Shi, X.; Khansur, N.H. Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study. Crystals2023, 13, 1073.
Shi, X.; Khansur, N.H. Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study. Crystals 2023, 13, 1073.
Shi, X.; Khansur, N.H. Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study. Crystals2023, 13, 1073.
Shi, X.; Khansur, N.H. Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study. Crystals 2023, 13, 1073.
Abstract
The temperature-dependent energy storage properties of four tungsten bronze phase compounds are studied together with an investigation of their structure and temperature-dependent permittivity response, i.e., Ba6Ti2Nb8O30 (BTN), Ba6Zr2Nb8O30 (BZN), Sr3TiNb4O15 (STN) and Sr3ZrNb4O15 (SZN) ceramics. It was found that BZN has smaller grains and a more porous structure than BTN. SZN shows no clear grain boundaries with the most porous structure among all samples, exhibiting a much lower permittivity response than other samples with no signs of phase transitions from room temperature to 400 °C. Though the energy storage response of those samples is generally quite low, it exhibits rather good temperature stability. It was suggested that by obtaining a denser structure through chemical modification or other methods, those tungsten bronze ceramics with good temperature stability could be promising as energy storage devices when improved energy storage properties are achieved.
Keywords
Energy storage properties; Tungsten bronze phase
Subject
Chemistry and Materials Science, Materials Science and Technology
Copyright:
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