Modified solid-state metathesis route to ternary lithium silicon nitrides: Li2SiN2

Facile Route to Nitrides: Transformation from Single Element to Binary and Ternary Nitrides at Moderate Temperature through a New Modified Solid-State Metathesis

“…α-Si 3 N 4 , for instance, was normally prepared at more than 1350 °C using Si powder and N 2 as the precursors while β-Si 3 N 4 was required to be synthesized at more than 1500 °C for 72 h using Si powder and NH 3 as precursors. Recently, Chen et al reported the reaction between Si and Li 3 N with a variation ratio from 2:4.5 to 4:4.5 . It was found that a large series of molar ratios (Li 3 N to Si) can only approach the ternary nitride of Li 2 SiN 2 , and then, it is speculated that for the case of Si, there also exist a two-step reaction process as described by eq .…”

Ba32[Li15Si9W16N67O5]: A Barium‐Containing Oxonitridolithotungstosilicate with a Highly Condensed Network Structure

“…For example, Li 2 SiN 2 , Li 8 SiN 4 , as well as Li 14 Ln 5 [Si 11 N 19 O 5 ]O 2 F 2 (with Ln = Ce and Nd) have been described as Li + conductors, which makes them interesting for potential applications in lithium batteries . In the (oxo)nitridosilicate compound class, several representatives with Li and Ba, such as, LiSiON, LiSi 2 N 3 ,, Li 2 SiN 2 ,, Li 8 SiN 4 , BaSiN 2 , BaSi 6 N 8 , BaSi 7 N 10 , Ba 2 Si 5 N 8 , Ba 5 Si 2 N 6 , and BaSi 6 N 8 O have been reported . Furthermore, some alkaline‐earth‐containing lithium (oxo)nitridosilicates with Ca and Sr, namely, Li 2 Sr 4 Si 4 N 8 O, Li 2 CaSi 2 N 4 , and Li 2 Ca 2 [Mg 2 Si 2 N 6 ], have been described in the literature .…”

Ionic A Si 2 N 3 ( A =Li, Na, K and Rb) stabilized by the covalent Si–N bonding: First-principles calculations

“…Ternary lithium silicon nitrides synthesized over decades have been rapidly growing interests in the potential applications for solid state electrolytes and luminescence materials [1]. Interestingly, the structure and composition of ternary lithium silicon nitrides, including LiSi 2 N 3 [2,3], Li 2 SiN 2 [4][5][6], Li 5 SiN 3 [7,8], Li 8 SiN 4 [7,9], Li 18 Si 3 N 10 [7] and Li 21 Si 3 N 11 [7], can be tuned through a solidstate reaction of Li 3 N and Si 3 N 4 at specific conditions. Among them, the most stable LiSi 2 N 3 phase adopts a wurtzite-type structure with Cmc2 1 symmetry (space group No.…”