Ultrathin, Washable, and Large‐Area Graphene Papers for Personal Thermal Management

Guo, Yang; Dun, Chaochao; Xu, Junwei; Mu, Jiuke; Li, Peiyun; Gu, Li; Hou, Chengyi; Hewitt, Corey A.; Zhang, Qinghong; Li, Yaogang; Carroll, David; Wang, Hongzhi

doi:10.1002/smll.201702645

Cited by 199 publications

(121 citation statements)

References 28 publications

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“…Therefore, high-pressure compression is always conducted to remove air pores from the GFs. Compared to the GFs obtained by the vacuum filtration method, the GFs from other top-down strategies can have a larger area and a different shape [22]. All these GFs obtained from the top-down strategies show excellent flexibility, as seen in Figure 6, where the GFs can be folded into complex structures [22].…”

Section: Macro-and Micro-scale Morphologies Of Free-standing Graphenementioning

confidence: 99%

“…Both the functional group-free and defect-free crystals benefit from the thermal conduction in the GFs. Guo et al combined blade-coating and direct evaporation to fabricate self-standing GO films [22]. After being reduced by vitamin C, the rGO films achieved a high thermal conductivity of 2600 W/m·K.…”

Section: Thermal Conductivity Of Free-stranding Graphene Filmsmentioning

confidence: 99%

“…The rGO films effectively reduced the temperature of the LED hot spot, 3 °C difference after few minutes shown in Figure 9b, confirming the heat dissipation ability of the as-prepared rGO films. Guo et al fabricated ultra-flexible, lightweight, and stretchable rGO films for wearable thermal management components [22]. They designed the rGO films into kirigami structures and integrated them into cloth for personal thermal management, as displayed in Figure 10.…”

Section: Applications Of Free-standing Graphene Films In Thermal Engimentioning

confidence: 99%

“…Coatings 2018, 8s 2018, 8, x Guo et al fabricated ultra-flexible, lightweight, and stretchable rGO films for wearable thermal management components [22]. They designed the rGO films into kirigami structures and integrated them into cloth for personal thermal management, as displayed in Figure 10.…”

Section: Applications Of Free-standing Graphene Films In Thermal Engimentioning

confidence: 99%

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Recent Advances in Graphene-Based Free-Standing Films for Thermal Management: Synthesis, Properties, and Applications

Gong

Wang

et al. 2018

Coatings

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Thermal management in microelectronic devices has become a crucial issue as the devices are more and more integrated into micro-devices. Recently, free-standing graphene films (GFs) with outstanding thermal conductivity, superb mechanical strength, and low bulk density, have been regarded as promising materials for heat dissipation and for use as thermal interfacial materials in microelectronic devices. Recent studies on free-standing GFs obtained via various approaches are reviewed here. Special attention is paid to their synthesis method, thermal conductivity, and potential applications. In addition, the most important factors that affect the thermal conductivity are outlined and discussed. The scope is to provide a clear overview that researchers can adopt when fabricating GFs with improved thermal conductivity and a large area for industrial applications.

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Section: Macro-and Micro-scale Morphologies Of Free-standing Graphenementioning

confidence: 99%

Section: Thermal Conductivity Of Free-stranding Graphene Filmsmentioning

confidence: 99%

Section: Applications Of Free-standing Graphene Films In Thermal Engimentioning

confidence: 99%

Section: Applications Of Free-standing Graphene Films In Thermal Engimentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Graphene-Based Free-Standing Films for Thermal Management: Synthesis, Properties, and Applications

Gong

Wang

et al. 2018

Coatings

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“…B) Demonstration of a graphene paper‐based kirigami‐structured wearable PTM device and the heating‐up and cooling‐down process with an applied voltage of 3.2 V. Reproduced with permission. [ 9 ] Copyright 2019, Wiley. C) Optical images of graphene film and fiber, SEM images of graphene fibers, photographs and IR images of graphene fibers and fabric attached on human finger and wrist.…”

Section: Advanced Strategiesmentioning

confidence: 99%

Emerging Materials and Strategies for Personal Thermal Management

Liu

Shin

et al. 2020

Advanced Energy Materials

404

242

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us warm in cold climates and shielded us from the nakedness for modesty and civilization. [1,2] Cloth is also a platform for artists, designers, and tailors to advance the clothing demands with emerging materials, process, and fashion. [2] While the majority of the functionalities of clothes lie in their physical attributes, such as their softness, breathability, air/ vapor permeability, and, of course the appearance, their role in thermal management is equally, if not more, important. The primary goal of clothing is to satisfy human being's basic needs in thermal comfort, by providing cooling in the hot environment or heating in the cold environment. [1] The energy management aspect of clothing is becoming an increasingly important and attractive aspect due to our increasing awareness to energy consumption and our persisting pursuit of comfort and health. The finite availability and the associated environmental consequence of fossil fuels have motivated us to save energy from virtually all aspects of our daily lives. A suitable thermal envelop is a necessity for our living and working. To create a comfortable indoor environment, the building heating, ventilation, and air conditioning (HVAC) systems are widely used for space cooling and heating at the expense of excessive energy consumption. [3][4][5][6] According to United States In this decade, the demands of energy saving and diverse personal thermoregulation requirements along with the emergence of wearable electronics and smart textiles give rise to the resurgence of personal thermal management (PTM) technologies. PTM, including personal cooling, heating, insulation, and thermoregulation, are far more flexible and extensive than the traditional air/liquid cooling garments for the human body. Concomitantly, many new advanced materials and strategies have emerged in this decade, promoting the thermoregulation performance and the wearing comfort of PTM simultaneously. In this review, an overview is presented of the state-ofthe-art and the prospects in this burgeoning field. The emerging materials and strategies of PTM are introduced, and classed by their thermal functions. The concept of infrared-transparent visible-opaque fabric (ITVOF) is first highlighted, as it triggers the work on advanced PTM by combining it with radiative cooling, and the corresponding implementations and realizations are subsequently introduced, followed by wearable heaters, flexible thermoelectric devices, and sweat-management Janus textiles. Finally, critical considerations on the challenges and opportunities of PTM are presented and future directions are identified, including thermally conductive polymers and fibers, physiological/psychological statistical analysis, and smart PTM strategies.

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Water‐Based Polyurethane Heating Film with Double‐Layer Conductive Network for a Rapid Electrothermal Response

Shen,

Xiang,

Kuzhandaivel

et al. 2024

Adv Eng Mater

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Carbon‐based composite materials have garnered widespread attention in the field of Personal Thermal Management (PTM). In these applications, constructing conductive fillers with a highly cross‐linked network is key to achieving the rapid electrothermal conversion of materials. Herein, a novel carbon‐based composite material was successfully developed using screen printing technology, with a waterborne polyurethane (WPU) matrix embedded with carbon nanotubes (CNTs) and calcein‐modified graphene nanosheets (CAG). Due to the strong π‐π conjugation interactions present in the highly cross‐linked carbon‐based network, the resulting CAG‐CNTs/WPU composite forms a three‐dimensional conductive network, which not only demonstrates a significant synergistic effect but also facilitates efficient transport of electrons and phonons. Experimental results show that the CAG‐CNTs/WPU composite possesses excellent electrothermal conversion properties and an upper high thermal conductivity (3.10 W·m‐1·K‐1). At a low voltage of 5 V, the composite exhibited a rapid response, increasing to 50 °C in 20 s. This research not only highlights the importance of adopting environmentally friendly preparation methods but also emphasizes the synergistic role played by two‐dimensional graphene nanosheets and one‐dimensional carbon nanotubes in building an efficient three‐dimensional electrothermal network, which has significant scientific and application value in advancing PTM applications.This article is protected by copyright. All rights reserved.

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Ultrathin, Washable, and Large‐Area Graphene Papers for Personal Thermal Management

Cited by 199 publications

References 28 publications

Recent Advances in Graphene-Based Free-Standing Films for Thermal Management: Synthesis, Properties, and Applications

Recent Advances in Graphene-Based Free-Standing Films for Thermal Management: Synthesis, Properties, and Applications

Emerging Materials and Strategies for Personal Thermal Management

Water‐Based Polyurethane Heating Film with Double‐Layer Conductive Network for a Rapid Electrothermal Response

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