About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
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Energy Technologies and CO2 Management: Resource Efficient Processes
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| Presentation Title |
Zinc coordination-driven electrochemical CO2 capture in amino acid-based absorbents: absorption performance, desorption efficiency, and electrochemical behavior |
| Author(s) |
Pengfei Zhao, Wang Changhong, Li Shuai, Liu Hong, Chen Yongming |
| On-Site Speaker (Planned) |
|
| Abstract Scope |
Electrochemical carbon capture provides a promising route to reduce the high thermal‑energy penalty of conventional amine‑based CO2 regeneration. In this work, five aqueous amino‑acid‑based absorbents including glycine, sarcosine, glycylglycine and aspartate were evaluated for zinc coordination-driven electrochemical CO2 capture. The CO2 absorption kinetics and capacity, Zn2+‑triggered CO2 desorption performance, as well as electrochemical redox behaviours of different absorbent systems were investigated. The results show that glycine exhibits excellent CO₂ absorption capacity, outstanding Znē⁺-driven CO₂ desorption performance, and good electrochemical compatibility with zinc redox reactions. This work establishes a comprehensive multi-dimensional evaluation framework for candidate absorbents and offers experimental evidence to support the development of electrochemically controlled CO₂ capture–regeneration cycles. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electrometallurgy, Hydrometallurgy, Recycling and Secondary Recovery |