A new technology for CO2 capture, utilization, and storage has attracted broad attention in the context of global concern about climate change and greenhouse gas control. Due to their ultralow vapor pressure and environmentally friendly features, ionic liquids are considered a new type of CO2 ads
Due to their ultralow vapor pressure and environmentally friendly features, ionic liquids are considered a new type of CORecently, a scientists found that two-dimensional ionic liquids show a completely different melting behavior than the bulk phase, leading to a high COadsorption-desorption process. The research group was led by Profs Suojiang Zhang and Hongyan He from the Institute of Process Engineering of the Chinese Academy of Sciences .
“Anions and cations are arranged together in a checkerboard manner, thus forming a two-dimensional, ordered Z-bond network. This makes it more likely for the multi-step melting behaviors such as ionic rotation and flip,” said Prof. He. The massive molecular dynamics simulation indicates that the two-dimensional ionic liquids show excellent performance for COadsorbed by two-dimensional [Mmim]PFwas improved by at least one order of magnitude compared with the corresponding bulk ionic liquids.adsorption capability suggests that such two-dimensional ionic liquids could serve as functional layers of the catalyst to enhance the mass transfer process of CO,” said Associate Professor Yanlei Wang of IPE.
This two-dimensional editing technique for ionic liquids is expected to provide a new method for the precise control and functional design of liquids, which is promising for various chemical engineering applications involving solvents, electrolytes, and liquid catalysts. Reference: “Two-dimensional ionic liquids with an anomalous stepwise melting process and ultrahigh COadsorption capacity” by Yanlei Wang, Yumiao Lu, Chenlu Wang, Yaqin Zhang, Feng Huo, Hongyan He and Suojiang Zhang, 12 July 2022,
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