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CuO/CeO2–MnO2 (CuCeMn-4) catalyst was prepared by redox method and was tested in the CO preferential oxidation in H2-rich gases (CO PROX). CuO/CeO2–Mn2O3 (CuCeMn-3) catalyst was prepared and tested for comparison. CuCeMn-4 exhibits higher catalytic activity than CuCeMn-3. The complete CO conversion with CO2 selectivity of 92% can be obtained at 120 °C over CuCeMn-4. The catalysts were characterized...
A series of MnOx modified cobalt oxides with different atomic molar ratios of Mn/(Mn + Co) were prepared by a soft reactive grinding route and investigated for CO preferential oxidation in H2. It was found that as-prepared Mn-doped cobalt oxides exhibited superior activity compared to the single constituted oxides, other Mn–Co–O mixed oxides synthesized by solution-based route, and other grinding-derived...
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