A New Polymorph of Li₄P₂O₇

Subsolidus phase relations of the ZnO–Li2O–P2O5 system

“…In the Li 2 O-P 2 O 5 system, all the three reported compounds [16][17][18][19][20][21][22][23][24][25][26][27][28], LiPO 3 , Li 4 P 2 O 7 and Li 3 PO 4 , were obtained in this work. The LiPO 3 can be well indexed with S.G. P2/n [18], the Li 4 P 2 O 7 with S.G. P1 [21] and the Li 3 PO 4 with S.G. Pnma [28].…”

“…Three compounds were reported in this system with the Li 2 O:P 2 O 5 molar ratios of 1:1 (LiPO 3 ), 2:1 (Li 4 P 2 O 7 ) and 3:1 (Li 3 PO 4 ) [16][17][18][19][20][21][22][23][24][25][26][27][28]. Table 1 Crystallographic data of the binary and ternary compounds in the ZnO-Li2O-P2O5 system obtained in this work, in comparison with the reports in the literature.…”

“…LiPO 3 compound belongs to monoclinic system with S.G. Pn [17] or P2/n [18] or P2 1 /n [19]. Li 4 P 2 O 7 compound belongs to monoclinic system with S.G. P2 1 /n [20] or triclinic system with S.G. P1 [21]. Li 3 PO 4 compound belongs to orthorhombic system with S.G. Pmn2 1 [22] or Pcmn [23][24][25][26][27][28].…”

“…The LiPO 3 can be well indexed with S.G. P2/n [18], the Li 4 P 2 O 7 with S.G. P1 [21] and the Li 3 PO 4 with S.G. Pnma [28].…”

Impedance and modulus analysis of the (Na0.6Ag0.4)2PbP2O7 compound

“…[1][2][3][4][5][6][7]. The phosphate compounds which contain a monovalent cation have attracted researchers due to their remarkable ionic conductivity and their potential value as solid electrolytes for rechargeable alkaline batteries [8,9]. Among them, pyrophosphates with general formula A 2 BP 2 O 7 (A: monovalent element and B: divalent element) has been widely investigated.…”