A taxonomy for sp 2 carbon allotropes in two dimensions (2D) is proposed where single-
layer structures are assigned a unique symbol associated with the geometry of each …

The race and the discovery of novel two-dimensional (2D) carbon-based materials have
been intensified because many are suitable for energy storage systems, thermoelectric …

Octagonal centered cubic (Occ) carbon allotropes with distinct sp 2, and sp 3 hybridization
have different properties. In this study, four tetragonal novel superhards with mixed sp 3-sp 2 …

The 2D naphthylene-β structure is a theoretically proposed sp2 nanocarbon allotrope based
on the assembly of naphthalene-based molecular building blocks, which features metallic …

The two-dimensional (2D) materials class earned a boost in 2021 with biphenylene
synthesis, which is structurally formed by the fusion of four-, six-, and eight-membered …

A rectangular graphyne sheet is composed of units similar to phenyl rings that are linked by
acetylenic chains, as in hexagonal γ-graphyne. This system is organized over a rectangular …

Clathrates are fully-sp 3 cage-like three dimensional (3D) structures that offer unique
mechanical and electronic properties. Here, the mechanical properties of Type-IC 46, Type-II …

Several bottom-up chemical routes have been developed in the last few years to find ways
to grow new forms of nanocarbon by devising a strategical selection of molecular …

Graphyne nanocarbons are composed of a mixture of sp and sp2 hybridized atoms in
different ratios and distributions. In addition to pure hexagonal systems, non-conventional …

In recent years, silicon carbide (SiC) has once again become a target of interest in the
materials science community, this time with particular interest in two-dimensional materials …