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100 mg powder was loaded in a stainless tube reactor, and the reactor was heated from room temperature to 600 ºC at a rate of 2 ºC/min. The total gas flow rate was 40 ml/ min corresponding to a space velocity (SV) of 24000 mL g-1 h-1, and the inlet gas composition was 1 % CO and 5 % O2 with N2 as balance.
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The selected experimental conditions are very favourable for CO oxidation, as large excess of oxygen and more importantly rather low space velocities have been used.
About the concern of space velocity my concern was more general. We are looking at the process of CO oxidation. In this respect the comparison should be made with state of the art system and not just with similar materials.
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