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High Electronically Conductive Tungsten Phosphate Glass-Ceramics

Ruđer Bošković Institute, 10000 Zagreb, Croatia
Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, 53210 Pardubice, Czech Republic
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(12), 2515;
Received: 19 November 2020 / Revised: 11 December 2020 / Accepted: 12 December 2020 / Published: 15 December 2020
High electronically conductive tungsten phosphate glass-ceramics have been prepared by the controlled crystallization of binary 60WO3–40P2O5 glass in the temperature range from 700 to 935 °C and for 1 to 24 h. The substantial increase in the conductivity for four orders of magnitude is a result of the formation of electronically conductive W2O3(PO4)2 and WO3 phases. At low crystallization temperature the dominant W2O3(PO4)2 phase is created, whereas at 935 °C for 24 h the formation of semiconducting WO3 crystallites of an average size of 80 nm enhances the conductivity to the highest value of 1.64 × 10−4 (Ω cm)–1 at 30 °C. The course of the crystallization and its impact on this exceptionally high electronic transport of binary tungsten phosphate glass-ceramics has been discussed in detail. Since such highly electronically conductive WO3-based glass-ceramics have a great potential as cathode/anode materials in solid state batteries and as electrocatalysts in fuel cells, it is of interest to provide a novel insight into the improvement of their electrical properties. View Full-Text
Keywords: binary tungsten phosphate glass-ceramics; crystallization; electronic transport; W2O3(PO4)2 phase; semiconducting WO3 phase binary tungsten phosphate glass-ceramics; crystallization; electronic transport; W2O3(PO4)2 phase; semiconducting WO3 phase
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MDPI and ACS Style

Renka, S.; Klaser, T.; Burazer, S.; Mošner, P.; Kalenda, P.; Šantić, A.; Moguš-Milanković, A. High Electronically Conductive Tungsten Phosphate Glass-Ceramics. Nanomaterials 2020, 10, 2515.

AMA Style

Renka S, Klaser T, Burazer S, Mošner P, Kalenda P, Šantić A, Moguš-Milanković A. High Electronically Conductive Tungsten Phosphate Glass-Ceramics. Nanomaterials. 2020; 10(12):2515.

Chicago/Turabian Style

Renka, Sanja, Teodoro Klaser, Sanja Burazer, Petr Mošner, Petr Kalenda, Ana Šantić, and Andrea Moguš-Milanković. 2020. "High Electronically Conductive Tungsten Phosphate Glass-Ceramics" Nanomaterials 10, no. 12: 2515.

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