Pillared Mo₂TiC₂ MXene for high-power and long-life lithium and sodium-ion batteries.

ABSTRACT: In this work, we apply an amine-assisted silica pillaring method to create the first example of a porous Mo₂TiC₂ MXene with nanoengineered interlayer distances. The pillared Mo₂TiC₂ has a surface area of 202 m² g^-1, which is among the highest reported for any MXene, and has a variable gallery height between 0.7 and 3 nm. The expanded interlayer distance leads to significantly enhanced cycling performance for Li-ion storage, with superior capacity, rate capably and cycling stability in comparison to the non-pillared analogue. The pillared Mo₂TiC₂ achieved a capacity over 1.7 times greater than multilayered MXene at 20 mA g^-1 (≈320 mA h g^-1) and 2.5 times higher at 1 A g^-1

SUBMITTER: Maughan PA 

PROVIDER: S-EPMC8168926 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature