Stability, elastic properties and deformation behavior of graphene-based diamond-like phases

Rysaeva, Leysan Kh.; Lisovenko, D. S.; Городцов, В. А.; Baimova, Julia A.

doi:10.1016/j.commatsci.2019.109355

Cited by 26 publications

(8 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stability, elastic moduli, and deformation behavior of GN-diamond-like nanomaterials were studied employing molecular dynamics [116]. The non-elastic deformation in these sp 2 -sp 3 networks can be understood via a change of the bond length and angles.…”

Section: Friction Tribology and Mechanical Propertiesmentioning

confidence: 99%

Mixed sp2–sp3 Nanocarbon Materials: A Status Quo Review

Vejpravová

2021

Nanomaterials

View full text Add to dashboard Cite

Carbon nanomaterials with a different character of the chemical bond—graphene (sp2) and nanodiamond (sp3)—are the building bricks for a new class of all-carbon hybrid nanomaterials, where the two different carbon networks with sp3 and sp2 hybridization coexist, interacting and even transforming into one another. The extraordinary physiochemical properties defined by the unique electronic band structure of the two border nanoallotropes ensure the immense application potential and versatility of these all-carbon nanomaterials. The review summarizes the status quo of sp2 – sp3 nanomaterials, including graphene/graphene-oxide—nanodiamond composites and hybrids, graphene/graphene-oxide—diamond heterojunctions, and other sp2–sp3 nanocarbon hybrids for sensing, electronic, and other emergent applications. Novel sp2–sp3 transitional nanocarbon phases and architectures are also discussed. Furthermore, the two-way sp2 (graphene) to sp3 (diamond surface and nanodiamond) transformations at the nanoscale, essential for innovative fabrication, and stability and chemical reactivity assessment are discussed based on extensive theoretical, computational and experimental studies.

show abstract

Section: Friction Tribology and Mechanical Propertiesmentioning

confidence: 99%

Mixed sp2–sp3 Nanocarbon Materials: A Status Quo Review

Vejpravová

2021

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…The stability, elastic moduli and deformation behavior of graphene-based diamondlike phases were also examined by molecular dynamics simulations [92]. The authors found out that the main mechanisms of non-elastic deformation is the stretching of the covalent bonds and valent angles.…”

Section: Friction Tribology and Mechanical Propertiesmentioning

confidence: 99%

Graphene – Diamond Nanomaterials: A Status Quo Review

Vejpravová¹

2021

Preprint

View full text Add to dashboard Cite

Carbon nanomaterials with a different character of the chemical bond – graphene (sp2) and nanodiamond (sp3) are the building bricks for a new class of all-carbon hybrid nanomaterials, where the two different carbon networks with the sp3 and sp2 hybridization coexist, interact and even transform into one another. The unique electronic, mechanical, and chemical properties of the two border nanoallotropes of carbon ensure the immense application potential and versatility of these all-carbon graphene – diamond nanomaterials. The review gives an overview of the current state of the art of graphene – diamond nanomaterials, including their composites, heterojunctions, and other hybrids for sensing, electronic, energy storage, and other applications. Also, the graphene-to-diamond and diamond-to-graphene transformations at the nanoscale, essential for innovative fabrication, and stability and chemical reactivity assessment are discussed based on extensive theoretical, computational, and experimental studies.

show abstract

“…Molecular dynamic simulation by Grima et al revealed that vacancy defect in C-C bonds may lead to graphene wrinkling to the extent to exhibit auxetic behavior [18,19]. Other simulation works manifested rippled graphene [20,21], porous graphene structure [22], graphene-based carbon foam [23], graphene-based diamond-like phases [24,25] and disordered graphene layers [26] that may lead to nano architecture auxetic materials. These works stimulated further ongoing research, especially studies based on experimental synthesis [27].…”

Section: Introductionmentioning

confidence: 99%

Customizable fabrication for auxetic graphene assembled macrofilms with high conductivity and flexibility

Wang

Song

Qian

et al. 2020

Carbon

View full text Add to dashboard Cite

Auxetic materials with negative Poisson's ratios unusually exhibit intuitive mechanical behaviors, such as cross-section expansion instead of contraction during tension. Such behaviors are interesting because they may enhance unusual mechanical properties. However, controllable preparation of materials with negative Poisson's ratio is still a major challenge.In this study, we report the synthesis of a flexible auxetic graphene assembled macrofilm (GAMF) from graphene oxide nanosheets by a thermal annealing and press assistant method.The obtained materials exhibit good flexibility and significantly wide tunable negative Poisson s ratios ranging from -0.11 to -0.53. We also develop a reconstruction model for characterization the uniaxial tension of GAMF based on X-ray tomographic images. The tensile simulation result predicts the function relationship between Poisson's ratio and critical thickness of pore channels, which is in good agreement with the experimental data. As a result, an effective tunable way is proposed for customizable fabrication of GAMF with tunable negative Poisson's ratios, and the GAMF materials with good flexibility, high electrical conductivity and superior auxetic behavior looks promising for future development of wearable electronics.

show abstract

Stability, elastic properties and deformation behavior of graphene-based diamond-like phases

Cited by 26 publications

References 80 publications

Mixed sp2–sp3 Nanocarbon Materials: A Status Quo Review

Mixed sp2–sp3 Nanocarbon Materials: A Status Quo Review

Graphene – Diamond Nanomaterials: A Status Quo Review

Customizable fabrication for auxetic graphene assembled macrofilms with high conductivity and flexibility

Contact Info

Product

Resources

About