Acid- and Alkali-Resistant and High-Performance Cellulose Paper-Based Triboelectric Nanogenerator by Controlling the Surface Hydrophobicity

Lin, Changmei; Huang, Haitao; Zhao, Honghui; Cao, Shilin; Ma, Xiaojuan

doi:10.1021/acssuschemeng.2c03557

Cited by 9 publications

(1 citation statement)

References 75 publications

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“…To push the TENGs into practical applications, many research advances have been made to improve the output performance of the devices, including surface modification [ 28 , 29 ], structure optimization [ 30 , 31 ], ion injection [ 32 , 33 ], and intermediate layer implantation [ 34 , 35 ], expanding the fields of application to self-powered sensing, smart wearables, and implantable electronics [ 36 , 37 , 38 ]. Despite these advances, most devices need micro/nanostructures and/or complex and expensive instrumentation, making inexpensive and large-scale mass production difficult, which has ultimately limited their practical applications.…”

Section: Introductionmentioning

confidence: 99%

Toward Large-Scale Energy Harvesting by a UV-Curable Organic-Coating-Based Triboelectric Nanogenerator

Chen¹,

Tang

Cheng

et al. 2023

Sensors

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Triboelectric nanogenerators (TENGs) stand out as an attractive form of technology for the efficient harvest of mechanical energy and the powering of wearable devices due to their light weight, simplicity, high power density, and efficient vibration energy scavenging capabilities. However, the requirement for micro/nanostructures and/or complex and expensive instruments hinders their cheap mass production, thus limiting their practical applications. By using a simple, cost-effective, fast spray-coating process, we develop high-performance UV-curable triboelectric coatings for large-scale energy harvesting. The effect of different formulations and coating compositions on the triboelectric output is investigated to design triboelectric coatings with high output performance. The TENG based on a hybrid coating exhibits high output performance of 54.5 μA current, 1228.9 V voltage, 163.6 nC transferred charge and 3.51 mW output power. Moreover, the hybrid coatings show good long-term output stability. All the results indicate that the designed triboelectric coatings show great potential for large-scale energy harvesting with the advantages of cost-effectiveness, fast fabrication, easy mass production and long-term stability.

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Section: Introductionmentioning

confidence: 99%

Toward Large-Scale Energy Harvesting by a UV-Curable Organic-Coating-Based Triboelectric Nanogenerator

Chen¹,

Tang

Cheng

et al. 2023

Sensors

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Study on water absorption of hydrophobically modified ramie fiber and the reinforced polypropylene composites

Kang

Han

Wang

et al. 2023

J of Applied Polymer Sci

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To study the effects of fiber surface hydrophobicity on water absorption of composites, ramie fiber was hydrophobically modified with polydopamine/ octadecylamine and then used to reinforce polypropylene. The fiber modification was characterized by infrared spectroscopy, scanning electron microscopy, energy spectrometry, contact angle, and water absorption. The mechanical properties and water absorption of the composites were also characterized.The results indicated that polydopamine/octadecylamine was successfully grafted onto the fiber surface. With the increase of octadecylamine concentration, the fiber surface became more and more hydrophobic, and its contact angle achieved a maximum of 118 ± 2.97 when octadecylamine concentration was 8 g/L. However, the modified fiber remained a high level of saturated water absorption of 6.53% ± 0.09%. For composites, when the octadecylamine concentration was 0.5 g/L, its water absorption showed the lowest value of 1.81% ± 0.09%. With more octadecylamine was grafted onto the fiber, the water absorption did not decrease continuously but showed a small growth peak. It is concluded that water absorption of composites is greatly affected by water absorption of fiber. The surface hydrophobic modification on fiber is beneficial to improve its surface hydrophobicity and inhibit the interfacial water absorption between fiber and matrix. However, it fails to the improve internal hydrophobicity of the fiber, nor does it inhibit the fiber in composites from absorbing water.

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Rational Design of Cellulosic Triboelectric Materials for Self-Powered Wearable Electronics

et al. 2023

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With the rapid development of the Internet of Things and flexible electronic technologies, there is a growing demand for wireless, sustainable, multifunctional, and independently operating self-powered wearable devices. Nevertheless, structural flexibility, long operating time, and wearing comfort have become key requirements for the widespread adoption of wearable electronics. Triboelectric nanogenerators as a distributed energy harvesting technology have great potential for application development in wearable sensing. Compared with rigid electronics, cellulosic self-powered wearable electronics have significant advantages in terms of flexibility, breathability, and functionality. In this paper, the research progress of advanced cellulosic triboelectric materials for self-powered wearable electronics is reviewed. The interfacial characteristics of cellulose are introduced from the top-down, bottom-up, and interfacial characteristics of the composite material preparation process. Meanwhile, the modulation strategies of triboelectric properties of cellulosic triboelectric materials are presented. Furthermore, the design strategies of triboelectric materials such as surface functionalization, interfacial structure design, and vacuum-assisted self-assembly are systematically discussed. In particular, cellulosic self-powered wearable electronics in the fields of human energy harvesting, tactile sensing, health monitoring, human–machine interaction, and intelligent fire warning are outlined in detail. Finally, the current challenges and future development directions of cellulosic triboelectric materials for self-powered wearable electronics are discussed.

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Acid- and Alkali-Resistant and High-Performance Cellulose Paper-Based Triboelectric Nanogenerator by Controlling the Surface Hydrophobicity

Cited by 9 publications

References 75 publications

Toward Large-Scale Energy Harvesting by a UV-Curable Organic-Coating-Based Triboelectric Nanogenerator

Toward Large-Scale Energy Harvesting by a UV-Curable Organic-Coating-Based Triboelectric Nanogenerator

Study on water absorption of hydrophobically modified ramie fiber and the reinforced polypropylene composites

Rational Design of Cellulosic Triboelectric Materials for Self-Powered Wearable Electronics

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