《Surpassing Robeson Upper Limit for CO2/N2 Separation with Fluorinated Carbon Molecular Sieve Membranes》 was written by Yang, Zhenzhen; Guo, Wei; Mahurin, Shannon Mark; Wang, Song; Chen, Hao; Cheng, Long; Jie, Kecheng; Meyer, Harry M. III; Jiang, De-en; Liu, Gongping; Jin, Wanqin; Popovs, Ilja; Dai, Sheng. Application of 1194-02-1 And the article was included in Chem in 2020. The article conveys some information:
The CO2-philic properties of powd. fluorinated triazine frameworks make them promising candidates for fabrication of porous CO2 separation membranes. This is rarely reported because of lack of suitable synthetic approaches. Here, fluorinated membranes based on covalent triazine frameworks are prepared through a rational design of aromatic nitrile monomers containing fluorine and ether groups via a sol-gel polymerization process. The CO2 separation performance rises significantly with the fluorine content in the membrane. With functionalized triazine units, fluorine, and ether groups, these carbon mol. sieve membranes obtained after pyrolysis exhibit intrinsic ultra-micropores, high surface areas and excellent thermal stability under air. Excellent CO2 permeability and CO2 to N2 selectivity surpassing the Robeson upper bound are achieved. Our general design and synthesis protocol allow an easy access to fluorinated porous membranes, thus significantly expanding the currently limited library of CO2-philic and chem. stable membranes for highly efficient CO2 separation The results came from multiple reactions, including the reaction of 4-Fluorobenzonitrile(cas: 1194-02-1Application of 1194-02-1)
4-Fluorobenzonitrile(cas: 1194-02-1) is used as chemical intermediate, solvent for perfumes and pharmaceuticals, stabilizer for chlorinated solvents, HPLC analysis, catalyst and component of transition-metal complex catalysts.Application of 1194-02-1
Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts