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Icosahedral twins

Index Icosahedral twins

An icosahedral twin is a nanostructure appearing for atomic clusters. [1]

22 relations: Bicupola (geometry), Capsid, Catalytic converter, Close-packing of equal spheres, Cluster (physics), Crystal twinning, Cubic crystal system, Cuboctahedron, Dark-field microscopy, Electron diffraction, Heterogeneous catalysis, Icosahedron, Kissing number problem, Miller index, Nanomaterial-based catalyst, Nanotechnology, Quasicrystal, Self-assembly, Self-assembly of nanoparticles, Tetrahedron, Translational symmetry, Transmission electron microscopy.

Bicupola (geometry)

In geometry, a bicupola is a solid formed by connecting two cupolae on their bases.

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Capsid

A capsid is the protein shell of a virus.

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Catalytic converter

A catalytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction (an oxidation and a reduction reaction).

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Close-packing of equal spheres

In geometry, close-packing of equal spheres is a dense arrangement of congruent spheres in an infinite, regular arrangement (or lattice).

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Cluster (physics)

In physics, the term clusters denotes small, multiatom particles.

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Crystal twinning

Crystal twinning occurs when two separate crystals share some of the same crystal lattice points in a symmetrical manner.

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Cubic crystal system

In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.

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Cuboctahedron

In geometry, a cuboctahedron is a polyhedron with 8 triangular faces and 6 square faces.

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Dark-field microscopy

Dark-field microscopy (dark-ground microscopy) describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image.

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Electron diffraction

Electron diffraction refers to the wave nature of electrons.

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Heterogeneous catalysis

In chemistry, heterogeneous catalysis refers to the form of catalysis where the phase of the catalyst differs from that of the reactants.

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Icosahedron

In geometry, an icosahedron is a polyhedron with 20 faces.

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Kissing number problem

In geometry, a kissing number is defined as the number of non-overlapping unit spheres that can be arranged such that they each touch another given unit sphere.

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Miller index

Miller indices form a notation system in crystallography for planes in crystal (Bravais) lattices.

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Nanomaterial-based catalyst

Nanomaterial-based catalysts are usually heterogeneous catalysts broken up into metal nanoparticles in order to speed up the catalytic process.

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Nanotechnology

Nanotechnology ("nanotech") is manipulation of matter on an atomic, molecular, and supramolecular scale.

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Quasicrystal

A quasiperiodic crystal, or quasicrystal, is a structure that is ordered but not periodic.

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Self-assembly

Self-assembly is a process in which a disordered system of pre-existing components forms an organized structure or pattern as a consequence of specific, local interactions among the components themselves, without external direction.

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Self-assembly of nanoparticles

Self-assembly is a phenomenon where the components of a system assemble themselves to form a larger functional unit.

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Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.

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Translational symmetry

In geometry, a translation "slides" a thing by a: Ta(p).

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Transmission electron microscopy

Transmission electron microscopy (TEM, also sometimes conventional transmission electron microscopy or CTEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image.

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References

[1] https://en.wikipedia.org/wiki/Icosahedral_twins

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