Porous Mn–Co mixed oxide nanorod as a novel catalyst with enhanced catalytic activity for removal of VOCs

• Porous Mn5Co5 oxide nanorod with high surface area was prepared by an oxalate route.
• The catalyst showed high activities for total oxidation of ethyl acetate and n-hexane.
• The catalytic activities of the mixed oxide were much better than the single oxides.
• The superior activity was due to the strong interaction of Mn–Co in the mixed oxide.

Mn–Co mixed oxide nanorod with porous structure and high surface area was fabricated by an oxalate route and further used for deep oxidation of VOCs. Compared to the single MnOx or Co3O4, the Mn–Co mixed oxide showed an enhanced activity for ethyl acetate and n-hexane oxidation with T90% was low to 194 and 210 °C at a high space velocity, respectively. The formation of solid solution with spinel structure inhibits the growth of nanoparticles which leads to its higher surface area, and the strong synergistic effect of Mn–Co species in the oxide makes a great contribution to its low temperature reducibility which plays a key role in VOCs' oxidation.

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