Funct. Mater. 2019; 26 (1): 58-64.
Low-temperature synthesis of condensed zinc and cobalt (II) phosphate solid solution with the given anion structure
National University of Life and Environmental Sciences of Ukraine, 15 Geroev Oborony Str., 03041 Kyiv, Ukraine
The anionic composition of heat treatment products of crystalline hydrates of the general formula Zn1-xCox(H2PO4)2·2H2O (0 < x < 1.00) under isothermal conditions is determined. Quantitative dependences of the content of condensed phosphates with different anion structure (linear and cyclic) and phosphate acids, which released as intermediate products, on the temperature regime and roasting duration were established. The influence of cation nature is shown. The conditions of the formation and thermal stability of everyone linear condensed phosphates with n = 2-8 and the solid solution of cyclotetraphosfates of the composition Zn1-xCoxP4O12 (0 < x < 1.00) are concretized.
1. T.Kanazawa, Inorganic Phosphate Materials, Elsevier, Amsterdam (1989).
2. L.Shchegrov, N.Antraptseva, V.Kopilevich, Phosphorus Sulfur, 51, 149 (1990). https://doi.org/10.1080/10426509008040703
3. L.Robertson, Etude de Pigments Thermochromes Autour du Cobalt II. Materiaux, Universite Sciences et Technologies, Bordeaux (2010).
4. Y.Chang, N.E.Shi, S.Zhao et al., ACS Appl. Mater. Inter., 34, 22534 (2016). https://doi.org/10.1021/acsami.6b07209
5. Z.A.Konstant, A.P.Dindune, Bivalent Metal Phosphates, Zinatne, Riga (1987) [in Russian].
6. M.Trojan, Thermochim. Acta., 143, 131 (1989). https://doi.org/10.1016/0040-6031(89)85050-6
7. N.Antraptseva, N.Tkachova, I.Ponomaryva, Pol. J. Chem., 80, 1623 (2006).
8. A.Takenara, M.Nakachima, Phos. Res. Bull., 21, 61 (2001). https://doi.org/10.3363/prb1992.12.0_61
9. N.Antraptseva, L.Shchegrov, Ukr. Him. Zh., 50, 1133 (1984).
10. UA Patent, 78492 (2013).
11. N.M.Antraptseva, N.V.Tkachova, J. Appl. Chem., 82, 1153 (2009). https://doi.org/10.1134/S1070427209070015
12. M.T.Averbuch-Pouchot, J. Appl. Crystallogr., 7, 511 (1974). https://doi.org/10.1107/S0021889874010314
13. N.M.Antraptseva, N.V.Solod, Functional Materials, 23, 657 (2016). https://doi.org/10.15407/fm23.04.468
14. R.Y.Melnikova, E.V.Pechkovskiy, E.D.Dzuba et al., Atlas of IR Spectra of Phosphates: Condensed Phosphates, Nauka, Moscow (1985) [in Russian].
15. M.Harcharras, A.Ennaciri, F.Capitelli et al., Vib. Spectrosc., 33, 189 (2003). https://doi.org/10.1016/j.vibspec.2003.09.001
16. JCPDS, Powder Diffraction Fill, Inorganic Phases, JCPDS International Centre for Diffraction Data, Swarthmere, USA, 1986, card No. 36-210, 21-1489
.