Capturing Gases in Carbon Honeycomb

Krainyukova, N. V.

doi:10.1007/s10909-016-1727-1

Cited by 21 publications

(34 citation statements)

References 32 publications

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“…We can also see that the general decay in Fig. 7 tends to split into at least two stages or more that correlates with the previous observation [4,5] of the stepwise decrease of the absorbed Kr and Xe amounts in CH matrices. This effect is ascribed to the capture of argon atoms in channels with different sizes.…”

Section: S å S åsupporting

confidence: 90%

“…The procedure of production of CHs used in experiments on absorption [1,[4][5][6] most exhaustively described in [1,4] (Fig. 1).…”

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

“…1. (Color online) The scheme of the CH film preparation by means of carbon sublimation from the graphitic rods [4]. graphitic rods with the parameters corresponding to the faster deposition it has been found that honeycomb structures are still absolutely dominant.…”

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

“…The experimental studies of the CH structures produced by the method described above as well as composites based on carbon structures filled with absorbed gases were performed in [1,[4][5][6] by means of Transmission High-Energy Electron Diffraction (THEED). The analysis method typically applied to the sets of the diffraction data obtained in the low-temperature experiment can be briefly described as follows [4,6].…”

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

“…This anisotropy is explained by the direction-dependent effective elastic constants. It was found in the theoretical study [36] that the cell irregularity in random CH structures found in the experimental studies [1,4] essentially reduces the thermal conductivity of CHs but it can be improved again by external tensile strain.…”

Section: Theory Of Chs and Important Applicationsmentioning

confidence: 99%

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Absorption of atomic and molecular species in carbon cellular structures (Review article)

Krainyukova

Kuchta

Firlej

et al. 2020

Low Temperature Physics

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The paper presents a brief review of the recent developments in the field of absorption of atomic and molecular species in carbon cellular structures. Such absorbing objects can be distinctly recognized among a large family of carbon porous materials owing to potential and already observed in experiments very high capacity to soak and to keep inside different substances, which at usual conditions outside the porous matrices may often stay only in a gaseous form. High capacity filling is attained owing to single graphene-like walls separating different cells in the whole structures providing their lightweight. This property of cellular structures makes them very promising for numerous technological applications such as hydrogen storage in fuel cells and molecular sieving in membranes made from such structures or for their usage in microelectronics, photovoltaics and production of Li-ion batteries. Independently of the targeted applications gases are good candidates for probing tests of carbon matrices themselves.

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Section: S å S åsupporting

confidence: 90%

“…The procedure of production of CHs used in experiments on absorption [1,[4][5][6] most exhaustively described in [1,4] (Fig. 1).…”

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

Section: Carbon Honeycomb Structuresmentioning

confidence: 99%

Section: Theory Of Chs and Important Applicationsmentioning

confidence: 99%

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Absorption of atomic and molecular species in carbon cellular structures (Review article)

Krainyukova

Kuchta

Firlej

et al. 2020

Low Temperature Physics

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Tensile and Compressive Behavior of CHC‐Reinforced Copper using Molecular Dynamics

2023

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The development of highly tough and ductile metal composites is of particular importance for structural applications, namely in transport industries. There has been ongoing research efforts to harness graphene's outstanding mechanical properties by using it as nanofiller in the mechanical reinforcement of metal nanocomposites, [1][2][3] thus overcoming the typical strength-ductility trade-off. However, graphene's 2D structure brings several processing limitations, such as its tendency to restack and aggregate due to strong van der Waals interactions between layers [4] or low bending rigidity that leads to surface wrinkling, thus delaying a good stress distribution of stresses. [5] One strategy to overcome these limitations is to assemble graphene in 3D networks. [6] Carbon honeycombs (CHC) are novel carbon allotropes that consist in 3D cellular arrangements of graphene nanoribbons connected by sp 3 -hybridized carbon-edge atoms. These graphene nanoribbons form the "walls" of periodic hexagonal cells in a 3D structure that resembles a honeycomb. CHCs were first theorized by Karfunkel and Dressler in 1992, [7] but only in 2016 were they experimentally synthetized by Krainyukova et al. [8] from the deposition of vacuum-sublimated graphite.CHC's unique properties, such as high sorption and storage capacities, [9][10][11][12] membrane sieving, [13] high thermal conductivity, [14][15][16][17] or superior mechanical energy absorbing capacity [18] ), have been predicted mostly by first principles and molecular dynamics (MD) methods. The latter methods were also used to explore in detail the mechanical properties of CHCs.Using first principles, Pang et al. [19] demonstrated that CHCs have high tensile strength depending on cell size and show a marked anisotropic Poisson's ratio effect. They also realized that the honeycomb's stability is related to the combination of sp 2 bonding of graphene nanoribbons with sp 3 carbon bonding in the nanoribbons' junctions.Zhang et al. [20] used density-functional theory (DFT) and MD to study in-plane compressive loading of CHC and found that its mechanical properties are mainly dependent on cell size and on the density of junctions between graphene nanoribbons. They also observed a self-localized deformation behavior in CHC under compression.Gu et al. [21] employed DFT calculations and MD to show that CHCs can have remarkable strength and ductility even for small densities (0.5 g cm À3 ). They calculated strengths as high as

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A nonlocal continuum model for the buckling of carbon honeycombs

Zhang

2018

Meccanica

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Capturing Gases in Carbon Honeycomb

Cited by 21 publications

References 32 publications

Absorption of atomic and molecular species in carbon cellular structures (Review article)

Absorption of atomic and molecular species in carbon cellular structures (Review article)

Tensile and Compressive Behavior of CHC‐Reinforced Copper using Molecular Dynamics

A nonlocal continuum model for the buckling of carbon honeycombs

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