Effect of temperature and high pressure on Mn2+ EPR spectra in K3H(SO4)2 fast-proton conductor

被引:2
作者
Ostrowski, Adam [1 ]
Krupska, Aldona [1 ]
机构
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
关键词
proton conductors; phase transitions; electron paramagnetic resonance;
D O I
10.1080/01411590600892518
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The linewidth Delta H-pp and spin-Hamiltonian parameters under temperature and high hydrostatic pressure by X-band continuous wave electron paramagnetic resonance in the K3H(SO4)(2) crystal were studied. Spin-Hamiltonian parameters, direction cosines and coordination of Mn2+ ion were determined at room temperature. The pressure at 300 MPa leads to the change of hydrogen bond potential and the transition from double well to single well potential moves about 10 K towards a higher temperature.
引用
收藏
页码:569 / 575
页数:7
相关论文
共 20 条
[1]  
BARANOV AI, 1987, KRISTALLOGRAFIYA+, V32, P682
[2]   Influence of NH4-Rb substitution on the phase transitions with different kinds of proton disorder in mixed [(NH4)1-xRbx]3H(SO4)2 crystals [J].
Baranov, AI ;
Dolbinina, VV ;
Yakushkin, ED ;
Vinnichenko, VY ;
Schmidt, VH ;
Lanceros-Mendez, S .
FERROELECTRICS, 1998, 217 (1-4) :285-295
[3]  
BARANOV AI, 2003, KRISTALLOGRAFIYA, V48, P1081
[4]   High-performance solid acid fuel cells through humidity stabilization [J].
Boysen, DA ;
Uda, T ;
Chisholm, CRI ;
Haile, SM .
SCIENCE, 2004, 303 (5654) :68-70
[5]   High-temperature phase transitions in K3H(SO4)2 [J].
Chisholm, CRI ;
Haile, SM .
SOLID STATE IONICS, 2001, 145 (1-4) :179-184
[6]   Solid acids as fuel cell electrolytes [J].
Haile, SM ;
Boysen, DA ;
Chisholm, CRI ;
Merle, RB .
NATURE, 2001, 410 (6831) :910-913
[7]  
HRABANSKI R, 1980, THESIS POZNAN
[8]   THEORETICAL ASPECTS OF SOLID HYDROGEN HALIDES UNDER PRESSURE [J].
JANSEN, RW ;
BERTONCINI, R ;
PINNICK, DA ;
KATZ, AI ;
HANSON, RC ;
SANKEY, OF ;
OKEEFFE, M .
PHYSICAL REVIEW B, 1987, 35 (18) :9830-9846
[9]   Corundum-filled resonator systems for high-pressure and low-temperature electron paramagnetic resonance studies [J].
Krupski, M .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1996, 67 (08) :2894-2898
[10]   Superprotonic and ferroelastic phase transition in K3H(SO4)2 [J].
Matsuo, Y ;
Hatori, J ;
Nakashima, Y ;
Ikehata, S .
SOLID STATE COMMUNICATIONS, 2004, 130 (3-4) :269-274