dr inż. Iga Szpunar
Employment
- Assistant professor at Katedra Inżynierii Materiałów Funkcjonalnych WETI
Social media
Contact
- iga.szpunar@pg.edu.pl
Assistant professor
- Katedra Inżynierii Materiałów Funkcjonalnych WETI
- Faculty of Electronics, Telecommunications and Informatics
- Workplace
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Budynek B Elektroniki
room NE 313 open in new tab - Phone
- +48 58 347 18 76
- iga.szpunar@pg.edu.pl
Publication showcase
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Novel Class of Proton Conducting Materials—High Entropy Oxides
Here, for the first time, we present data on proton conductivity of high-entropy, single-phase perovskites. The BaZr0.2Sn0.2Ti0.2Hf0.2Ce0.2O3−δ, BaZr0.2Sn0.2Ti0.2Hf0.2Y0.2O3−δ, BaZr1/7Sn1/7Ti1/7Hf1/7Ce1/7Nb1/7Y1/7O3−δ, and BaZr0.15Sn0.15Ti0.15Hf0.15Ce0.15Nb0.15Y0.10O3−δ single-phase perovskites were synthesized. Before electrical measurements, materials were characterized using X-ray diffraction (XRD), scanning electron microscopy...
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Structure and water uptake in BaLnCo2O6−δ (Ln =La, Pr, Nd, Sm, Gd, Tb and Dy)
The structure of BaLnCo2O6-δ (Ln =La, Pr, Nd, Sm, Gd, Tb and Dy) was studied by the means of synchrotron radiation powder X-ray diffraction, neutron powder diffraction and Transmission Electron Microscopy (TEM), while water uptake properties were analysed with the use of thermogravimetry (TG) and water adsorption isotherms. The structure refinement revealed that the dominant phase in all compositions was orthorhombic with an ordering...
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Praseodymium substituted lanthanum orthoniobate: Electrical and structural properties
The results of ionic transport and structural measurements for the lanthanum orthoniobate doped by praseodymium are presented and discussed. The influence of calcium co-doping on these properties has also been analyzed. The results suggest the predominant protonic conductivity for the investigated system in the whole range of investigated temperatures. The influence of calcium co-doping on phase purity is analyzed.
Obtained scientific degrees/titles
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2023-09-25
Obtained science degree
dr inż. materials engineering (Engineering and Technology)
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