# Fileset

[POSTER for ICCCI2025.pdf](https://mdr.nims.go.jp/filesets/99863ec6-6621-430f-b5a6-81e3109536c0/download)

## Creator

[ESTILI Mehdi](https://orcid.org/0000-0003-1465-8148), [SUZUKI Tohru](https://orcid.org/0000-0001-9458-6863)

## Rights

[In Copyright](http://rightsstatements.org/vocab/InC/1.0/)

## Other metadata

[Carbon nanotube–MXene membranes for electrochemical energy applications](https://mdr.nims.go.jp/datasets/b6b9d099-42d1-4d69-8d5e-0e07af129f92)

## Fulltext

MXene–Carbon Nanotube Membranes for Electrochemical Energy Applications Superior prospect of  2D MXenes for electrochemical energy storage applications. Restacking and agglomeration of  MXenes considerably limit their true potential for fast ion transport. CNTs were dispersed to control the structure and porosity of  MXene membranes. CNT–MXene hybrid membranes show dramatically improved Li-ion transport properties.OverviewMethodStructure and Li-ion Transport Mechanism  A scalable method to fabricate ultralight yet continuous CNT–MXene membranes with uniform/3D CNTs dispersion. Correlation among CNTs content, surface microstructure, MXenes’ stacking structure & ion transport properties of  the films. Li-ion transport mechanisms in the CNT–MXene membranes. MXene membranes with tunable 2D and 3D structures with improved ion-transport performances. The compact surface microstructure of  MXene membranes is dramatically changed as CNTs occupy MXene/MXene edge interfaces. The 2D stacking order of  MXenes is preserved up to 30 wt% CNTs. The 2D alignment is completely disrupted at 40 wt% CNTs, and a more pronounced surface opening and internal expansion of  ~770% are realized. Both 30 wt% and 40 wt% membranes show stable cycling performance under a significantly higher current density due to faster transport channels. Notably, for the 3D 40 wt% membrane, over-potential during repeated Li deposition/dissolution reactions is further reduced by another ~50%. Ultralight yet continuous hybrid films comprising up to ~0.027 mg/cm2 Ti3C2 MXene can be prepared using aqueous colloidal dispersions and vacuum filtration for specific applications.Summary A method to fabricate ultralight yet continuous CNT–MXene membranes for electrochemical energy storage applications. Inexpensive multi-walled CNTs control the structure of  MXene membranes and improve their ion-transport properties.Mehdi ESTILI and Tohru S. SUZUKINational Institute for Materials Science (NIMS), Tsukuba, 305-0047, Japan / ESTILI.Mehdi@nims.go.jp M Estili, S Matsuda, L Jia, N Sakai, R Ma, TS Suzuki, K Uosaki, Nanoscale 2023, 15 (18), 8289-8303 M Estili, Carbon 2023, 203, 230-236 Slide Number 1