Hopcalite
[2][3] Hopcalite has the properties of a porous mass and resembles activated carbon in its appearance.[6] Although hopcalite-based catalysts have been used in practice for decades, many questions regarding their mode of action are still open.This is due to their complex structures, which make it difficult to obtain information about the active centers and the mechanisms of catalysis and deactivation.Although primarily used to catalyze the conversion of CO to CO2, hopcalite catalysts are also used to remove ethylene oxide and other VOCs as well as ozone from gas streams.[11] In addition, hopcalites catalyze the oxidation of various organic compounds at elevated temperatures (200–500 °C).
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