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Published on: December 23, 2014
Cation-regulated rigid and soft crystalline porous frameworks for CO2 sieving and C3H6/C3H8 separation
Youlie Cai1,2,3, Xiaoyan Xiao4, Rajamani Krishna5
1China-Uzbekistan Joint Laboratory on Advanced Porous Materials, State Key Laboratory of Bio-based Fiber Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, 310018 Hangzhou, China. jkgao@zstu.edu.cn.
None:
Through cation-directed assembly, a single organic linker yields both rigid and soft crystalline porous frameworks (CPFs). The rigid ammonium-CPF enables strict CO2 sieving, while the flexible potassium-CPF exhibits gate-opening for efficient C3H6/C3H8 separation. This work establishes ionic modulation as a design paradigm for programming porous crystals between rigid sieving and adaptive gate-opening.

