Activated carbon honeycomb supported manganese and cerium oxides (MnO x –CeO2/ACH) catalysts were investigated for selective catalytic reduction (SCR) of NO at low temperatures of 80–200 °C. Compared with ACH supported manganese oxide catalyst (MnO x /ACH), MnO x –CeO2/ACH catalysts show much higher SCR activity and higher selectivity to N2. NO conversion can be improved by the addition of CeO2 from less than 50% to 100% at 80–160 °C. The N2 selectivity of higher than 99.8% is obtained over the Ce(1)Mn/ACH catalyst at 80–200 °C. Results indicate that the addition of CeO2 improves the distribution of MnO x and enhances the oxidation of NO to NO2, producing more absorbed NO3 – on the catalyst surface, which is then reduced into N2 by NH3. These behaviors account for the promoting effect of CeO2 on the SCR activity.

A facile in situ surface anchoring process is proposed for the fabrication of novel hard carbon/graphite composites. Such unique composites can be used as promising anodes for lithium-ion batteries with high performance.

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