| Abstract
| - A polyol process was developed to synthesize Co3O4 with controllable superstructures. By tuning the reactionconditions, the prepared Co3O4 were readily regulated in its morphologies, which could vary from nanosphereto two-dimensional (2D) nanoplates and 3D hierarchical structures, and finally to microspheres. The growthkinetics of such a process was also studied. The synthesized Co3O4 exhibited good sensitivity, remarkableselectivity, and high stability as an alcohol sensor material.
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