Ti3C2Tx MXene-Based Three-Dimensional Architecture for Carbon Dioxide …
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논문명 | Ti3C2Tx MXene-Based Three-Dimensional Architecture for Carbon Dioxide Capture |
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저자 | Kwang Hyun Park, Seulgi Kim, Hyewon Hwang, Min-Jin Hwang, Sung Ho Song, Wang-Geun Shim and Dongju Lee |
저널명 | Journal of Nanoscience and Nanotechnology |
게재년월 | 2021/3/16 |
Vol. pp | Vol. 21, 4902–4907 |
Dramatic increases in fossil fuel consumption inevitably led to the emission of huge amounts of
CO2 gas, causing abnormalities in the climate system. Despite continuous efforts to resolve global
atmospheric problems through CO2 capture and separation, success has been limited by poor CO2
selectivity in the CO2/N2 mixture. Herein, we demonstrate the fabrication of a three-dimensional
(3D) nanostructure from two-dimensional transition metal carbides (Ti3C2Tx, MXene), and assess
its utility as an adsorbent in a CO2 capture system. Through structural and textural analysis, we
confirm that the as-prepared MXene possesses high size uniformity with a thickness of ∼2.5 nm,
and that an MXene aerogel interconnected by MXene nanosheets has a 3D porous architecture with
micro/nano porosity (Barrett–Joyner–Halenda (BJH) pore size = 11.4 nm). Moreover, the MXene
aerogel exhibits favorable adsorption behavior for CO2, due to the high-quality MXene nanosheets
even with a low specific surface area. Our approach could lead to significant advances in CO2
capture by adsorbents and open up new opportunities for mass production.