“Wiggling Mesopores Kinetically Amplified Adsorptive Separation of Propylene/Propane”
被 Angewandte Chemie International Edition 接受发表！
Ya-Fei Yuan+, Yong-Sheng Wang+, Xue-Liang Zhang, Wen-Cui Li, Guang-Ping Hao*, Lu Han*, and An-Hui Lu*, Wiggling Mesopores Kinetically Amplified Adsorptive Separation of Propylene/Propane. Angewandte Chemie International Edition, 2021, 60, 1-6.DOI:10.1002/anie.202106523.[DOWNLOAD]
Adsorptive separation is an appealing technology for propylene and propane separation; however, the challenge lies in the design of efficient adsorbents which can distinguish the two molecules having very similar properties. Here we report a kinetically amplified separation by creating wiggling mesopores in structurally robust carbon monoliths. The wiggling mesopores with alternating wide and narrow segments afford a surface area of 413 m2 g-1 and a tri-modal pore size distribution centered at 1.5, 4.2 and 6.6 nm, respectively. The synergistically kinetic and equilibrium effects were observed and quantitatively assessed, which together ensured a remarkable propylene/propane selectivity up to 39. This selectivity outperformed not only the available carbon adsorbents but also highly competitive among the dominated crystalline porous adsorbents.