Inexpensive thermochemical energy storage utilising additive enhanced limestone
Energy storage is one of the key challenges in our society to enable a transition to renewable energy sources. The endothermic decomposition of limestone into lime and CO2is one of the most cost-effective energy storage systems but it significantly degrades on repeated energy cycling (to below 10% c...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Language: | English |
| Published: |
ROYAL SOC CHEMISTRY
2020
|
| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FT160100303 http://hdl.handle.net/20.500.11937/91767 |
| _version_ | 1848765586866176000 |
|---|---|
| author | Møller, K.T. Ibrahim, A. Buckley, Craig Paskevicius, Mark |
| author_facet | Møller, K.T. Ibrahim, A. Buckley, Craig Paskevicius, Mark |
| author_sort | Møller, K.T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Energy storage is one of the key challenges in our society to enable a transition to renewable energy sources. The endothermic decomposition of limestone into lime and CO2is one of the most cost-effective energy storage systems but it significantly degrades on repeated energy cycling (to below 10% capacity). This study presents the first CaCO3system operating under physical conditions that mimic a real-life ‘thermal battery’ over an extended cycling life. These important results demonstrate that a thermal energy storage device based on CaCO3will be suitable for a range of applications,e.g.concentrated solar power plants, wind farms, photovoltaics, and excess grid energy. The operating temperature of 900 °C ensures a higher Carnot efficiency than state-of-the-art technologies at a fraction of the material cost. The capacity degradation of pure CaCO3as a function of calcination/carbonation cycling is overcome by the addition of either ZrO2(40 wt%) or Al2O3(20 wt%), which results in 500 energy storage cycles at over 80% capacity. The additives result in the formation of ternary compounds,e.g.CaZrO3and Ca5Al6O14, which restrict sintering and allow for the transmission of Ca2+and O2-ions to reaction sites. |
| first_indexed | 2025-11-14T11:37:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-91767 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:37Z |
| publishDate | 2020 |
| publisher | ROYAL SOC CHEMISTRY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-917672023-06-13T02:33:13Z Inexpensive thermochemical energy storage utilising additive enhanced limestone Møller, K.T. Ibrahim, A. Buckley, Craig Paskevicius, Mark Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science CAO-BASED SORBENTS CO2 CAPTURE BIFUNCTIONAL CATALYST CONDUCTIVITY ALUMINATE CAPACITY BATTERY CARBON CAZRO3 Energy storage is one of the key challenges in our society to enable a transition to renewable energy sources. The endothermic decomposition of limestone into lime and CO2is one of the most cost-effective energy storage systems but it significantly degrades on repeated energy cycling (to below 10% capacity). This study presents the first CaCO3system operating under physical conditions that mimic a real-life ‘thermal battery’ over an extended cycling life. These important results demonstrate that a thermal energy storage device based on CaCO3will be suitable for a range of applications,e.g.concentrated solar power plants, wind farms, photovoltaics, and excess grid energy. The operating temperature of 900 °C ensures a higher Carnot efficiency than state-of-the-art technologies at a fraction of the material cost. The capacity degradation of pure CaCO3as a function of calcination/carbonation cycling is overcome by the addition of either ZrO2(40 wt%) or Al2O3(20 wt%), which results in 500 energy storage cycles at over 80% capacity. The additives result in the formation of ternary compounds,e.g.CaZrO3and Ca5Al6O14, which restrict sintering and allow for the transmission of Ca2+and O2-ions to reaction sites. 2020 Journal Article http://hdl.handle.net/20.500.11937/91767 10.1039/d0ta03080e English http://purl.org/au-research/grants/arc/FT160100303 http://purl.org/au-research/grants/arc/LP150100730 ROYAL SOC CHEMISTRY fulltext |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science CAO-BASED SORBENTS CO2 CAPTURE BIFUNCTIONAL CATALYST CONDUCTIVITY ALUMINATE CAPACITY BATTERY CARBON CAZRO3 Møller, K.T. Ibrahim, A. Buckley, Craig Paskevicius, Mark Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title | Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title_full | Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title_fullStr | Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title_full_unstemmed | Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title_short | Inexpensive thermochemical energy storage utilising additive enhanced limestone |
| title_sort | inexpensive thermochemical energy storage utilising additive enhanced limestone |
| topic | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science CAO-BASED SORBENTS CO2 CAPTURE BIFUNCTIONAL CATALYST CONDUCTIVITY ALUMINATE CAPACITY BATTERY CARBON CAZRO3 |
| url | http://purl.org/au-research/grants/arc/FT160100303 http://purl.org/au-research/grants/arc/FT160100303 http://hdl.handle.net/20.500.11937/91767 |