Logo image
Back
Minimizing Intersheet Junction Resistivity via Au4Cu2 Nanocluster‐Based Connectivity in Mo2TiC2 MXene for Symmetric Supercapacitor Device
Journal article   Open access   Peer reviewed

Minimizing Intersheet Junction Resistivity via Au4Cu2 Nanocluster‐Based Connectivity in Mo2TiC2 MXene for Symmetric Supercapacitor Device

Tehseen Nawaz, Muhammad Ahmad, Iftikhar Hussain, Xi Chen, B. Moses Abraham, Shengli Zhuang, Kam Hung Low, Kaili Zhang and Jian He
Small structures, v 6(8), 2400664
Aug 2025
DOI: https://doi.org/10.1002/sstr.202400664
url
https://doi.org/10.1002/sstr.202400664View
Published, Version of Record (VoR) Open

Abstract

metal nanoclusters Mo2TiC2 MXene nanoscopic bridges supercapacitors
MXenes with their intrinsic metallic conductivity and redox versatility have emerged as frontrunners in the search for advanced energy storage materials. However, their energy storage capabilities are often hindered by the limited accessibility of electrolytes to active sites and enhanced electrical resistance due to the susceptibility to layer restacking. To address these challenges, a novel, ultrasmall Au4Cu2 nanocluster, strategically embedded within Mo2TiC2 MXene layers, is introduced. This integration is facilitated through precise interfacial local interactions, which govern the regulation of interlayer electron flow. The Au4Cu2 nanocluster modifies the local electron density, promoting a gradient in electronic conductivity throughout the MXene layers and acting as a nanoscopic bridge that counters the tendency for restacking. This approach markedly enhances the charge transfer efficiency and, consequently, the charge storage capacity. The nanoclusters/MXene composite‐based symmetric supercapacitor provides superior energy density and power density. The findings reveal a sophisticated interface engineering strategy for the prevention of interlayer restacking of MXenes that significantly elevates their ability to store charge. MXenes are promising materials for energy storage but face challenges like layer restacking and poor electrolyte access. To overcome this, researchers embeded ultrasmall Au4Cu2 nanoclusters within MXene layers. These nanoclusters improve electron flow and prevent restacking, boosting charge transfer and storage. This innovation enhances supercapacitor performance, offering a new way to improve MXene‐based energy storage materials.

Metrics

1 Record Views
5 citations in Web of Science

Details

Logo image