Water-solid triboelectrification with self-repairable surfaces for water-flow energy harvesting

Liu, Yupeng; Zheng, Youbin; Li, Tinghua; Wang, Daoai; Zhou, Feng

doi:10.1016/j.nanoen.2019.05.007

Cited by 107 publications

(55 citation statements)

References 39 publications

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“…Besides the applications mentioned above, self‐healing superhydrophobic surfaces also show great potential in various fields such as water‐energy harvesting, [ 54 ] solar steam generation, [ 55 ] (anti‐)condensation, [ 56 ] superior microwave absorption, [ 57 ] and so on. [ 24e,58 ]…”

Section: Applications Of Self‐healing Superhydrophobic Surfacesmentioning

confidence: 99%

Self‐Healing Superhydrophobic Surfaces: Healing Principles and Applications

Xiang

Liu

2021

Adv Materials Inter

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Superhydrophobic surfaces have already been applied in anti‐fouling, water‐oil separation, liquid transportation, etc. Surfaces can be defined as superhydrophobic surfaces once they can support a water droplet with its spherical shape maintained and accompanied by an apparent contact angle larger than 150° and a rolling‐off angle below 10°. Such water repellent property is achieved by the synergetic action of hierarchical structures and the low‐surface energy of the substances constructing the surface. Structures with high aspect ratio always perform good superhydrophobicity. However, they are usually with poor mechanical stability. Since durability is one of the essential factors for practical use, exploiting robust superhydrophobic surfaces has attracted tremendous interest. During the past decade, great effort has been made in developing self‐healing superhydrophobic surfaces to improve the potential practice and broaden the application fields. An overview of the recent development of self‐healing superhydrophobic surfaces is provided in this review. The focus here is particularly on the fabrication process based on specific healing mechanisms and possible applications. Finally, an outlook on future fabrication techniques for durable superhydrophobic surfaces is presented.

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Section: Applications Of Self‐healing Superhydrophobic Surfacesmentioning

confidence: 99%

Self‐Healing Superhydrophobic Surfaces: Healing Principles and Applications

Xiang

Liu

2021

Adv Materials Inter

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“…Recently, liquid–solid triboelectrification has attracted increasing interesting, as new electric energy sources, which combined with electrostatic induction can be exploited to harvest energy from water in the form of river/ocean wave and rain drops, [ 1 ] is everywhere. Given the outstanding progress recently, blue energy aims to be developed to relieve the energy crisis.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, self‐powered sensor based on tunable liquid–solid triboelectricity can be designed to detect organics or heavy metals ions in water, as well as surface/interface behavior such as wettability changes of solid friction layer, or emergency alarm and others. [ 1b,4 ] Therefore, realizing the regulation of liquid–solid triboelectrification is crucial but also challenging.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is more feasible to adjust the liquid–solid triboelectricity by regulating the solid friction layer properties. To date, many efforts, which mainly focused on developing different nano/micro patterning, [ 1f,7 ] introducing functional molecule, [ 4c,5d,8 ] designing novel back electrodes structures, [ 9 ] and pre‐injected artificial charges [ 2,8c,9b ] have been exerted. However, the aforementioned controls to increase the amount of charge for energy collection or nullify the charges for developing efficient antistatic materials, they are mostly unidirectional and irreversible and accompanied by problems, such as low sample utilization efficiency and narrow range of applications.…”

Section: Introductionmentioning

confidence: 99%

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Reversible Temperature‐Sensitive Liquid–Solid Triboelectrification with Polycaprolactone Material for Wetting Monitoring and Temperature Sensing

Zhang

Feng

et al. 2021

Adv Funct Materials

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Controlling liquid–solid triboelectrification is highly demanded in a wide range of applications, from electrostatic prevention to energy collection and utilization. Except for traditional unidirectional and irreversible ways, smart approaches are required urgently. Here, a novel temperature response liquid–solid triboelectric nanogenerator (TENG) is reported on the basis of a polycaprolactone (PCL) covered fluorinated alumina for tunable triboelectrification. The PCL conformation is regulated by temperature to endow the substrate controllable surface component and interfacial wettability to manipulate the liquid–solid triboelectricity flexibly. As the temperature rises from 20 to 40 °C, the short circuit current and the open‐circuit voltage of the PCL‐based TENG are reduced by more than 40 times. When the temperature drops to 20 °C, the electrical output can return to its original level again. Moreover, after one month, the electrical signal is still reversible and stable. In addition to water, the electrical output of organic liquid, such as ethylene glycol, also responds well to temperature. This work initially provides a new strategy for achieving the customizable manipulation of liquid–solid triboelectrification by polymer surface reorganization, gives a new idea for in situ monitoring the interfacial wettability changes, and configures the reconstruction of amphiphilic polymer using triboelectricity.

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“…In the past few decades, the superhydrophobic and oleophobic surfaces have attracted sustained attention due to its self-cleaning properties (Liu et al, 2016;Qu et al, 2016;Wen and Guo, 2016;Wang et al, 2017;Li and Guo, 2019;Liu et al, 2019;Shen et al, 2019;Xing et al, 2019;Guo et al, 2020;Naderizadeh et al, 2020). The composite surfaces based on a combination of micro-nano structures and low surface energies were important to obtain superhydrophobic property (Liu et al, 2015;Ciriminna et al, 2016;.…”

Section: Introductionmentioning

confidence: 99%

An Anodized Titanium/Sol-Gel Composite Coating with Self-Healable Superhydrophobic and Oleophobic Property

Dong

Liu

et al. 2021

Front. Mater.

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Superhydrophobic and oleophobic surfaces have attracted increasing attention because of their self-cleaning properties. A composite coating composed of anodized titanium and sol-gel (TiAO/SG) was developed and has good superhydrophobic and oleophobic property. The anodized titanium coating was prepared on the titanium substrate and then a sol-gel layer was coated on the surface of the anodized titanium layer to obtain a composite coating with superhydrophobic and oleophobic properties. The adhesion weight of glycerol on the surface of the superhydrophobic titanium wire decreased to 4.8% of that of untreated titanium wire, which showed that the material had good oleophobic property. This new composite coating could achieve self-healing superhydrophobicity by releasing loaded perfluorodenytriethoxysilane to the surface of the coating. Given its superhydrophobicity, self-healing and wear resistance, the TiAO/SG coating was expected to achieve healable self-cleaning protection in titanium devices.

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Water-solid triboelectrification with self-repairable surfaces for water-flow energy harvesting

Cited by 107 publications

References 39 publications

Self‐Healing Superhydrophobic Surfaces: Healing Principles and Applications

Self‐Healing Superhydrophobic Surfaces: Healing Principles and Applications

Reversible Temperature‐Sensitive Liquid–Solid Triboelectrification with Polycaprolactone Material for Wetting Monitoring and Temperature Sensing

An Anodized Titanium/Sol-Gel Composite Coating with Self-Healable Superhydrophobic and Oleophobic Property

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