D. Yu. Voropaeva, M. A. Moshareva, A. B. Il'in, S. A. Novikova, A. B. Yaroslavtsev, “Phase transitions and proton conductivity in hafnium hydrogen phosphate with the NASICON structure”, Mendeleev Commun., 2016, Volume 26, Issue 2,Pages <nobr>152

This article is cited in 5 papers

Communications

Phase transitions and proton conductivity in hafnium hydrogen phosphate with the NASICON structure

D. Yu. Voropaeva^a, M. A. Moshareva^a, A. B. Il'in^b, S. A. Novikova^a, A. B. Yaroslavtsev^a

^a N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
^b A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russian Federation

Abstract: Triclinic NASICON-type hafnium hydrogen phosphate HHf₂(PO₄)₃·0.5H₂O was obtained by ion exchange from LiHf₂(PO₄)₃. The dehydration of HHf₂(PO₄)₃·0.5H₂O (∼ 400 K) followed by a triclinic-rhombohedral phase transition (∼470 K) was observed, and the resulting HHf₂(PO₄)₃ was stable up to 870 K. The proton conductivity of the sample was 4.7×10^–7 Ohm^–1 cm^–1 at 773 K.

Language: English

DOI: 10.1016/j.mencom.2016.03.024