Abstract: | In this work, we have synthesized CoCO3 microaggregation, microcubes and nanoplates by an ionic liquid‐assisted hydrothermal method. The morphologies of the CoCO3 crystals depend on the concentration of the ionic liquid and the reaction temperature. Moreover, the as‐prepared CoCO3 crystals can serve as a useful precursor to obtain porous Co3O4 particles with similar morphology by means of calcinations. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |