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Basic structures of Dsp 2 C: (a) typical entangled structure, (b) ribbon structure, (c) stacks of graphene layers, and (d) fullerene-like single-layer and multilayer structures.
Source publication
The progress in the practical use of glassy carbon materials has led to a considerable interest in understanding the nature of their physical properties. The electrophysical properties are among the most demanded properties. However, obtaining such materials is associated with expensive and dirty processes. In nature, in the course of geological pr...
Contexts in source publication
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... size and shape of these grids vary depending on the type of supramolecular structure to which the grid belongs. The following main supramolecular structures were found in natural Dsp 2 C: turbostratic stacks of graphene layers (grids), multilayer ribbons, fully enclosed multilayer globules, and partially closed multilayer cups (Figure 3). Nanomaterials 2022, 12, x FOR PEER REVIEW 4 of 25 process, the transformation occurs at a temperature of about 360 °C and a little higher. ...
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... size and shape of these grids vary depending on the type of supramolecular structure to which the grid belongs. The following main supramolecular structures were found in natural Dsp 2 C: turbostratic stacks of graphene layers (grids), multilayer ribbons, fully enclosed multilayer globules, and partially closed multilayer cups (Figure 3). ...
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... structures are present in all studied shungites, as well as in most anthraxolites ( Figure 3). Such a structure was found only at the beginning of its study using highresolution transmission microscopy. ...
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... is difficult to trace the length and bends of the ribbons from 2D images, however, it can be said that the ribbons have a length of tens and (possibly) hundreds of nanometers and are tangled into rather complex configurations, and at the same time loose knots. Single-layer fullerene-like particles 1-2 nm in size are also often present in the structure of Dsp 2 C (Figure 3). ...
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... structures are present in all studied shungites, as well as in most anthraxolites ( Figure 3). Such a structure was found only at the beginning of its study using high-resolution transmission microscopy. ...
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... is difficult to trace the length and bends of the ribbons from 2D images, however, it can be said that the ribbons have a length of tens and (possibly) hundreds of nanometers and are tangled into rather complex configurations, and at the same time loose knots. Single-layer fullerene-like particles 1-2 nm in size are also often present in the structure of Dsp 2 C (Figure 3). ...
Context 7
... size and shape of these grids vary depending on the type of supramolecular structure to which the grid belongs. The following main supramolecular structures were found in natural Dsp 2 C: turbostratic stacks of graphene layers (grids), multilayer ribbons, fully enclosed multilayer globules, and partially closed multilayer cups (Figure 3). Nanomaterials 2022, 12, x FOR PEER REVIEW 4 of 25 process, the transformation occurs at a temperature of about 360 °C and a little higher. ...
Context 8
... size and shape of these grids vary depending on the type of supramolecular structure to which the grid belongs. The following main supramolecular structures were found in natural Dsp 2 C: turbostratic stacks of graphene layers (grids), multilayer ribbons, fully enclosed multilayer globules, and partially closed multilayer cups (Figure 3). ...
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... structures are present in all studied shungites, as well as in most anthraxolites ( Figure 3). Such a structure was found only at the beginning of its study using highresolution transmission microscopy. ...
Context 10
... is difficult to trace the length and bends of the ribbons from 2D images, however, it can be said that the ribbons have a length of tens and (possibly) hundreds of nanometers and are tangled into rather complex configurations, and at the same time loose knots. Single-layer fullerene-like particles 1-2 nm in size are also often present in the structure of Dsp 2 C (Figure 3). ...
Context 11
... structures are present in all studied shungites, as well as in most anthraxolites ( Figure 3). Such a structure was found only at the beginning of its study using high-resolution transmission microscopy. ...
Context 12
... is difficult to trace the length and bends of the ribbons from 2D images, however, it can be said that the ribbons have a length of tens and (possibly) hundreds of nanometers and are tangled into rather complex configurations, and at the same time loose knots. Single-layer fullerene-like particles 1-2 nm in size are also often present in the structure of Dsp 2 C (Figure 3). ...
Citations
... [10][11][12] The natural analogue of glassy carbon is shungite carbon from the Precambrian rocks of Karelia, which widely used in these applications. [13][14][15] Carbon in shungite rocks ranges from 3 at. % up to 97 at. ...
... There are graphene layers as stacks, torn islets, or multilayered tortuous ribbons. [4,13,29] Nevertheless, the carbon structure influence on many properties, primarily conductive and microwave properties. The description of the structure of disordered carbon is difficult. ...
... The conductivity of these samples was previously determined. [13] The molecular structure of carbon was studied using FEI Titan Themis 200-80 scanning transmission electron microscope operating at a voltage of 80 kV. The microscope is equipped with a spherical aberration corrector (Cs) and FEI Ceta 16 M CMOS camera for the correct acquisition of high-resolution images. ...
