Abstract
An ionic polymer–metal composite (IPMC) is a kind of soft material. The applications of IPMC in actuators, environmental sensing, and energy harvesting are currently increasing rapidly. In this study, an ordered Nafion nanofibre mat prepared by electrospinning was used to investigate the characteristics of the mechanoelectrical transduction of IPMC. The morphologies of the Nafion nanofibre mat were characterized. The proton conductivity, ion exchange capacities, and water uptake potential of the Nafion nanofibre mat were compared to traditional IPMC, respectively. A novel mechanism of Nafion nanofibre IPMC was designed and the open circuit voltage and short circuit current were measured. The maximum voltage value reached 100 mv. The output power was 3.63 nw and the power density was up to 42.4 μW/Kg under the load resistance. The Nafion nanofibre mat demonstrates excellent mechanoelectrcical transduction behavior compared to traditional IPMC and could be used for the development of self-powered devices in the future.
Highlights
Ionic polymer–metal composites (IPMCs) are a new kind of smart material
IPMC was investigate the characteristics of mechanoelectrical transduction
Two samples of Nafion nanofibre IPMC were fabricated by using electrical output of the open circuit voltage and short circuit current was compared
Summary
Ionic polymer–metal composites (IPMCs) are a new kind of smart material. They consist of one proton exchange mat layer and two metal electrodes on both sides. When a DC voltage difference is applied on both ends of the electrodes, IPMC generates mechanical bending in the direction of the anode [1]. If a mechanical deformation occurs in IPMC, a voltage is generated on both sides of the electrodes. IPMC is a promising class of soft electroactive polymers that can be utilized as actuators [2,3], sensors [4,5], or energy harvesters [6,7] due to its mechanoelectrical transduction
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