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Adsorption isotherms of nitrogen, argon and methane were experimentally measured at 77 K on low surface area graphitised carbons and natural graphite. For direct comparison, theoretical isotherms for the same gases were calculated on a model, flat surface by using NL DFT. Vulcan (a graphitised carbon black, often used as a surface area standard) was shown to represent a good approximation of a flat...
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