Zinātniskās darbības atbalsta sistēma
Latviešu English

Publikācija: Preparation and Characterization of Solid Electrolytes based on TiP2O7 Pyrophosphate

Publikācijas veids Zinātniskais raksts, kas indeksēts Web of science un/vai Scopus datu bāzē
Pamatdarbībai piesaistītais finansējums Nav zināms
Aizstāvēšana: ,
Publikācijas valoda English (en)
Nosaukums oriģinālvalodā Preparation and Characterization of Solid Electrolytes based on TiP2O7 Pyrophosphate
Pētniecības nozare 1. Dabaszinātnes
Pētniecības apakšnozare 1.4. Ķīmija
Autori Vilma Venckute
P. Dobrovolskis
Tomas Šalkus
Algirdas Kežionis
Antonija Dindune
Zaiga Kaņepe
Jānis Ronis
K.-Z. Fung
Antanas Orliukas
Atslēgas vārdi Ceramics; ionic transport; impedance spectroscopy; X-ray diffraction
Anotācija The powders of Li4xTi1-xP2O7 (x D 0, 0.06, 0.1, 0.2) pyrophosphates have been succesfully synthesized by solid state reaction. The powder XRD analysis has proved, that Li4xTi1-xP2O7 (x= 0, 0.06, 0.1, 0.2) crystallize in cubic 3 £ 3 £ 3 superstructure (space group Pa 3). The partial substitution of Ti4+ by Li+ in the Li4xTi1-xP2O7 system leads to the conductivity increase. The deviation from Arrhenius law in total conductivities has been found in the temperature range from 520 to 580 K. The changes of the activation energy can be related to disordering in the supercells of the investigated compounds. The above mentioned titanium to lithium substitution also increased the values of the static dielectric permittivity of TiP2O7 is almost temperature independent, while for Li4xTi1-xP2O7 with x = 0.06, 0.1, 0.2 it is increasing with temperature, this increase is due to the additional lithium migration polarization.
DOI: 10.1080/00150193.2015.1012026
Hipersaite: http://www.tandfonline.com/doi/full/10.1080/00150193.2015.1012026 
Atsauce Venckute, V., Dobrovolskis, P., Šalkus, T., Kežionis, A., Dindune, A., Kaņepe, Z., Ronis, J., Fung, K., Orliukas, A. Preparation and Characterization of Solid Electrolytes based on TiP2O7 Pyrophosphate. Ferroelectrics, 2015, Vol.479, Iss.1. Special Issue: Proceedings of the Twelfth European Conference on Applications of Polar Dielectrics (ECAPD-12), 101.-109.lpp. ISSN 0015-0193. e-ISSN 1563-5112. Pieejams: doi:10.1080/00150193.2015.1012026
Papildinformācija Citējamību skaits:
ID 22159