Recent progress on piezoelectric materials for renewable energy conversion

Yan, Xiaohui; Li, Gang; Wang, Zheyan; Yu, Zhichao; Wang, Kaiying; Wu, Yucheng

doi:10.1016/j.nanoen.2020.105180

Cited by 79 publications

(35 citation statements)

References 108 publications

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“…Piezocatalytic ROS generation efficiency is by nature dependent on piezoelectric coefficient, d 33 , and generally the piezocatalytic activity increases with increasing d 33 . Classical piezoelectric materials that have been demonstrated as piezocatalysts include inorganic BaTiO 3 , ZnO, and BiFeO 3 as well as organic polyvinylidene fluoride (PVDF) 15 – 21 . However, the piezoelectric coefficient ( d 33 ≈ 3–105 pC/N) is too low to be effective for piezocatalysis applications.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic activation of inert poly(tetrafluoroethylene) enables piezocatalytic generation of reactive oxygen species

et al. 2021

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Controlled generation of reactive oxygen species (ROS) is essential in biological, chemical, and environmental fields, and piezoelectric catalysis is an emerging method to generate ROS, especially in sonodynamic therapy due to its high tissue penetrability, directed orientation, and ability to trigger in situ ROS generation. However, due to the low piezoelectric coefficient, and environmental safety and chemical stability concerns of current piezoelectric ROS catalysts, novel piezoelectric materials are urgently needed. Here, we demonstrate a method to induce polarization of inert poly(tetrafluoroethylene) (PTFE) particles (<d > ~ 1–5 μm) into piezoelectric electrets with a mild and convenient ultrasound process. Continued ultrasonic irradiation of the PTFE electrets generates ROS including hydroxyl radicals (•OH), superoxide (•O2−) and singlet oxygen (1O2) at rates significantly faster than previously reported piezoelectric catalysts. In summary, ultrasonic activation of inert PTFE particles is a simple method to induce permanent PTFE polarization and to piezocatalytically generate aqueous ROS that is desirable in a wide-range of applications from environmental pollution control to biomedical therapy.

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Section: Introductionmentioning

confidence: 99%

Ultrasonic activation of inert poly(tetrafluoroethylene) enables piezocatalytic generation of reactive oxygen species

et al. 2021

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“…After fixing the first parameter ( ) and the third parameter ( ), the charge values of the deformation depth of each piezoelectric ceramic ( ) were compared. Figures 13,14,15,16, and 17 are all graphs comparing , and each figure number is divided into for easy comparison on the y-axis. The x-axis deformation depth ( ) of each graph, and the y-axis is the charging power (P).…”

Section: Depth To Which the Piezoelectric Ceramic Is Compressed (Dx)mentioning

confidence: 99%

“…As piezoelectric energy is aimed at charging low-power storage devices such as batteries and capacitors, it assists in harvesting useful energy, reducing the production and maintenance costs of energy with low production efficiency, and reducing the chemical waste energy from battery replacement. Therefore, piezoelectric energy is applied in several industries such as manufacturing and automobiles [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Power-Generation Optimization Based on Piezoelectric Ceramic Deformation for Energy Harvesting Application with Renewable Energy

Han

2021

Energies

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Along with the increase in renewable energy, research on energy harvesting combined with piezoelectric energy is being conducted. However, it is difficult to predict the power generation of combined harvesting because there is no data on the power generation by a single piezoelectric material. Before predicting the corresponding power generation and efficiency, it is necessary to quantify the power generation by a single piezoelectric material alone. In this study, the generated power is measured based on three parameters (size of the piezoelectric ceramic, depth of compression, and speed of compression) that contribute to the deformation of a single PZT (Lead zirconate titanate)-based piezoelectric element. The generated power was analyzed by comparing with the corresponding parameters. The analysis results are as follows: (i) considering the difference between the size of the piezoelectric ceramic and the generated power, 20 mm was the most efficient piezoelectric ceramic size, (ii) considering the case of piezoelectric ceramics sized 14 mm, the generated power continued to increase with the increase in the compression depth of the piezoelectric ceramic, and (iii) For piezoelectric ceramics of all diameters, the longer the depth of deformation, the shorter the frequency, and depending on the depth of deformation, there is a specific frequency at which the charging power is maximum. Based on the findings of this study, PZT-based elements can be applied to cases that receive indirect force, including vibration energy and wave energy. In addition, the power generation of a PZT-based element can be predicted, and efficient conditions can be set for maximum power generation.

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“…Coordinate system by a rectangular crack in OPMs semi-permeable crack model [16][17][18] is employed, the boundary conditions are expressed as 1) ( , , 0) = (2) ( , , 0) = − 0 (1) ( , , 0) = (2) ( , , 0) = 0 (1) ( , , 0) = (2) ( , , 0) = 0 ( , , 0)[ (1) ( , , 0) − (2) ( , , 0)] = 0 [ (1) ( , , 0) − (2) ( , , 0)]…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…Owing to unique intelligence features, piezoelectric materials have been attracted great attention [1][2][3], which have ability to sense either electric or mechanical change across them. Composite materials have the characteristics of high strength and light weight [4], and are essentially an orthotropic materials, which have been widely concerned by many researchers [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Non‐local stress and electric displacement solution of a 3D semi‐permeable rectangular crack in infinite orthotropic piezoelectric materials

2021

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The paper presents the non-local stress and electric displacement solution of a 3D semi-permeable rectangular crack in infinite orthotropic piezoelectric materials (OPMs). With the help of the generalized Almansi's theorem and 2D Fourier transform, the boundary problem is formulated by three pairs of dual integral equations, and the displacement jumps across the crack surfaces are defined. The Schmidt method is used to solve the dual integral equations. The non-local stress field (NSF) and the non-local electric displacement field (NEDF) along the crack edges are deduced. Numerical results are reported to explain the influence of the size of the rectangular crack, the lattice parameter and the electric permittivity of the air inside the crack on the NSF and the NEDF at the crack edges in OPMs in detail. The present non-local solutions exhibit no stress and electric displacement singularities along the crack edges, and may be benefit future works.

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Recent progress on piezoelectric materials for renewable energy conversion

Cited by 79 publications

References 108 publications

Ultrasonic activation of inert poly(tetrafluoroethylene) enables piezocatalytic generation of reactive oxygen species

Ultrasonic activation of inert poly(tetrafluoroethylene) enables piezocatalytic generation of reactive oxygen species

Power-Generation Optimization Based on Piezoelectric Ceramic Deformation for Energy Harvesting Application with Renewable Energy

Non‐local stress and electric displacement solution of a 3D semi‐permeable rectangular crack in infinite orthotropic piezoelectric materials

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