Internet Archive Scholar

Synthesis, structure and properties of solid solutions Ва1–хSn1+хF4 and (KyВа1–y)(1–х)Sn1+хF4–y(1–х)

R.M. Pshenychnyi, Sumy State University, T.V. Pavlenko, Yu.V. Pohorenko, A.O. Omel'chuk, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine
2021 Voprosy himii i himičeskoj tehnologii  

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (1.2 MB)
https://web.archive.org/web/20210130144701/http://udhtu.edu.ua/public/userfiles/file/VHHT/2021/1/Pshenychnyi.pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL. The file type is application/pdf.

We investigated the structure and electric conductivity of solid solutions of homovalent substitution Ва1–хSn1+хF4 (where х=0.03, 0.05, 0.07, 0.10, 0.15 and 0.23) and heterovalent substitution (KyВа1–y)(1–х)Sn1+хF4–y(1–х) (where х=0.03, 0.05, 0.10 and у=0.03, 0.05, 0.10) with the structure of BaSnF4. It was been found that the substitution of 7 mol.% of Ba2+ cations by Sn2+ cations contributed to an increases in electrical conductivity. The solid solution Ba0.77Sn1.23F4 had the highest
more » ... l conductivity (573=6.8010–3 S cm–1). The substitution of barium ions by potassium ions in the BaSnF4 crystal lattice allowed reducing the conductivity of solid solutions regardless of the substituent content. Only the phases containing more than 3 mol.% of K+ ions exhibited the conductivity which exceeded the value of the initial phase at the temperatures above 385 K. In fluoride-conducting phases (KyBa1–y)(1–x)Sn1+xF4–y(1–х), the following solid solutions showed the highest electrical conductivity: (K0.05Ba0.95)0.97Sn1.03F3.95 (573=6.7810–4 S сm–1), (K0.03Ba0.97)0.95Sn1.05F3.97 (573=1.0010–3 S сm–1) and (K0.10Ba0.90)0.90Sn1.10F3.91 (573=8.7010–3 S сm–1).
doi:10.32434/0321-4095-2021-134-1-62-70 fatcat:i44cixkizrcjtpb44a54rszmvm
Open Access
Citation

R.M. Pshenychnyi, Sumy State University, T.V. Pavlenko, Yu.V. Pohorenko, A.O. Omel'chuk, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine, V.I. Vernadsky Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine. "Synthesis, structure and properties of solid solutions Ва1–хSn1+хF4 and (KyВа1–y)(1–х)Sn1+хF4–y(1–х)." Voprosy himii i himičeskoj tehnologii (2021) 62-70