A hierarchically encapsulated phase-change film with multi-stage heat management properties and conformable self-interfacing contacts for enhanced interface heat dissipation

Qi, Lü; Wang, Xiang; Zhao, Hongwei; Wang, Xun-rui; Zhao, Jian; Kong, Haoran; Wang, Tao; Liang, Chao; Li, Jinhong; Xu, Wayne Qiang

doi:10.1039/d2ta05582a

Cited by 5 publications

(5 citation statements)

References 69 publications

(78 reference statements)

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“…The phase-change materials are mainly alkanes and paraffin [150,151]. Just like the MPCM slurry, the existing numerical simulation and experimental studies of phase-change material emulsions are mostly concentrated on the conventional scale, and there are not enough on MCHSs.…”

Section: Phase-change Materials Emulsionmentioning

confidence: 99%

A comprehensive review on microchannel heat sinks for electronics cooling

Yu,

Li,

Cao

2024

Int. J. Extrem. Manuf.

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The heat dissipation density of electronic devices is increasing dramatically, which causes a serious heat bottleneck in electronics. Operating temperature over its rated temperature results in performance deterioration and even device damage. With the development of micro-machining technologies, microchannel heat sinks have become one of the best ways to remove the considerable amount of heat generated by the high-power electronics. It shows the advantages of large specific surface area, small size, saving coolant and high heat transfer coefficient. This paper comprehensively overviews the research progress in microchannel heat sinks and generalizes the hotspots and bottlenecks of this area. The heat transfer mechanisms and performances of different channel structures, coolants, channel materials and some other influence factors are reviewed. Besides, this paper classifies the heat transfer enhancement technology and reviews the related studies on both the single-phase and phase-change flow and heat transfer. The comprehensive review is expected to provide theoretical reference and technical guidance for further research and application of microchannel heat sinks in the future.

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Section: Phase-change Materials Emulsionmentioning

confidence: 99%

A comprehensive review on microchannel heat sinks for electronics cooling

Yu,

Li,

Cao

2024

Int. J. Extrem. Manuf.

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“…The surface of the TiO 2 shell was then decorated with a CS-matrix layer containing CB nanoparticles as an antibacterial and light-absorbing bifunctional material. N -Docosane as a paraffin-type PCM can store and release large amounts of heat energy during the melting and cooling phase-transition processes in a narrow temperature range . Such a prominent thermophysical property makes n -docosane become a satisfactory heat energy-storage material to address intermittent solar irradiation for an interfacial evaporator.…”

Section: Introductionmentioning

confidence: 99%

“…N-Docosane as a paraffin-type PCM can store and release large amounts of heat energy during the melting and cooling phase-transition processes in a narrow temperature range. 27 Such a prominent thermophysical property makes n-docosane become a satisfactory heat energystorage material to address intermittent solar irradiation for an interfacial evaporator. Under solar irradiation, solar photothermal energy can be stored as latent heat by the n-docosane core.…”

Section: ■ Introductionmentioning

confidence: 99%

Highly Efficient, Antibacterial, and Salt-Resistant Strategy Based on Carbon Black/Chitosan-Decorated Phase-Change Microcapsules for Solar-Powered Seawater Desalination

Chen

Zheng

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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Solar-powered interfacial evaporation has been recognized to be a promising and sustainable technology for seawater desalination, in view of the challenge of freshwater scarcity and fossil energy storage. Nevertheless, current cuttingedge interfacial evaporation systems mostly ignore the issues of intermittent solar irradiation and bacterial contamination. We have hereby developed a novel type of an interfacial evaporator equipped with carbon black (CB)/chitosan (CS)-decorated phase-change microcapsules as a multifunctional photothermal material for solar-powered seawater desalination, based on a highly efficient, antibacterial, and salt-resistant multipurpose strategy. In the developed microcapsules, an n-docosane phase-change material (PCM) core was engulfed in a TiO 2 shell, followed by surface decorating a CB/CS nanocomposite layer. A high thermal energystorage capacity of more than 140 J g −1 was achieved, thanks to tight sealing of n-docosane as a PCM core in the perfect core−shell structured microcapsules. Moreover, a rational combination of CS and CB nanoparticles not only contributes an extremely high solar absorption efficiency of 95.04% and good wettability to the as-synthesized microcapsules, but also imparts outstanding antibacterial and salt-resistant abilities to them. These innovative designs enable the developed evaporator to gain a high evaporation rate of 2.58 kg m −2 h −1 , along with an evaporation efficiency higher than 90% for consecutive and stable evaporation of seawater under intermittent solar illumination. Compared to conventional evaporators without a PCM, there is an increase by 1.03 kg m −2 in the total water production of the develop evaporator under natural solar illumination for 8 h on a semicloudy day. The resultant evaporated water presents good vegetation compatibility to meet the requirement of crop growth for agricultural cultivation. This work provides a new pathway for designing and developing the high-performance interfacial evaporators with prominent antibacterial and salt-resistant abilities to produce purified water through solar-powered sustainable seawater desalination.

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“…1–3 The accompanying overheating leads to a decline in the performance and lifespan and even brings about safety risks. 4,5 Therefore, it is crucial to develop efficient thermal management materials and technologies for timely heat dissipation of electronics and electrochemical energy storage devices to maintain a relatively safe operating temperature.…”

Section: Introductionmentioning

confidence: 99%

Flexible composite phase change materials with enhanced thermal conductivity and mechanical performance for thermal management

Li¹,

Zhou²,

Wang³

et al. 2023

J. Mater. Chem. A

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A hierarchically encapsulated phase-change film with multi-stage heat management properties and conformable self-interfacing contacts for enhanced interface heat dissipation

Abstract: With the rapid evolution of power and packing densities of microelectronic and energy storage devices, timely heat dissipation towards instantaneous high intensity heat flow is becoming increasingly significant to maintain...

Cited by 5 publications

References 69 publications

A comprehensive review on microchannel heat sinks for electronics cooling

A comprehensive review on microchannel heat sinks for electronics cooling

Highly Efficient, Antibacterial, and Salt-Resistant Strategy Based on Carbon Black/Chitosan-Decorated Phase-Change Microcapsules for Solar-Powered Seawater Desalination

Flexible composite phase change materials with enhanced thermal conductivity and mechanical performance for thermal management

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