Carbon is a ubiquitous element, graphene as well as carbon nanotubes allotropes are examples of this. These elements have many details that are important for us to comprehend and apply. Let us now take a look at this article.
Introduce graphene
Graphene is an example of a carbon nanomaterial in two dimensions. It is made from carbon atoms as well as SP 2 hybrid orbitals. It boasts excellent optical and mechanical properties. These qualities make it attractive for many applications, including in micro-nano processes, energy and biomedicine. It’s considered a breakthrough material.
Graphene has been around for a while as a concept. It has been known for years that graphite is made up of layers graphene. Scientists used curly Graphene when they first discovered carbon nanotubes. That is, graphene is only one layer. Graphene may be a two dimensional structure. But it is not flat. These fluctuations are not evident in a system with two layers, but they will disappear in a multi-layer arrangement. The graphene atoms are connected to their three surroundings carbon atoms via a unique one-bond bond. The other electron is free to move, so graphene conducts electricity.
One could say that the whole graphene sheet is a large-scale bond. It is easy to prepare graphene. Since the beginning of time, we’ve prepared graphene. With very little force, you can pull off the one-layer graphene when we use a pencil.
General intro of carbon nanotubes
Also known as Ba-based tube, carbon nanotubes are one-dimensional, quantum materials. Each cell is sealed at both ends and has a unique radial and axial size. Carbon nanotubes are made mainly of hexagonal carbon and atoms. They form many to dozens of concentric tube structures. The average distance between layers is around 0.34nm. While the width is typically 2 20nm. You can divide it into three types depending on how the carbon hexagon is oriented along the axial directions: zigzag or armchair. Among them is the helical type, which has chirality. The armchair, zigzag, and spiral CNTs don’t have chirality.
Carbon nanotubes do not always appear straight. They are often convex and concave locally, due to the hexagonal pentagonal, and heptagonal formation. To seal the CNT the Pentagon will appear at its top. Heptagonal nanotubes have concave sides. These topological faults can cause changes in CNTs’ helical and electronic bands. The two carbon nanotubes that are adjacent do not bond directly, but retain a certain distance.
Graphene vs. carbon nanotubes
Graphene stands for the “single layered graphite paper,” and carbon nanotubes refer to the cylinder structures formed by graphene’s curling. The two-dimensional (1D) as well as the 2-dimensional (2D) versions of these nanomaterials can complement each other in both composition and performance. According to the structure, carbon nanotubes have a one-dimensional crystal arrangement of carbon. While graphene is made up of only one carbon layer, it is a two-dimensional structure. Graphene shares many of the same and better properties as carbon nanotubes. These include high conductivity/thermal conductivity, high carrier mobility as well free-electron movement space and strength. Presently, carbon nanotube research has reached an unprecedented level of depth in terms of preparation technology, performance characterization, and application exploration. There are many similarities between the research methods due to their similarity in composition and structure. Study of carbon nanotubes was a key ingredient in many research methods on graphene.
While graphene’s process for development looks very much like that of carbon-nanotubes, it is likely to be significantly different. The dispute between two-dimensional or one-dimensional materials is one of the reasons. It is common for nanowires to be at an disadvantage when competing with thin film materials. One carbon nanotube could be considered to be one crystal, with a high aspect rate. However, the technology used to synthesize carbon nanotube crystals is limited in its ability to produce large size ones. Graphene can be grown in large areas by its two-dimensional crystal structure. Both graphene & carbon nanotubes both have bright futures.
I hope that this article has been helpful.
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