Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas
Highlights We reveal that the nature of the hydrogen bonding networks formed by surface hydroxyl groups plays a key role in the deactivation mechanisms of supported polyethylenimine (PEI), which exhibits contrasting oxidative and anti-urea properties when supported on Al–OH- and Si–OH-containing sub...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-02-01
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| Series: | Nano-Micro Letters |
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| Online Access: | https://doi.org/10.1007/s40820-025-01664-w |
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| author | Meng Zhao Liang Huang Yanshan Gao Ziling Wang Shuyu Liang Xuancan Zhu Qiang Wang Hong He Dermot O’Hare |
| author_facet | Meng Zhao Liang Huang Yanshan Gao Ziling Wang Shuyu Liang Xuancan Zhu Qiang Wang Hong He Dermot O’Hare |
| author_sort | Meng Zhao |
| collection | DOAJ |
| description | Highlights We reveal that the nature of the hydrogen bonding networks formed by surface hydroxyl groups plays a key role in the deactivation mechanisms of supported polyethylenimine (PEI), which exhibits contrasting oxidative and anti-urea properties when supported on Al–OH- and Si–OH-containing substrates. PEG modification helps reduce urea formation for PEI supported on Si–OH-containing substrates, but does not prevent oxidation of the Al–OH-containing support. The resulted ultra-stable 40PEI-20PEG-SBA-15 showing outstanding stability over 1000 adsorption–desorption cycles (2.45 mmol g−1) and negligible capacity loss after one month in simulated flue gas. |
| format | Article |
| id | doaj-art-1ac58cef3bc149ba95b89c6d460669c4 |
| institution | Kabale University |
| issn | 2311-6706 2150-5551 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj-art-1ac58cef3bc149ba95b89c6d460669c42025-08-20T03:46:19ZengSpringerOpenNano-Micro Letters2311-67062150-55512025-02-0117111910.1007/s40820-025-01664-wDesign of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue GasMeng Zhao0Liang Huang1Yanshan Gao2Ziling Wang3Shuyu Liang4Xuancan Zhu5Qiang Wang6Hong He7Dermot O’Hare8College of Environmental Science and Engineering, Beijing Forestry UniversityCollege of Environmental Science and Engineering, Beijing Forestry UniversityCollege of Environmental Science and Engineering, Beijing Forestry UniversityCollege of Environmental Science and Engineering, Beijing Forestry UniversityCollege of Environmental Science and Engineering, Beijing Forestry UniversityResearch Center of Solar Power and Refrigeration, Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong UniversityCollege of Environmental Science and Engineering, Beijing Forestry UniversityState Key Joint Laboratory of Environment Simulation and Pollution Control, Research Centre for Eco-Environmental Sciences, Chinese Academy of SciencesChemistry Research Laboratory, Department of Chemistry, University of OxfordHighlights We reveal that the nature of the hydrogen bonding networks formed by surface hydroxyl groups plays a key role in the deactivation mechanisms of supported polyethylenimine (PEI), which exhibits contrasting oxidative and anti-urea properties when supported on Al–OH- and Si–OH-containing substrates. PEG modification helps reduce urea formation for PEI supported on Si–OH-containing substrates, but does not prevent oxidation of the Al–OH-containing support. The resulted ultra-stable 40PEI-20PEG-SBA-15 showing outstanding stability over 1000 adsorption–desorption cycles (2.45 mmol g−1) and negligible capacity loss after one month in simulated flue gas.https://doi.org/10.1007/s40820-025-01664-wCO2 captureSolid amine adsorbentLong-term stabilityOxidative degradationUrea formation |
| spellingShingle | Meng Zhao Liang Huang Yanshan Gao Ziling Wang Shuyu Liang Xuancan Zhu Qiang Wang Hong He Dermot O’Hare Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas Nano-Micro Letters CO2 capture Solid amine adsorbent Long-term stability Oxidative degradation Urea formation |
| title | Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas |
| title_full | Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas |
| title_fullStr | Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas |
| title_full_unstemmed | Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas |
| title_short | Design of Ultra-Stable Solid Amine Adsorbents and Mechanisms of Hydroxyl Group-Dependent Deactivation for Reversible CO2 Capture from Flue Gas |
| title_sort | design of ultra stable solid amine adsorbents and mechanisms of hydroxyl group dependent deactivation for reversible co2 capture from flue gas |
| topic | CO2 capture Solid amine adsorbent Long-term stability Oxidative degradation Urea formation |
| url | https://doi.org/10.1007/s40820-025-01664-w |
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