Abstract
A simple approach was presented to fabricate Keggin-type polyoxometalates (POMs) hollow spheres (KPHS) using the colloidal carbon spheres as the hard templates. The C@POMs core-shell colloids were successfully prepared by using the highly uniform carbon microspheres as the hard templates without any surface modifications. And then a calcination treatment of the POMs modified carbon spheres (C@POMs) was employed to remove the carbon cores, resulting in the final products of KPHS. The as-prepared products possessed the intrinsic properties of POMs. In addition, the KPHS represents good electrochemical and electrocatalytic properties. This work may provide the new insights into preparing POMs-based nano/microstructures.
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