Enhanced energy harvesting performance in lead-free multi-layer piezoelectric composites with a highly aligned pore structure

Yan, Mingyang; Liu, Shengwen; Xu, Qianqian; Xiao, Zhida; Yuan, Xiaoyan; Zhou, Kechao; Zhang, Dou; Wang, Qingping; Bowen, Chris; Zhong, Junwen; Zhang, Yan

doi:10.1016/j.nanoen.2022.108096

Cited by 12 publications

(2 citation statements)

References 56 publications

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“…Lead-free ceramics are emerging as substitutes for lead ceramics. − Because lead-free ceramics compete with lead-containing ceramics in terms of dielectric and piezoelectric qualities, researchers have concentrated on them. For energy harvesting applications, a number of lead-free piezoelectric materials, such as (Ba, Ca)(Ti, Zr)O 3 (BCZT), (K, Na)NbO 3 (KNN), Na 1/2 Bi 1/2 TiO 3 (NBT), and BiFeO 3 , have been investigated as possible substitutes. Lead-free piezoelectric materials include ceramics codoped with calcium and zinc (Ca, Zr) in barium titanate (BT).…”

Section: Introductionmentioning

confidence: 99%

Sustainable and Flexible Piezoelectric Nanogenerator with Hybrid Nanocomposites Based on High-Performance Synthesized BCZT Powder

Missaoui,

Bouhamed,

Nouri

et al. 2024

ACS Appl. Electron. Mater.

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Hybrid piezoelectric nanocomposites (HPCs) for nanogenerators are strongly dependent on the properties of the materials used. Traditional methods, such as solid-state approaches, yield low piezoelectric properties, leading to nanogenerators (PENGs) with reduced capabilities. In this work, the piezoelectric material composition Ba 0.85 Ca 0.15 Zr 0.10 Ti 0.90 O 3 (BCZT), prepared by an efficient sol−gel method, is proposed, and an HPC-based poly(dimethylsiloxane) (PDMS) polymer, including multi-walled carbon nanotube (MWCNT) fillers, is prepared from it. The impact of each filler concentration on the overall performance has been investigated. Both the synthesized particles and the resulting nanocomposites were thoroughly characterized. The structural characterizations by X-ray diffraction and Raman spectroscopy measurements confirm the high crystallinity and purity of the BCZT powder and the formation of a morphotropic phase at room temperature. PENGs with 15 wt % BCZT exhibit under harmonic excitations an open-circuit voltage of 4.5 V and an output power of 2.38 μW for a 330 kΩ load resistance. Incorporating MWCNTs into the HPC enhances the conductivity and promotes selfpolarization. The nanogenerator with the same BCZT concentration doped with MWCNTs generates under harmonic excitations an open-circuit voltage of 8 V and an output power of 5.46 μW for a resistive load of 280 kΩ. Because of the large surface area of the MWCNTs, they tend to agglomerate by van der Waals forces, and this influences the homogeneity of the composites. To optimize the processing parameters, we investigated the influence of the sonication amplitude. The results show that increasing the sonication amplitude improves the homogeneity of the HPC, leading to high flexibility, mechanical resistance, stability, and sustainability over 2000 cycles of repetitive loading and high reliability after 1 year.

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Section: Introductionmentioning

confidence: 99%

Sustainable and Flexible Piezoelectric Nanogenerator with Hybrid Nanocomposites Based on High-Performance Synthesized BCZT Powder

Missaoui,

Bouhamed,

Nouri

et al. 2024

ACS Appl. Electron. Mater.

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“…For example, piezoelectric materials collect the vibration energy transmitted to the ground when a person walks, the energy generated by friction between a person and a backpack, the vibration energy generated by wind, the longitudinal transverse waves of the sea, and the vibration energy generated by high-rise buildings [ 34 , 35 , 36 , 37 ]. To improve the performance of piezoelectric materials, new composite materials, and new structure designs have been put forth by several academics [ 38 , 39 , 40 , 41 ]. Furthermore, piezoelectric materials are widely used in the aerospace and automotive industries [ 42 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Intelligent Device for Harvesting the Vibration Energy of the Automobile Exhaust with a Piezoelectric Generator

Huang

et al. 2023

Micromachines

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With increasing consumption of energy and increasing environmental pollution, research on capturing the vibration energy lost during transportation and vehicle driving is growing rapidly. There is a large amount of vibration energy in the automobile exhaust system that can be recycled. This paper proposes a self-powered intelligent device (SPID) using a piezoelectric energy generator. The SPID includes a piezoelectric generator and sensor unit, and the generator is installed at the end of the automobile exhaust system. The generator adopts a parallel structure of four piezoelectric power generation units, and the sensing unit comprises light-emitting diode warning lights or low-power sensors. A simulated excitation experiment verifies the working state and peak power of the piezoelectric generator unit, which can achieve 23.4 μW peak power. The self-power supply and signal monitoring functions of the intelligent device are verified in experiments conducted for driving light-emitting diode lights and low-power sensors. The device is expected to play a crucial role in the field of intelligent driving and automobile intelligence.

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The output performance evaluations of multilayered piezoelectric nanogenerators based on the PVDF-HFP/PMN-35PT using various layer-by-layer assembly techniques

Paralı

2024

J Mater Sci: Mater Electron

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Multilayered Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and lead magnesium niobate lead titanate Pb (Mg1/3Nb2/3) O3–PbTiO3 (PMN-35PT) composition-based piezoelectric nanogenerators (PNGs) were fabricated as series, parallel, and combined series-parallel connections using various layer-by-layer assembly techniques. Supporting the theoretical approaches with experimental results shows that the fabricated four-layered PNG with parallel connections (4L-P) reached an open-circuit voltage of 0.4 V (VRMS) and a maximum electrical power of 0.3 µW (PRMS) by drawing a current (IRMS) of 1.46 µA under a resistive load of 140.2 KΩ. Increasing the capacitance and decreasing the impedance with the fabrication of the four-layer PNG by connecting the layers in parallel connection with the support of the impedance matching process led to an increase in electrical output. With the use of an impedance matching system, the piezoelectric performance tests revealed that the 4L-P-based PNG had a 6.7 times greater electrical power efficiency (72.92 µW) at the vibrational frequency of 20 Hz compared to that of the single-layered PNG (10.82 µW). Furthermore, the multilayer PNG was successfully used as a wearable sensor for the monitoring of human body motions in real time on an IOT (Internet of Things) platform.

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Enhanced energy harvesting performance in lead-free multi-layer piezoelectric composites with a highly aligned pore structure

Cited by 12 publications

References 56 publications

Sustainable and Flexible Piezoelectric Nanogenerator with Hybrid Nanocomposites Based on High-Performance Synthesized BCZT Powder

Sustainable and Flexible Piezoelectric Nanogenerator with Hybrid Nanocomposites Based on High-Performance Synthesized BCZT Powder

Intelligent Device for Harvesting the Vibration Energy of the Automobile Exhaust with a Piezoelectric Generator

The output performance evaluations of multilayered piezoelectric nanogenerators based on the PVDF-HFP/PMN-35PT using various layer-by-layer assembly techniques

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