Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study
The temperature-dependent energy storage properties of four tungsten bronze-type ceramics are studied together with an investigation of their structure and temperature-dependent permittivity response, i.e., Ba<sub>6</sub>Ti<sub>2</sub>Nb<sub>8</sub>O<sub>30&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/7/1073 |
| _version_ | 1797589707838717952 |
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| author | Xi Shi Neamul H. Khansur |
| author_facet | Xi Shi Neamul H. Khansur |
| author_sort | Xi Shi |
| collection | DOAJ |
| description | The temperature-dependent energy storage properties of four tungsten bronze-type ceramics are studied together with an investigation of their structure and temperature-dependent permittivity response, i.e., Ba<sub>6</sub>Ti<sub>2</sub>Nb<sub>8</sub>O<sub>30</sub> (BTN), Ba<sub>6</sub>Zr<sub>2</sub>Nb<sub>8</sub>O<sub>30</sub> (BZN), Sr<sub>3</sub>TiNb<sub>4</sub>O<sub>15</sub> (STN) and Sr<sub>3</sub>ZrNb<sub>4</sub>O<sub>15</sub> (SZN) ceramics. With different cations at A and B sites, those four ceramics exhibit different crystal structures and show significantly different microstructure features and dielectric responses with changing temperatures. It was observed under SEM that BZN has smaller grains and a more porous structure than BTN. SZN shows 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, they exhibit good temperature stability together with low dielectric loss. 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. |
| first_indexed | 2024-03-11T01:10:23Z |
| format | Article |
| id | doaj.art-17ec1ac21dc84d48aa870a973f4a5a65 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T01:10:23Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-17ec1ac21dc84d48aa870a973f4a5a652023-11-18T18:54:04ZengMDPI AGCrystals2073-43522023-07-01137107310.3390/cryst13071073Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility StudyXi Shi0Neamul H. Khansur1Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), 91058 Erlangen, GermanyDepartment of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), 91058 Erlangen, GermanyThe temperature-dependent energy storage properties of four tungsten bronze-type ceramics are studied together with an investigation of their structure and temperature-dependent permittivity response, i.e., Ba<sub>6</sub>Ti<sub>2</sub>Nb<sub>8</sub>O<sub>30</sub> (BTN), Ba<sub>6</sub>Zr<sub>2</sub>Nb<sub>8</sub>O<sub>30</sub> (BZN), Sr<sub>3</sub>TiNb<sub>4</sub>O<sub>15</sub> (STN) and Sr<sub>3</sub>ZrNb<sub>4</sub>O<sub>15</sub> (SZN) ceramics. With different cations at A and B sites, those four ceramics exhibit different crystal structures and show significantly different microstructure features and dielectric responses with changing temperatures. It was observed under SEM that BZN has smaller grains and a more porous structure than BTN. SZN shows 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, they exhibit good temperature stability together with low dielectric loss. 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.https://www.mdpi.com/2073-4352/13/7/1073energy storage propertiestungsten bronze-type ceramicsporous ceramics |
| spellingShingle | Xi Shi Neamul H. Khansur Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study Crystals energy storage properties tungsten bronze-type ceramics porous ceramics |
| title | Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study |
| title_full | Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study |
| title_fullStr | Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study |
| title_full_unstemmed | Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study |
| title_short | Tungsten Bronze-Type Ceramics for Temperature-Stable Energy Storage Properties: A Feasibility Study |
| title_sort | tungsten bronze type ceramics for temperature stable energy storage properties a feasibility study |
| topic | energy storage properties tungsten bronze-type ceramics porous ceramics |
| url | https://www.mdpi.com/2073-4352/13/7/1073 |
| work_keys_str_mv | AT xishi tungstenbronzetypeceramicsfortemperaturestableenergystoragepropertiesafeasibilitystudy AT neamulhkhansur tungstenbronzetypeceramicsfortemperaturestableenergystoragepropertiesafeasibilitystudy |