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The mechanism of surface modification of titania by calcination with urea at 400 °C was investigated by substituting urea by its thermal decomposition products. It was found that during the urea‐induced process titania acts as a thermal catalyst for the conversion of intermediate isocyanic acid to cyanamide. Trimerization of the latter produces melamine followed by polycondensation to melem‐ and melon‐based...
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