NICKEL(Ⅱ)ion-intercalated MXene membranes for enhanced H_(2)/CO_(2) separation

作     者：Yiyi Fan Jinyong Li Saidi Wang Xiuxia Meng Yun Jin Naitao Yang Bo Meng Jiaquan Li Shaomin Liu Yiyi Fan;Jinyong Li;Saidi Wang;Xiuxia Meng;Yun Jin;Naitao Yang;Bo Meng;Jiaquan Li;Shaomin Liu

作者机构：School of Chemical EngineeringShandong University of TechnologyZibo 255049China Department of Chemical EngineeringCurtin UniversityPerthWA 6845Australia College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2021年第15卷第4期

页      面：882-891页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China(Grant Nos.21776165,21878179 and 21978157) Naitao Yang gratefully thanks the support via Natural Science Foundation of Shandong Province(ZR2019MB056) Shaomin Liu acknowledges the financial support provided by the Australian Research Council(DP180103861) 

主　　题：MXene H_(2)/CO_(2)separation nickel ions hollow fiber 

摘      要：Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy.A membrane-assisted separation is promising in producing high-purity H_(2).Molecular sieving membranes(MSMs)are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion,diffusion,and *** this work,MXene nanosheets intercalated with Ni^(2+) were assembled to form an MSM supported on Al_(2)O_(3) hollow fiber via a vacuum-assisted filtration and drying *** prepared membranes showed excellent H_(2)/CO_(2) mixture separation performance at room *** factor reached 615 with a hydrogen permeance of 8.35×10^(-8) mol·m^(-2)·s^(-1) ·Pa^(-1).Compared with the original Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes,the permeation of hydrogen through the Ni^(2+)-Ti_(3)C_(2)T_(x)/Al_(2)O_(3) membrane was considerably increased,stemming from the strong interaction between the negatively charged MXene nanosheets and Ni^(2+).The interlayer spacing of MSMs was tuned by Ni^(2+).During 200-hour testing,the resultant membrane maintained an excellent gas separation without any substantial performance *** results indicate that the Ni2+tailored Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes can inspire promising industrial applications.