DataVXACS Energy LettersPaper
journal article·2024-07-12

Deriving an Efficient and Stable Microenvironment for a CO2 MEA Electrolyzer by Reverse Osmosis

Jaeyong Park, Eung-Dab Kim, Sangkuk Kim, Chulwan Lim, Hyunchul Kim, Young-Jin Ko, Jae-Young Choi, Hyung-Suk Oh, Woong Hee Lee

ACS Energy Letters· Volume 9· Issue 7
Publisher page
Source abstract

Abstract

In a membrane electrode assembly (MEA) electrolyzer based on a cation-exchange membrane, achieving an efficient and stable CO 2 reduction reaction (CO 2 RR) is challenging because the transport of protons, cations, and electro-osmotic water from the anode changes the balance of ions. Herein, we derived a microenvironment for stable and efficient CO 2 RR performance by using two strategies. First, a mixture of carbon and anion-exchange ionomer buffer layers is used to hold cations while managing water in local alkaline media. The second strategy involves pressurizing only the cathode side, resulting in a high local CO 2 concentration and enhancing the reverse osmosis phenomenon. The synergistic effects of these two strategies create an efficient microenvironment by managing water and cations, leading to a stable and efficient CO 2 RR operation. Our approach of reverse osmosis to balance cations and water is viable for industrial applications because pressurized CO 2 and MEA systems are efficient processes that can be commercialized.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Advanced battery technologies research · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea

Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea

Hydrogen and Low-Carbon Energy R&D Laboratories, POSCO HOLDINGS, 67, Cheongam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37673, Republic of Korea

Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea

Department of Materials Science and Engineering, Korea University, Anamdong-5-Ga, Seoul 02841, Republic of Korea

School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea

KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea

Funding

National Research Council of Science and Technology · National Research Foundation of Korea · Korea Institute of Science and Technology

References (41)

Show source-provided references
1. 10.1016/j.chempr.2018.08.01910.1016/j.chempr.2018.08.019 ↗
2. 10.1002/ange.20210181810.1002/ange.202101818 ↗
3. 10.1038/s41929-019-0306-710.1038/s41929-019-0306-7 ↗
4. 10.1039/D0CS00071J10.1039/D0CS00071J ↗
5. 10.1016/j.nanoen.2023.10837310.1016/j.nanoen.2023.108373 ↗
6. 10.1038/s41560-021-00973-910.1038/s41560-021-00973-9 ↗
7. 10.1038/s41578-021-00356-210.1038/s41578-021-00356-2 ↗
8. 10.1039/D0EE03756G10.1039/D0EE03756G ↗
9. 10.1039/D0CS00230E10.1039/D0CS00230E ↗
10. 10.1016/j.chempr.2021.12.00210.1016/j.chempr.2021.12.002 ↗
11. 10.1021/acs.accounts.1c0061410.1021/acs.accounts.1c00614 ↗
12. 10.1038/s41560-020-00761-x10.1038/s41560-020-00761-x ↗
13. 10.1021/acsami.9b1308110.1021/acsami.9b13081 ↗
14. 10.1021/acsenergylett.2c0229210.1021/acsenergylett.2c02292 ↗
15. 10.1038/s41467-022-31295-310.1038/s41467-022-31295-3 ↗
16. 10.1021/acsenergylett.1c0112210.1021/acsenergylett.1c01122 ↗
17. 10.1016/j.joule.2022.04.02310.1016/j.joule.2022.04.023 ↗
18. 10.1016/j.cej.2022.13982610.1016/j.cej.2022.139826 ↗
19. 10.1016/j.cej.2022.13476510.1016/j.cej.2022.134765 ↗
20. 10.1021/acsenergylett.7b0076410.1021/acsenergylett.7b00764 ↗
21. 10.1246/bcsj.64.12310.1246/bcsj.64.123 ↗
22. 10.1021/jacs.7b0676510.1021/jacs.7b06765 ↗
23. 10.1038/s41467-019-13777-z10.1038/s41467-019-13777-z ↗
24. 10.1038/s41929-021-00655-510.1038/s41929-021-00655-5 ↗
25. 10.1021/jacs.6b0761210.1021/jacs.6b07612 ↗
26. 10.1039/C9EE01341E10.1039/C9EE01341E ↗
27. 10.1039/D2EE03725D10.1039/D2EE03725D ↗
28. 10.1021/acsenergylett.9b0114210.1021/acsenergylett.9b01142 ↗
29. 10.1016/S1003-9953(06)60025-X10.1016/S1003-9953(06)60025-X ↗
30. 10.1002/adsu.20210021610.1002/adsu.202100216 ↗
31. 10.1038/s41598-017-09847-110.1038/s41598-017-09847-1 ↗
32. 10.1016/j.joule.2019.11.01410.1016/j.joule.2019.11.014 ↗
33. 10.1021/jacs.0c0012210.1021/jacs.0c00122 ↗
34. 10.1149/2.011209jes10.1149/2.011209jes ↗
35. 10.1039/C8EE01684D10.1039/C8EE01684D ↗
36. 10.1039/C9EE03077H10.1039/C9EE03077H ↗
37. 10.1126/science.abg658210.1126/science.abg6582 ↗
38. 10.1007/s41918-023-00183-910.1007/s41918-023-00183-9 ↗
39. 10.1038/s41467-023-41348-w10.1038/s41467-023-41348-w ↗
40. 10.1016/j.jpowsour.2021.23087710.1016/j.jpowsour.2021.230877 ↗
41. 10.1007/978-3-662-44324-8_207810.1007/978-3-662-44324-8_2078 ↗