Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage
The significance of energy storage should not be underestimated in enabling the growth of renewables on the path towards decarbonisation. In this research, a novel ultra-high temperature reactive carbonate composite, 2BaCO3:TiO2, is introduced. Upon heating, the composite initially forms a mixture o...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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2024
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| Online Access: | http://purl.org/au-research/grants/arc/DP200102301 http://hdl.handle.net/20.500.11937/94791 |
| _version_ | 1848765924811735040 |
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| author | Williamson, Kyran D'Angelo, A.M. Humphries, Terry Paskevicius, Mark Buckley, C.E. |
| author_facet | Williamson, Kyran D'Angelo, A.M. Humphries, Terry Paskevicius, Mark Buckley, C.E. |
| author_sort | Williamson, Kyran |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The significance of energy storage should not be underestimated in enabling the growth of renewables on the path towards decarbonisation. In this research, a novel ultra-high temperature reactive carbonate composite, 2BaCO3:TiO2, is introduced. Upon heating, the composite initially forms a mixture of BaCO3:BaTiO3, which on further heating reacts to form Ba2TiO4 and CO2 in a reversible thermochemical reaction. The enthalpy and entropy of the carbonation reaction involving Ba2TiO4 were determined manometrically to be ∆H = 295 ± 9 kJ∙mol−1 of CO2 and ∆S = 214 ± 7 J∙K−1∙mol−1 of CO2, respectively. The CO2 cycling capacity of the composite was evaluated using a Sieverts apparatus and thermogravimetric analysis, and sintering was identified as a potential cause of capacity loss. The addition of nickel was employed to mitigate the effect of sintering, resulting in a stable reversible capacity of up to 50 % of the theoretical maximum. The composite's cyclic capacity retention, low cost, and high energy storage density make it a promising candidate for energy storage applications at ≈ 1100 °C, although improvement to the cyclic capacity would lead to a more favourable application potential. |
| first_indexed | 2025-11-14T11:42:59Z |
| format | Journal Article |
| id | curtin-20.500.11937-94791 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:42:59Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-947912024-05-24T06:22:06Z Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage Williamson, Kyran D'Angelo, A.M. Humphries, Terry Paskevicius, Mark Buckley, C.E. The significance of energy storage should not be underestimated in enabling the growth of renewables on the path towards decarbonisation. In this research, a novel ultra-high temperature reactive carbonate composite, 2BaCO3:TiO2, is introduced. Upon heating, the composite initially forms a mixture of BaCO3:BaTiO3, which on further heating reacts to form Ba2TiO4 and CO2 in a reversible thermochemical reaction. The enthalpy and entropy of the carbonation reaction involving Ba2TiO4 were determined manometrically to be ∆H = 295 ± 9 kJ∙mol−1 of CO2 and ∆S = 214 ± 7 J∙K−1∙mol−1 of CO2, respectively. The CO2 cycling capacity of the composite was evaluated using a Sieverts apparatus and thermogravimetric analysis, and sintering was identified as a potential cause of capacity loss. The addition of nickel was employed to mitigate the effect of sintering, resulting in a stable reversible capacity of up to 50 % of the theoretical maximum. The composite's cyclic capacity retention, low cost, and high energy storage density make it a promising candidate for energy storage applications at ≈ 1100 °C, although improvement to the cyclic capacity would lead to a more favourable application potential. 2024 Journal Article http://hdl.handle.net/20.500.11937/94791 10.1016/j.est.2024.111196 http://purl.org/au-research/grants/arc/DP200102301 http://purl.org/au-research/grants/arc/LE0775553 http://purl.org/au-research/grants/arc/LE0775551 http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Williamson, Kyran D'Angelo, A.M. Humphries, Terry Paskevicius, Mark Buckley, C.E. Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title | Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title_full | Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title_fullStr | Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title_full_unstemmed | Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title_short | Barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| title_sort | barium carbonate and barium titanate for ultra-high temperature thermochemical energy storage |
| url | http://purl.org/au-research/grants/arc/DP200102301 http://purl.org/au-research/grants/arc/DP200102301 http://purl.org/au-research/grants/arc/DP200102301 http://hdl.handle.net/20.500.11937/94791 |