Facile fabrication of shape-controlled CoMnO nanocatalysts for benzene oxidation at low temperatures.

We report a new strategy for the design and construction of CoMnO for CH oxidation, a representative VOC. The nanostructures of CoMnO can be tuned from nanowires to needles, hollow/hierarchical microspheres and nanocubes. Moreover, different nanostructures of CoMnO show diverse textural/structural/surface properties, which in turn show strikingly different catalytic performances. Benefitting from its unique structural feature, nanocubic MnO exhibits a superior to considerably high activity for CH oxidation at low temperatures.