Magnesium Oxide

Shook, Brian C.

doi:10.1002/047084289x.rn00418

Cited by 1 publication

(1 citation statement)

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“…Here, we present a new versatile pathway to create coatings from these precursors on arbitrary (nonmetallic) surfaces that relies on magnesium oxide (MgO) catalytic nanoparticles incorporated directly in a suspension with the liquid-phase precursor. MgO is a known catalyst for dehydrohalogenation and a number of other reactions. , High-surface-area, 2D MgO, which was synthesized from natural seawater, was used in the reaction, making it a sustainable catalyst with high natural abundance, which enhances the green chemistry attributes of the process. By using 1,2-dichloro-4-fluorobenzene (DCFB), we demonstrate that this plasma-enabled process can effectively cleave C–Cl, C–F, and C–H bonds, leading to the formation of superhydrophobic graphene-like nanocarbon coatings.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Graphene-Like Nanocarbon Film Formation on Arbitrary Surfaces through MgO Nanoparticle Catalysis: Advanced Coatings for Energy Storage and Nanocomposites

Hartl

Ekanayake

O’Mullane

et al. 2022

ACS Appl. Nano Mater.

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Simple, fast, and economical graphene synthesis methods are of interest because of its diverse uses in energy storage, composite coatings, water purification, and other applications. This work illustrates a rapid method to produce graphene-like nanocarbon films at room temperature and ambient pressure. We show that, within a dielectric barrier discharge plasma, magnesium oxide (MgO) nanoparticles can convert the liquid small-molecule precursors 1,2-dichloro-4-X-benzene (where X is I, Br, Cl, and F) to graphene-like nanocarbon films. The nanoparticle MgO that catalyzes the reaction is sustainably produced from seawater and enables a dehydrohalogenation reaction that leads to production of the graphene-like product. We investigate the morphology and chemistry of the films and show how these contribute to physical properties like wettability, including the formation of superhydrophobic fluorinated films with water contact angles above 150°. The use of dispersed, nanoscale MgO catalysts allows us to fabricate these coatings on a range of substrates, creating the potential for their use in applications such as advanced coatings, energy storage, and composites.

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Section: Introductionmentioning

confidence: 99%