Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface
Abstract The role of membrane technology is growing in mitigation of global warming via direct capture of CO2 from the atmosphere (DAC). Yet achieving both high permeability and selectivity remains challenging. In this study, the development of free‐standing, nanometer‐thick membranes is presented t...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-08-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202500244 |
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| author | Miho Ariyoshi Shigenori Fujikawa Toyoki Kunitake |
| author_facet | Miho Ariyoshi Shigenori Fujikawa Toyoki Kunitake |
| author_sort | Miho Ariyoshi |
| collection | DOAJ |
| description | Abstract The role of membrane technology is growing in mitigation of global warming via direct capture of CO2 from the atmosphere (DAC). Yet achieving both high permeability and selectivity remains challenging. In this study, the development of free‐standing, nanometer‐thick membranes is presented that are composed of layers of poly(dimethylsiloxane) (PDMS) and poly(ethylene glycol) (PEG). These nanomembranes are prepared by sequential spin coating of the precursor polymer solution and the subsequent radical cross‐linking. Addition of carbon nanotube or cellulose nanofiber enhanced physical stability of the nanomembrane. One of those nanomembranes exhibited record‐breaking CO2 permeability (>10 000 GPU) and CO2/N2 selectivity (>50) at ambient conditions. This gas permeation is a kinetic process, and interface‐ controlled. This study offers a new design paradigm for highly efficient CO2 separation. |
| format | Article |
| id | doaj-art-c30a00aa29c34fd4af1008024accd936 |
| institution | Kabale University |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj-art-c30a00aa29c34fd4af1008024accd9362025-08-25T08:06:18ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-08-011216n/an/a10.1002/admi.202500244Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer InterfaceMiho Ariyoshi0Shigenori Fujikawa1Toyoki Kunitake2NanoMembrane Technologies Inc., 4‐1 Kyudai‐Shinmachi, Nishi‐ku Fukuoka 819‐0388 JapanNanoMembrane Technologies Inc., 4‐1 Kyudai‐Shinmachi, Nishi‐ku Fukuoka 819‐0388 JapanNanoMembrane Technologies Inc., 4‐1 Kyudai‐Shinmachi, Nishi‐ku Fukuoka 819‐0388 JapanAbstract The role of membrane technology is growing in mitigation of global warming via direct capture of CO2 from the atmosphere (DAC). Yet achieving both high permeability and selectivity remains challenging. In this study, the development of free‐standing, nanometer‐thick membranes is presented that are composed of layers of poly(dimethylsiloxane) (PDMS) and poly(ethylene glycol) (PEG). These nanomembranes are prepared by sequential spin coating of the precursor polymer solution and the subsequent radical cross‐linking. Addition of carbon nanotube or cellulose nanofiber enhanced physical stability of the nanomembrane. One of those nanomembranes exhibited record‐breaking CO2 permeability (>10 000 GPU) and CO2/N2 selectivity (>50) at ambient conditions. This gas permeation is a kinetic process, and interface‐ controlled. This study offers a new design paradigm for highly efficient CO2 separation.https://doi.org/10.1002/admi.202500244CO2 capturehighly efficient permselectionnanomembranepoly(dimethylsiloxane)poly(ethylene glycol) |
| spellingShingle | Miho Ariyoshi Shigenori Fujikawa Toyoki Kunitake Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface Advanced Materials Interfaces CO2 capture highly efficient permselection nanomembrane poly(dimethylsiloxane) poly(ethylene glycol) |
| title | Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface |
| title_full | Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface |
| title_fullStr | Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface |
| title_full_unstemmed | Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface |
| title_short | Design of Highly Efficient Nanomembranes Toward Direct Air Capture. Essential Role of Nanolayer Interface |
| title_sort | design of highly efficient nanomembranes toward direct air capture essential role of nanolayer interface |
| topic | CO2 capture highly efficient permselection nanomembrane poly(dimethylsiloxane) poly(ethylene glycol) |
| url | https://doi.org/10.1002/admi.202500244 |
| work_keys_str_mv | AT mihoariyoshi designofhighlyefficientnanomembranestowarddirectaircaptureessentialroleofnanolayerinterface AT shigenorifujikawa designofhighlyefficientnanomembranestowarddirectaircaptureessentialroleofnanolayerinterface AT toyokikunitake designofhighlyefficientnanomembranestowarddirectaircaptureessentialroleofnanolayerinterface |