Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation
Abstract Selective ion transport underpins fundamental biological processes for efficient energy conversion and signal propagation. Mimicking these ‘ionics’ in synthetic nanofluidic channels has been increasingly promising for realizing self-sustained systems by harvesting clean energy from diverse...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-47040-x |
| _version_ | 1797233435956215808 |
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| author | Zhuyuan Wang Ting Hu Mike Tebyetekerwa Xiangkang Zeng Fan Du Yuan Kang Xuefeng Li Hao Zhang Huanting Wang Xiwang Zhang |
| author_facet | Zhuyuan Wang Ting Hu Mike Tebyetekerwa Xiangkang Zeng Fan Du Yuan Kang Xuefeng Li Hao Zhang Huanting Wang Xiwang Zhang |
| author_sort | Zhuyuan Wang |
| collection | DOAJ |
| description | Abstract Selective ion transport underpins fundamental biological processes for efficient energy conversion and signal propagation. Mimicking these ‘ionics’ in synthetic nanofluidic channels has been increasingly promising for realizing self-sustained systems by harvesting clean energy from diverse environments, such as light, moisture, salinity gradient, etc. Here, we report a spatially nanoconfined ion separation strategy that enables harvesting electricity from CO2 adsorption. This breakthrough relies on the development of Nanosheet-Agarose Hydrogel (NAH) composite-based generators, wherein the oppositely charged ions are released in water-filled hydrogel channels upon adsorbing CO2. By tuning the ion size and ion-channel interactions, the released cations at the hundred-nanometer scale are spatially confined within the hydrogel network, while ångström-scale anions pass through unhindered. This leads to near-perfect anion/cation separation across the generator with a selectivity (D-/D+) of up to 1.8 × 106, allowing conversion into external electricity. With amplification by connecting multiple as-designed generators, the ion separation-induced electricity reaching 5 V is used to power electronic devices. This study introduces an effective spatial nanoconfinement strategy for widely demanded high-precision ion separation, encouraging a carbon-negative technique with simultaneous CO2 adsorption and energy generation. |
| first_indexed | 2024-04-24T16:16:08Z |
| format | Article |
| id | doaj.art-0a9bfea9db684e47bfb0db80d5fe3beb |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-24T16:16:08Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-0a9bfea9db684e47bfb0db80d5fe3beb2024-03-31T11:25:40ZengNature PortfolioNature Communications2041-17232024-03-011511910.1038/s41467-024-47040-xElectricity generation from carbon dioxide adsorption by spatially nanoconfined ion separationZhuyuan Wang0Ting Hu1Mike Tebyetekerwa2Xiangkang Zeng3Fan Du4Yuan Kang5Xuefeng Li6Hao Zhang7Huanting Wang8Xiwang Zhang9UQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandDepartment of Chemical and Biological Engineering, Monash UniversityUQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandUQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandDepartment of Chemical and Biological Engineering, Monash UniversityDepartment of Chemical and Biological Engineering, Monash UniversityUQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandUQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandDepartment of Chemical and Biological Engineering, Monash UniversityUQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of QueenslandAbstract Selective ion transport underpins fundamental biological processes for efficient energy conversion and signal propagation. Mimicking these ‘ionics’ in synthetic nanofluidic channels has been increasingly promising for realizing self-sustained systems by harvesting clean energy from diverse environments, such as light, moisture, salinity gradient, etc. Here, we report a spatially nanoconfined ion separation strategy that enables harvesting electricity from CO2 adsorption. This breakthrough relies on the development of Nanosheet-Agarose Hydrogel (NAH) composite-based generators, wherein the oppositely charged ions are released in water-filled hydrogel channels upon adsorbing CO2. By tuning the ion size and ion-channel interactions, the released cations at the hundred-nanometer scale are spatially confined within the hydrogel network, while ångström-scale anions pass through unhindered. This leads to near-perfect anion/cation separation across the generator with a selectivity (D-/D+) of up to 1.8 × 106, allowing conversion into external electricity. With amplification by connecting multiple as-designed generators, the ion separation-induced electricity reaching 5 V is used to power electronic devices. This study introduces an effective spatial nanoconfinement strategy for widely demanded high-precision ion separation, encouraging a carbon-negative technique with simultaneous CO2 adsorption and energy generation.https://doi.org/10.1038/s41467-024-47040-x |
| spellingShingle | Zhuyuan Wang Ting Hu Mike Tebyetekerwa Xiangkang Zeng Fan Du Yuan Kang Xuefeng Li Hao Zhang Huanting Wang Xiwang Zhang Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation Nature Communications |
| title | Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| title_full | Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| title_fullStr | Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| title_full_unstemmed | Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| title_short | Electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| title_sort | electricity generation from carbon dioxide adsorption by spatially nanoconfined ion separation |
| url | https://doi.org/10.1038/s41467-024-47040-x |
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