Solvent evaporation induced self-assembly of graphene foam for thermally conductive polymers

Ma, Jingbo; Zhou, Xufeng; Ding, Shiyun; Liu, Zhaoping

doi:10.1039/c7ra01670k

Cited by 12 publications

(8 citation statements)

References 35 publications

(34 reference statements)

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“…The aerogel needs to be annealed properly in order to recover the thermal conductivity of pristine graphene/h-BN as much as possible, while retaining the mechanical strength of as-prepared monolith. Efforts have been devoted to improving the loading fraction by condensing the aerogel, 164 or controllable synthesis for anisotropic thermal conductive frameworks. 165 Many other factors are also essential for real applications such as clamping pressure, cycle ability, and liquid leakage.…”

Section: Methods Of Thermal Conductivity Measurementsmentioning

confidence: 99%

Two-Dimensional Materials for Thermal Management Applications

Song

Liu

et al. 2018

Joule

442

234

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With the advances of the electronics industry, the continuing trend of miniaturization and integration imposes challenges of efficient heat removal in nanoelectronic devices. Two-dimensional (2D) materials, especially graphene and hexagonal boron nitride (h-BN), are widely accepted as ideal candidates for thermal management materials due to their high intrinsic thermal conductivity and good mechanical flexibility. In this review, we introduce phonon dynamics of solid materials and thermal measurement methods at nanoscale, and highlight the unique thermal properties of 2D materials in relation to sample thickness, domain size, and interfaces. In addition, we discuss recent achievements of thermal management applications in which 2D materials act as heat spreader and thermal interface materials based on their controlled growth and selfassembly. Finally, critical consideration on the challenges and opportunities in thermal management applications of 2D materials is presented.

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Section: Methods Of Thermal Conductivity Measurementsmentioning

confidence: 99%

Two-Dimensional Materials for Thermal Management Applications

Song

Liu

et al. 2018

Joule

442

234

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“…However, it should be noted that in the case of pure water, the nanosheets were found to form aggregated clusters, which indeed exhibited a partially vertical aligned arrangement (Figure S5, Supporting Information). In a previous study on solvent evaporation induced self‐assembly of graphene, a similar solvent effect was employed and the resulting oriented arrangement was attributed to the appropriate surface tension of mixed solvent. Here, it is possible that water molecules tend to induce assembly of nanosheets into stacked clusters by interacting strongly with individual nanosheets .…”

mentioning

confidence: 99%

Evaporation‐Induced Vertical Alignment Enabling Directional Ion Transport in a 2D‐Nanosheet‐Based Battery Electrode

Zhu

Zhang

et al. 2020

Advanced Materials

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2D nanosheets have been widely explored as electrode materials owing to their extraordinarily high electrochemical activity and fast solid‐state diffusion. However, the scalable electrode fabrication based on this type of material usually suffers from severe performance losses due to restricted ion‐transport kinetics in a large thickness. Here, a novel strategy based on evaporation‐induced assembly to enable directional ion transport via forming vertically aligned nanosheets is reported. The orientational ordering is achieved by a rapid evaporation of mixed solvents during the electrode fabrication process. Compared with conventional drop‐cast electrodes, which exhibit a random arrangement of the nanosheets and obvious decrease of rate performance with increasing thickness, the electrode based on the vertically aligned nanosheets is able to retain the original high rate capability even at high mass loadings and electrode thickness. Combined electrochemical and structural characterization reveals the electrode composed of orientation‐controlled nanosheets to possess lower charge‐transfer resistances, leading to more complete phase transformation in the active material.

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“…The properties of how the graphene in the CP is embedded can be studied by several techniques. For instance, TGA allows one to study the loading of the sample by analyzing the weight loss proportion of the composites [ 152 , 175 ], while FT-IR and UV–Vis can identify specific groups of the CP backbone to confirm that no degradation has occurred during the fabrication process [ 153 ]. Moreover, the chemical composition of the sample, such as the oxygen functionality after reduction of the composite and its bonding structure, can be studied by XPS [ 153 ].…”

Section: Graphene Mixed With Cpmentioning

confidence: 99%

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

et al. 2021

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Carbon nanomaterials are at the forefront of the newest technologies of the third millennium, and together with conductive polymers, represent a vast area of indispensable knowledge for developing the devices of tomorrow. This review focusses on the most recent advances in the field of conductive nanotechnology, which combines the properties of carbon nanomaterials with conjugated polymers. Hybrid materials resulting from the embedding of carbon nanotubes, carbon dots and graphene derivatives are taken into consideration and fully explored, with discussion of the most recent literature. An introduction into the three most widely used conductive polymers and a final section about the most recent biological results obtained using carbon nanotube hybrids will complete this overview of these innovative and beyond belief materials.

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Solvent evaporation induced self-assembly of graphene foam for thermally conductive polymers

Abstract: Graphene foam prepared by evaporation induced self-assembly is effective to significantly improve the thermal conductivity of epoxy.

Cited by 12 publications

References 35 publications

Two-Dimensional Materials for Thermal Management Applications

Two-Dimensional Materials for Thermal Management Applications

Evaporation‐Induced Vertical Alignment Enabling Directional Ion Transport in a 2D‐Nanosheet‐Based Battery Electrode

Carbon Nanomaterials Embedded in Conductive Polymers: A State of the Art

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