Carbon-coating has been shown to effectively provide protection to MgO under conditions that would normally cause decomposition and deactivation. In particular, it would be desirable to utilize the properties of MgO in aqueous and acidic environments. Previously reported methods towards carbon coating MgO (CC-MgO) utilized resorcinol or gaseous hydrocarbons as the carbon precursors which often times produces heterogeneous coatings.  Herein, we report a green, facile, scalable and reproducible method of carbon coating via a two step synthetic route.  Glucose is polymerized via solvothermal treatment, and then carbonized under inert conditions using systematically controlled temperature profiles and reaction times, yielding specific carbon thicknesses.  Glucose has been used to carbon coat other ceramic and composite materials like MnO2, LiCoO2, and LiFePO4. Characterization of materials was performed using TEM, BET, XRD, TGA, and Raman spectroscopy.  Stability studies were carried out under aqueous and acidic environments by observing changes in pH upon CC-MgO addition.

Imparting stability to MgO(111) via carbon coating processes

247th National Meeting (2014)

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