Abstract
In this work, a mixing-calcination method was developed to facilely construct MXene/CuO nanocomposite. CuO and MXene were first dispersed in ethanol with sufficient mixing. After solvent evaporation, the dried mixture was calcinated under argon to produce a MXene/CuO nanocomposite. As characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and X-ray photoelectron spectra (XPS), CuO nanoparticles (60–100 nm) were uniformly distributed on the surface and edge of MXene nanosheets. Furthermore, as evaluated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA), the high-temperature decomposition (HTD) temperature decrease of ammonium perchlorate (AP) upon addition of 1 wt% CuO (hybridized with 1 wt% MXene) was comparable with that of 2 wt% CuO alone, suggesting an enhanced catalytic activity of CuO on thermal decomposition of AP upon hybridization with MXene nanosheets. This strategy could be further applied to construct other MXene/transition metal oxide (MXene/TMO) composites with improved performance for various applications.
Highlights
Since the first report of Ti3 C2 in 2011, MXenes have gained significant attention as a new family of 2D transition metal carbides or nitrides
We further evaluated the catalytic effect of the MXene/CuO nanocomposite on thermal decomposition of ammonium perchlorate (AP) by referring to our reported method [21]
A MXene/CuO nanocomposite was constructed through a facile mixingcalcination method
Summary
Since the first report of Ti3 C2 in 2011, MXenes have gained significant attention as a new family of 2D transition metal carbides or nitrides. Most commonly adopted methods, such as hydrothermal [16,17] and precipitation methods [10,18], need precise control of reaction conditions and sometimes a long reaction time and a large amount of solvent are necessary. Such methods are unfavorable for the efficient production and environment protection.
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