Two-Dimensional MXene with Controlled Interlayer Spacing for Electrochemical Energy Storage

Patrice Simon (1, 2)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
2 RS2E - Réseau sur le stockage électrochimique de l'énergie

In this issue of ACS Nano, Luo et al. report the preparation of pillared two-dimensional (2D) Ti3C2 MXenes with controllable interlayer spacings between 1 and 2.708 nm. These materials were further intercalated by ion exchange with Sn(+IV) ions. The results show improved electrochemical performance due to improved ion accessibility into the 2D structure as well as the confinement effect, which limits volume expansion during the Li-alloying reaction. Beyond this specific example, the demonstration that the interlayer spacings of MXenes can be fine-tuned by creating pillared structures based on the spontaneous intercalation of surfactants opens new perspectives in the field of electrochemical energy storage.

Mots clés: Electrochemical Energy Storage

Domaines: Matériaux; Autre

Patrice Simon. Two-Dimensional MXene with Controlled Interlayer Spacing for Electrochemical Energy Storage. ACS Nano, 2017, 11 (3), pp.2393-2396. ⟨10.1021/acsnano.7b01108⟩. ⟨hal-02049143⟩