Flexible graphene aerogel-based phase change film for solar-thermal energy conversion and storage in personal thermal management applications

Sun, Keyan; Dong, Hongsheng; Kou, Yan; Yang, Huning; Liu, Hanqing; Li, Yangeng; Shi, Quan

doi:10.1016/j.cej.2021.129637

Cited by 134 publications

(62 citation statements)

References 39 publications

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“…The excellent thermal and mechanical properties make it a possible application in thermal management of electronics. In this work of Sun et al. (2021) , a flexible graphene aerogel based porous framework was designed and constructed to infiltrate paraffin ( Figure 8 A).…”

Section: Advanced Flexible Composite Pcmsmentioning

confidence: 99%

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Flexible engineering of advanced phase change materials

et al. 2022

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Section: Advanced Flexible Composite Pcmsmentioning

confidence: 99%

Section: Advanced Flexible Composite Pcmsmentioning

confidence: 99%

Flexible engineering of advanced phase change materials

et al. 2022

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“…Jeong et al [18] and Bartlett et al [19] embedded liquid metal inclusions into a polymer to achieve both flexibility and high thermal conductivity. Sun et al [20] designed a flexible graphene aerogel-based composite phase change film for personal thermal management applications. Although the above designs were all passive, they hold promise for the thermal management of flexible electronic devices.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis on Active Heat Dissipation Design with Embedded Flow Channels for Flexible Electronic Devices

Yin

et al. 2021

Micromachines

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Heat generation is a major issue in all electronics, as heat reduces product life, reliability, and performance, especially in flexible electronics with low thermal-conductivity polymeric substrates. In this sense, the active heat dissipation design with flow channels holds great promise. Here, a theoretical model, validated by finite element analysis and experiments, based on the method of the separation of variables, is developed to study the thermal behavior of the active heat dissipation design with an embedded flow channel. The influences of temperature and flow velocity of the fluid on heat dissipation performance were systematically investigated. The influence of channel spacing on heat dissipation performance was also studied by finite element analysis. The study shows that performance can be improved by decreasing the fluid temperature or increasing the flow velocity and channel density. These results can help guide the design of active heat dissipation with embedded flow channels to reduce adverse effects due to excessive heating, thus enhancing the performance and longevity of electronic products.

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“…Machinery cooling, such as air conditioners and fans, is indispensable to alleviate the heat in summer, but only subjected to the closedenvironment in a considerable energy consumption. While similar cooling strategy is not applicable for open area, effective measure could be attained through the innovation of smart clothing with thermal radiation control (Cai LL et al 2018;Lian YL et al 2020;Miao DG et al 2017;Panwar K et al 2017;Peng LH et al 2019a;Song YN et al 2018;Sun KY et al 2021;Yang YX et al 2021;Yu X et al 2019). Unfortunately, traditional textiles have limited performance in this respect, therefore urging a revolutionary modification of the present textile technologies to address such shortcoming.…”

Section: Introductionmentioning

confidence: 99%

Rational Construction of Superhydrophobic PDMS/PTW@cotton Fabric for Efficient UV/NIR Light Shielding

Huang¹,

Shen²,

Ni³

et al. 2021

Preprint

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Passive daytime radiative cooling (PDRC) material has intrigued increasing attentions with its energy saving potential and smart cloth feature. In this work, PDRC cotton fabric with superhydrophobicity, ultraviolet protection and self-cleaning competency was successful constructed through the deposition chemically-stable potassium titanate whiskers (PTW) and polydimethylsiloxane (PDMS) onto cotton fibers. While featured with ultra-high contact angle of 151.9±0.9 °, the synthesized fabric marked an average temperature drop of ~5.1 ℃, bestowed to its high sunlight reflectivity of 83 % and infrared emissivity of nearly 90 %. On the other hand, real human tests further confirmed the practicality of the modified cotton fabric, with the recorded temperature drops ranged from 3.1~4.7 ℃ under direct sunlight. Such performance elucidated a significant improvement upon PTW/PDMS modification, which outperformed that of pristine cotton fabric. Surmising from these, the synthesized superhydrophobic fabric exhibits advantageous techno-economical index with its excellent performance and simple preparation, therefore manifesting limitless application potential, particularly in outdoor clothing and other facilities.

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Flexible graphene aerogel-based phase change film for solar-thermal energy conversion and storage in personal thermal management applications

Cited by 134 publications

References 39 publications

Flexible engineering of advanced phase change materials

Flexible engineering of advanced phase change materials

Thermal Analysis on Active Heat Dissipation Design with Embedded Flow Channels for Flexible Electronic Devices

Rational Construction of Superhydrophobic PDMS/PTW@cotton Fabric for Efficient UV/NIR Light Shielding

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