Nested fullerene-like structures

Isothermal Crystallization Kinetics of Novel Isotactic Polypropylene/MoS2 Inorganic Nanotube Nanocomposites

“…In agreement with the kinetic theory of crystallization [25][26][27] independing on the type of regime, the crystallization rate G can be expressed as the following: (8) where G 0 is a pre-exponential term, independent on temperature, U * is the activation energy needed for the chains movement, T 0 represents the temperature at which they are motionless (usually T 0 =T g -30K), R is the universal gas constant, ∆T is the undercooling and equal to Tº m -T c (Tº m is the equilibrium melting temperature) and f is the corrective factor that takes into account the variation of the equilibrium melting enthalpy (∆Hº m ) with temperature, defined as…”

“…Layered metal dichalcogenides such as WS 2 and MoS 2 have shown to form this genuine property. The first synthesis of such nanophases was reported by Tenne in 1992 and 1993, respectively [7,8]. Since then, the number of articles on successful growth of inorganic nanotubes (INTs) from inorganic compounds has increased rapidly, emphasizing the importance of this field for nanotechnology, with potential applications, in catalysis, rechargeable batteries, drug delivery, solar cells and electronics [9,10].…”

Structure and Stability of Molybdenum Sulfide Fullerenes

“…Hollow fullerene-like nanoparticles (inorganic fullerenes (IFs)) and nanotubes (inorganic nanotubes (INTs)) have been synthesized from these inorganic compounds. [1][2][3] Theoretical investigations provided a basic understanding of the electronic and mechanical properties of the INTs. [4][5][6][7] These materials are currently being contemplated for numerous applications, in particular, as superior solid lubricants and as impact-resistant nanocomposites.…”

“…In early work, the formation of hollow MoS 2 clusters with octahedral or tetrahedral shapes was often observed. [2,9,10] Laser ablation was used to produce MoS 2 nano-octahedra with diameters of 3-5 nm. [11] These closed nanocages are the smallest IFs.…”

“…For multilayer fullerenes composed of k shells, the energy of the van der Waals interaction e vdW between the layers can also be considered. The total energy per atom E t /N can then be expressed by Equation (2). The energies e i , e r , and e p can be…”