Rational design of new in situ reduction of Ni(II)catalytic system for low-cost and large-scale preparation of porous aromatic frameworks  

作　　者：Shanshan Wang Yue Wu Wenxiang Zhang Hao Ren Guangshan Zhu Heping Ma 

机构地区：[1]School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an,China [2]State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University,Changchun,China [3]College of Chemistry,Northeast Normal University,Changchun,China

出　　处：《Carbon Energy》2024年第5期105-113,共9页碳能源（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:21975096,22178280;Key Laboratory of Nuclear Data Foundation,Grant/Award Number:JCKY2021201C151;Young Talent Support Plan,Grant/Award Number:HG6J001。

摘　　要：Porous aromatic framework 1(PAF-1)is an extremely representative nanoporous organic framework owing to its high stability and exceptionally high surface area.Currently,the synthesis of PAF-1 is catalyzed by the Ni(COD)2/COD/bpy system,suffering from great instability and high cost.Herein,we developed an in situ reduction of the Ni(II)catalytic system to synthesize PAF-1 in low cost and high yield.The active Ni(0)species produced from the NiCl_(2)/bpy/NaI/Mg catalyst system can effectively catalyze homocoupling of tetrakis(4-bromophenyl)methane at the room temperature to form PAF-1 with high Brunauer-Emmett-Teller(BET)-specific surface area up to 4948 m^(2) g^(−1)(Langmuir surface area,6785 m2 g−1).The possible halogen exchange and dehalogenation coupling mechanisms for this new catalytic process in PAF's synthesis are discussed in detail.The efficiency and universality of this innovative catalyst system have also been demonstrated in other PAFs'synthesis.This work provides a cheap,facile,and efficient method for scalable synthesis of PAFs and explores their application for high-pressure storage of Xe and Kr.

关 键 词：adsorption carbon material nickel catalysis porous aromatic framework porous organic polymer 

分 类 号：O64[理学—物理化学]