Retraction: Formation of Fe3O4@MnO2 ball-in-ball hollow spheres as a high performance catalyst with enhanced catalytic performances
Abstract
Retraction of ‘Formation of Fe3O4@MnO2 ball-in-ball hollow spheres as a high performance catalyst with enhanced catalytic performances’ by Shouwei Zhang et al., J. Mater. Chem. A, 2016, 4, 1414–1422, https://doi.org/10.1039/C5TA08400H.