Kinetic and thermodynamic investigation of cBN formation in the system BN-Mg 3 N 2

Carbon Nanotubes as Nanoreactors for Fabrication of Single-Crystalline Mg3N2 Nanowires

“…14,15 Mg 3 N 2 is widely used as a catalyst and a nitriding agent during the preparation of various nitrides. 16,17 Mg 3 N 2 is a direct energy gap semiconductor (∼2.8 eV) and thus may serve as a potential high-temperature semiconducting material and/or component of a semiconductor heterostructure useful in nanoelectronics. 18 Due to fast decomposition of Mg 3 N 2 in the presence of water in the atmosphere (Mg 3 N 2 + 6H 2 O f 3Mg(OH) 2 + 2NH 3 ), 19 the synthesis of single-crystalline Mg 3 N 2 nanowires has not yet been accomplished and remains a challenge.…”

“…Driven by the prospective applications in mesoscopic physics and nanoscale technology, many material systems including group IV, , III−V, , and II−VI semiconductors, , elemental metals and alloys, , oxides, , sulfides, carbides, and hydroxides have successfully been prepared in the form of one-dimensional (1D) nanostructuresnanowires, nanorods, and nanotubes using various methods. Magnesium nitride, Mg 3 N 2 , has an anti-bixbyite structure with the body-centered cubic (bcc) unit cell (space group: Ia -3) known also for some other alkaline rare-earth metal (M 3 N 2 , M = Be, Mg, Ca) nitrides. , Mg 3 N 2 is widely used as a catalyst and a nitriding agent during the preparation of various nitrides. , Mg 3 N 2 is a direct energy gap semiconductor (∼2.8 eV) and thus may serve as a potential high-temperature semiconducting material and/or component of a semiconductor heterostructure useful in nanoelectronics . Due to fast decomposition of Mg 3 N 2 in the presence of water in the atmosphere (Mg 3 N 2 + 6H 2 O → 3Mg(OH) 2 + 2NH 3 ), the synthesis of single-crystalline Mg 3 N 2 nanowires has not yet been accomplished and remains a challenge.…”

Theoretical Investigation of the High-Pressure Structure, Phase Transition, and Mechanical and Electronic Properties of Mg3N2

“…For ε-Mg 3 N 2 , the coordination environments are quite different: each N1 atom is bonded to one Mg1 atom, three Mg2 atoms and two Mg3 atoms, forming a distorted octahedral, while each N2 atom exhibits a 7-fold by different types of Mg atoms. Mg2 and Mg3 atoms exhibits a 4fold coordination (tetrahedrally) and Mg1 a 5-fold coordination (pyramidally) by N atoms, the coordination description being [Mg 1/3 [5] Mg 1/3 [4] Mg 1/3 [4] N 3/8 [6] N 5/8 [7] ]. The average coordination number, which is defined by the coordination of one atom to its nearest neighbors averaged over all atoms belonging to the same species, may give us some assumption on the effect of high-pressure on the packing of the studied phases.…”

“…Some binary nitrides, such as AlN and Si 3 N 4 , have been widely used as high-performance engineering and substrate materials in the semiconductor industry . In industry, Mg 3 N 2 possesses various applications, such as nitriding agent in reactions leading to formation of various nitrides, − as catalyst for the synthesis of superhard silicon nitride and cubic boron nitride, , and as additive in the refinement process of steel . Beyond that, the related magnesium-containing nitrides are potential high-temperature materials and substrates or other heterostructure components , in the electronic industry.…”

Structural Properties and ELNES of Polycrystalline and Nanoporous Mg3N2

“…Magnesium nitride (Mg 3 N 2 ) is a frequently encountered catalyst and used, for example, in the synthesis of alloys, ceramics, and other more complex nitrides, such as rare-earth metal nitrides, very hard silicon nitride, and cubic boron nitride (Lorenz et al, 1997; Parkin & Nartowski, 1998; Hao et al, 2009). Unlike the more common transition metal nitrides, carbon nitride and boron nitride, which have covalent and metallic bonding, the alkaline earth metal nitrides including Mg 3 N 2 are considered predominately to display mixed ionic-covalent bonding (Toth, 1971; Schubert, 1982; Zhang et al, 1995; Gregory, 1999; Zhang & Wang, 2013).…”