zhao, Jianwei Li

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引用次数: 0

Abstract

Piezoelectric sensors have attracted considerable attention due to their great potential in the smart wearable fields. However, their limited piezoelectric performance remains a critical bottleneck hindering their practical application. In this study, the heterogeneous cellular wall is constructed via a gradient fluorinated polyimide (FPI) impregnation strategy based on three-dimensional porous melamine foam (MF). The composite heterogeneous interfaces integrate the triboelectric effect within the porous skeleton, resulting in a synergistic piezoelectric-triboelectric effect and promote the mechanical-electrical conversion ability of the sensor. This coupling effect significantly improves electrical output performance up to 52 V with excellent gas permeability and fast recovery speed (22 ms). Moreover, the composite demonstrates superior sensitivity (1.34 V·kPa⁻¹) and exceptional durability (>10,000 cycles) as a pressure sensor, suitable for detecting diverse human activities. In addition, a self-powered smart warning sleeve with signal transmission capabilities was developed by integrating portable MF/FPI sensors with electronic components. This work proposes an innovative strategy for designing advanced and resilient self-powered microelectric devices.

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异质界面构建内源性摩擦电效应，提高智能传感器输出性能

压电传感器因其在智能可穿戴领域的巨大潜力而备受关注。然而，它们有限的压电性能仍然是阻碍其实际应用的关键瓶颈。在本研究中，采用基于三维多孔三聚氰胺泡沫（MF）的梯度氟化聚酰亚胺（FPI）浸渍策略构建了非均质细胞壁。复合非均质界面将摩擦电效应整合到多孔骨架内部，形成压电-摩擦电协同效应，提高了传感器的机电转换能力。这种耦合效应显著提高了高达52 V的电输出性能，具有优异的透气性和快速的恢复速度（22 ms）。此外，该复合材料作为压力传感器具有卓越的灵敏度（1.34 V·kPa−1）和卓越的耐久性（>10,000 循环），适用于检测各种人类活动。此外，通过将便携式MF/FPI传感器与电子元件集成，开发了具有信号传输能力的自供电智能预警套。这项工作提出了一种设计先进和弹性自供电微电子器件的创新策略。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.