Porosity control: Mixed metal oxides (CuM/CeO2, M=Co, Fe) with tailored porosity were prepared by improved hard templating. These materials were highly active and selective catalysts for low-temperature oxidation of CO in the presence of excess H2 (see picture), a process which is central for the practical use of H2 in proton-exchange membrane fuel cells.
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Yen et al. (2012) studied this question.
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