Data analysis lower surface preparation

Green and co-workers (68) prepared 5-NbC with surface areas as high as 113 m /g from the TPRe of niobium oxide with C2H6/8.6 H2 as a reactive gas. They also synthesized 5-NbC with a surface area of 76 m /g from the carburization of niobium nitride using CH4/4H2 mixture gas. They did not report the elemental analysis data for these materials, which would give information on the carbon contamination. In most cases, the use of the nitride as a precursor or ethane as a reactant increases the surface area of the products, as well as lowers the required synthesis temperature. Nitrides can be converted readily to carbides while maintaining both the high surface area and structure. 

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