Rational Design of Titanium Carbide MXene Electrode Architectures for Hybrid Capacitive Deionization
Rational Design of Titanium Carbide MXene Electrode Architectures for Hybrid Capacitive Deionization作者机构:Department of Materials Science and Engineering and A.J.Drexel Nanomaterials InstituteDrexel UniversityPhiladelphia PA 19104USA Qatar Environment and Energy Research Institute(QEERI)Hamad Bin Khalifa University(HBKU)P.O.Box 34110Doha Qatar
出 版 物:《Energy & Environmental Materials》 (能源与环境材料(英文))
年 卷 期:2020年第3卷第3期
页 面:398-404页
核心收录:
学科分类:0710[理学-生物学] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0805[工学-材料科学与工程(可授工学、理学学位)] 0706[理学-大气科学] 0702[理学-物理学]
基 金:financial support from Qatar National Research Fund(a member of Qatar Foundation)through the NPRP Grant#9-254-2-120 Support from the National Science Foundation(CMMI-1635233)
主 题:MXene bi-stacked design water desalination purification CDI
摘 要:Intercalation redox materials have shown great promise for efficient water desalination due to available faradaic gallery *** capacitive deionization(CDI)cells previously demonstrated using MXenes were often limited in their salt adsorption capacity(SAC)and voltage window of *** this study,current collector-and binder-free Ti3C2Tx MXene electrode architectures are designed with porous carbon as the positive electrode to demonstrate hybrid CDI(HCDI)***,MXene current collectors are fabricated by employing a scalable doctor blade coating technique and subsequently spray coating a layer of a small flake MXene *** redox-active galleries of MXenes are capable of intercalating a variety of aqueous cations including Na+,K+,and Mg2+ions,showing volumetric capacitances up to 250 F *** a result,a salt removal capacity of 39 mg g-1 with decent cycling stability is *** study opens new avenues for developing freestanding,binder-and additivefree MXene electrodes for HCDI applications.