Co3O4 nanoparticles with different morphologies for catalytic removal of ethyl acetate

Nanosized Co3O4 with different morphologies (rods-like (NR-), flowers-like (NF-), cages-like (NC-) and single crystal (NP-)) were synthesized by using hydrothermal and co-precipitation methods and applied in catalytic removal of ethyl acetate (EA). Complete EA conversion under a space velocity of 30,000 mL/ (g h) are shown at 210 degrees C for NP-Co3O4. The results of physicochemical properties reveals that NP-Co3O4 catalyst performs the best catalytic activity for EA oxidation attributed to larger specific surface area, better low-temperature reducibility, abundant Co3+ cationic species exposed on the (220) plane and sufficiently active surface oxygen species.

Automated summary

Nanosized Co3O4 with various morphologies were synthesized and tested for catalytic removal of ethyl acetate. Among them, single crystal NP-Co3O4 showed the highest catalytic activity, attributed to its large specific surface area and active surface oxygen species.