MXene/MOF synergy: HKUST-1 integration with Ti₃C₂Tₓ MXene via aqueous hydrothermal synthesis

Citation

Samylingam, Lingenthiran and Aslfattahi, Navid and Clint, K. S. and Kadirgama, K. and Kiai, Maryam Sadat and Kok, Chee Kuang and Jumadi, Juliana and Haron, W. S. W. (2026) MXene/MOF synergy: HKUST-1 integration with Ti₃C₂Tₓ MXene via aqueous hydrothermal synthesis. Polyhedron, 291. p. 118089. ISSN 0277-5387

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Abstract

Ti3C2Tx MXene offers high electrical conductivity and surface activity but suffers from restacking and gradual oxidation, which limit its long-term stability. In this work, an MXene–HKUST-1 hybrid was fabricated through a one-step hydrothermal treatment in water. SEM–EDX and XPS analyses confirm that HKUST-1 crystallites are uniformly anchored onto delaminated MXene sheets through strong interfacial coordination. XRD results indicate that the hybrid retains the MXene framework while incorporating minor copper-related crystalline domains, whereas FTIR and TGA further verify the successful integration and enhanced thermal stability of the composite. DFT calculations reveal that oxygen-terminated MXene surfaces preferentially interact with Cu nodes in the HKUST-1 structure, leading to the formation of stable Ti–O–Cu interfacial bridges. The overlap of Ti d-, Cu d-, and O p-orbitals facilitates efficient charge transfer and improves electronic conductivity at the interface. These structural and electronic features demonstrate the formation of a robust and well-integrated hybrid material. As a result, the MXene–HKUST-1 composite is promising for electrocatalysis, sensing, and adsorption, particularly for CO₂ reduction and electrochemical energy-related applications.

Item Type: Article
Uncontrolled Keywords: Electrical conductivity
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 03 Apr 2026 03:52
Last Modified: 07 Apr 2026 08:21
URII: http://shdl.mmu.edu.my/id/eprint/15691

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