The fabrication of a graphene and conductive polymer nanocomposite-coated highly flexible and washable woven thermoelectric nanogenerator

Khoso, Nazakat Ali; GuangYu, Xu; Xie, Jin; Sun, Tao; Wang, Jiajun

doi:10.1039/d0ma01010c

Cited by 20 publications

(18 citation statements)

References 65 publications

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“…TEGs produce electricity by using the Seebeck effect to scavenge thermal energy caused by temperature differences between two thermoelectric (TE) materials ( Figure 2 ). This temperature differential causes charge carriers to migrate from a high-temperature TE material to a low-temperature TE material [ 77 , 78 ]. A TEG’s voltage output is proportional to the temperature gradient.…”

Section: Operation Principlementioning

confidence: 99%

“… Reduced graphene oxide poly(3,4-ethylenedioxythiophene): poly (styrenesulfonate) (rGO-PEDOT:PSS) film-coated fabric of the flexible and washable thermoelectric nanogenerator fabricated by Khoso et al [ 78 ]. This nanogenerator has potential application for harvesting green energy from human body heat.…”

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Recent Progress of Nanogenerators for Green Energy Harvesting: Performance, Applications, and Challenges

et al. 2022

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Natural sources of green energy include sunshine, water, biomass, geothermal heat, and wind. These energies are alternate forms of electrical energy that do not rely on fossil fuels. Green energy is environmentally benign, as it avoids the generation of greenhouse gases and pollutants. Various systems and equipment have been utilized to gather natural energy. However, most technologies need a huge amount of infrastructure and expensive equipment in order to power electronic gadgets, smart sensors, and wearable devices. Nanogenerators have recently emerged as an alternative technique for collecting energy from both natural and artificial sources, with significant benefits such as light weight, low-cost production, simple operation, easy signal processing, and low-cost materials. These nanogenerators might power electronic components and wearable devices used in a variety of applications such as telecommunications, the medical sector, the military and automotive industries, and internet of things (IoT) devices. We describe new research on the performance of nanogenerators employing several green energy acquisition processes such as piezoelectric, electromagnetic, thermoelectric, and triboelectric. Furthermore, the materials, applications, challenges, and future prospects of several nanogenerators are discussed.

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Section: Operation Principlementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Recent Progress of Nanogenerators for Green Energy Harvesting: Performance, Applications, and Challenges

et al. 2022

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“…Some of the most advanced developments use graphene to manufacture sensors and smart textiles, [21][22][23][24][25][26][27] electromagnetic shielding, [28][29][30] and flexible energy production devices. 31,32 Currently, there are several alternatives to incorporate graphene into textile substrates. The most common procedure is dip-coating, where the textile is immersed in a bath containing the conductive particles for a certain amount of time and becomes evenly coated; however, this is not a suitable procedure due to the existence of no affinity between the GNP and the fiber.…”

Section: Introductionmentioning

confidence: 99%

“…Some of the most advanced developments use graphene to manufacture sensors and smart textiles, 21–27 electromagnetic shielding, 28–30 and flexible energy production devices. 31,32…”

Section: Introductionmentioning

confidence: 99%

Thermoelectrical properties of graphene knife-coated cellulosic fabrics for defect monitoring in Joule-heated textiles

Ruiz-Calleja

Calderón-Villajos

Bonet-Aracil

et al. 2022

Journal of Industrial Textiles

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Knife-coating can confer new properties on different textile substrates efficiently by integrating various compounds into the coating paste. Graphene nanoplatelets (GNP) is one of the most used elements for the functionalization of fabrics in recent years, providing electrical and thermal conductivity to fabrics, later used to develop products such as sensors or heated garments. This paper reports thermoelectrically conductive textiles fabrication through knife-coating of cellulosic fabrics with a GNP load from 0.4 to 2 wt% within an acrylic coating paste. The fabric doped with the highest GNP content reaches a temperature increase of 100°C in few seconds. Besides, it is found out that the thermographic images obtained during the electrical voltage application provide maps of irregularities in the dispersion of conductive particles of the coating and defects produced throughout their useful life. Therefore, the application of a low voltage on the coated fabrics allows fast and effective heating by Joule’s effect, whose thermographic images, in turn, can be used as structural maps to check the quality of the GNP doped coating. The temperature values and the heating rate obtained make these fabrics suitable for heating devices, anti-ice and de-ice systems, and protective equipment, which would be of great interest for industrial applications.

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Isophorone‐Based Quaternary Compound Modified Graphene for Machine Washable Nonwoven Piezoresistive Sensors

Ahmed

Mirihanage

Potluri

et al. 2023

Adv Materials Inter

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An isophorone‐based quaternary compound with two positively charged polymer chains has been synthesized to modify charge‐neutral graphene without affecting its unique intrinsic properties. A highly scalable dip and dry coating method is employed to coat the textile‐based substrates without subsequent post‐treatment. The resultant electronic textiles exhibit remarkably low sheet resistance ≈140 Ω sq−1) after 10 washing cycles, which is considerably better compared to any reported graphene‐based e‐textiles without post‐treatment. Graphene‐based nonwoven piezoresistive sensors developed for wearable e‐textiles use this approach to exhibit an impressive piezoresistive sensitivity in the low‐pressure range of 0 to 40 Pa and display good repeatability after washing cycles. Hence this novel modification strategy is envisaged to have strong potential for multifunctional applications in next‐generation graphene‐based wearable e‐textiles.

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The fabrication of a graphene and conductive polymer nanocomposite-coated highly flexible and washable woven thermoelectric nanogenerator

Abstract: The use of self-powering wearable devices has been increased in recent years due to the increasing demand of internet of things IOTs. The textile fabrics showed increasing trends for wearable...

Cited by 20 publications

References 65 publications

Recent Progress of Nanogenerators for Green Energy Harvesting: Performance, Applications, and Challenges

Recent Progress of Nanogenerators for Green Energy Harvesting: Performance, Applications, and Challenges

Thermoelectrical properties of graphene knife-coated cellulosic fabrics for defect monitoring in Joule-heated textiles

Isophorone‐Based Quaternary Compound Modified Graphene for Machine Washable Nonwoven Piezoresistive Sensors

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