The CsCaF3-x Hx solid solution (0 ≤ x ≤ 1.70): Structural characteristics and hydrogen diffusion investigation

Hyung Ho Park; Jean Senegas; Jean Maurice Reau; Michel Pezat; Bernard Darriet; Paul Hagenmuller

doi:10.1016/0025-5408(88)90202-4

The CsCaF_3-x H_x solid solution (0 ≤ x ≤ 1.70): Structural characteristics and hydrogen diffusion investigation

Hyung Ho Park, Jean Senegas, Jean Maurice Reau, Michel Pezat, Bernard Darriet, Paul Hagenmuller

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The investigation of the substitution of hydrogen to fluorine in CsCaF₃ shows existence of a solid solution CsCaF_3-xH_x (0 ≤ x ≤ 1.70) with cubic perovskite type structure. Both X-ray powder diffraction and wide line NMR show a statistical distribution of hydrogen and fluorine anions. The thermal evolution of the line width in the NMR spectra for ¹H and ¹⁹F has been studied. The hydride ion is the only mobile one. Ionic conductivity measurements seem to confirm a diffusion mechanism based on anionic hydrogen vacancies.

Original language	English
Pages (from-to)	1127-1138
Number of pages	12
Journal	Materials Research Bulletin
Volume	23
Issue number	8
DOIs	https://doi.org/10.1016/0025-5408(88)90202-4
Publication status	Published - 1988 Aug

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All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

Park, H. H., Senegas, J., Reau, J. M., Pezat, M., Darriet, B., & Hagenmuller, P. (1988). The CsCaF_3-x H_x solid solution (0 ≤ x ≤ 1.70): Structural characteristics and hydrogen diffusion investigation. Materials Research Bulletin, 23(8), 1127-1138. https://doi.org/10.1016/0025-5408(88)90202-4

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10.1016/0025-5408(88)90202-4