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Engineering the Interlayer Spacing by Pre‐Intercalation for High Performance Supercapacitor MXene Electrodes in Room Temperature Ionic Liquid (Adv. Funct. Mater. 33/2021)
Author(s) -
Liang Kun,
Matsumoto Ray A.,
Zhao Wei,
Osti Naresh C.,
Popov Ivan,
Thapaliya Bishnu P.,
Fleischmann Simon,
Misra Sudhajit,
Prenger Kaitlyn,
Tyagi Madhusudan,
Mamontov Eugene,
Augustyn Veronica,
Unocic Raymond R.,
Sokolov Alexei P.,
Dai Sheng,
Cummings Peter T.,
Naguib Michael
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202170246
Subject(s) - supercapacitor , ionic liquid , intercalation (chemistry) , materials science , electrolyte , capacitance , imide , electrode , ionic bonding , chemical engineering , nanotechnology , ion , inorganic chemistry , polymer chemistry , chemistry , organic chemistry , engineering , catalysis
Interlayer Spacing In article number 2104007, Michael Naguib and co‐workers report the engineering of interlayer spacing of multilayer MXene—by pre‐intercalation of pillars—to host large‐size cations of room temperature ionic liquids in between the layers, achieving high energy density supercapacitors. An optimum interlayer spacing of 2.2 nm (for pre‐intercalated Ti 3 C 2 ) allows for a capacitance of 257 F g −1 (1428 mF cm −2 and 492 F cm −3 ) over a 3.2 V potential window in 1‐ethly‐3‐methylimidazolium bis‐(trifluoromethylsulfonyl)‐imide electrolyte.