Exfoliated Magnesium Diboride (MgB<sub>2</sub>) Nanosheets as Solid Fuels.
basic_science · Level V
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- Record sourced from PubMed, PMID 37656036.
- Also identified by DOI 10.1021/acs.nanolett.3c01910.
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Abstract
Magnesium diboride (MgB<sub>2</sub>) has been explored as an alternative fuel to boron (B) due to its high energy density and the additive effect of magnesium (Mg) to promote B combustion. However, the primary oxidation of MgB<sub>2</sub> does not occur unless it decomposes at a high temperature (830 °C), which makes ignition difficult and the reaction slow. Recently, two-dimensional (2D) exfoliated MgB<sub>2</sub> nanosheets have attracted increasing attention due to their unique properties and potential applications in various fields. In this study, we investigate the potential of 2D exfoliated MgB<sub>2</sub> nanosheets as solid fuels for overcoming the challenges of MgB<sub>2</sub> combustion. We analyzed their oxidation behavior and energetic performance through material characterization and combustion tests under slow- and fast-heating conditions and compared their performance with those of bulk MgB<sub>2</sub>, B nanoparticles, and a B/Mg nanoparticle mixture. This study highlights the potential of MgB<sub>2</sub> nanosheets as promising solid fuels with superior energetic properties.