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Reaction of low surface area carbon with a mixture of urea and boric acid at 930 °C yields a composition close to BC4N with a graphitic structure. BC4N was characterized by electron energy loss spectroscopy, X‐ray photoelectron spectroscopy, transmission electron microscopy, Raman spectroscopy, and X‐ray diffraction. BC4N is a porous ceramic with a surface area of 428 m2·g–1, and shows a CO2 uptake...
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