Correction to: J Mater Sci (2012) 47:8134–8144 https://doi.org/10.1007/s10853-012-6709-3

The authors regret that Fig. 5 was not part of this study and was erroneously included. The authors have repeated the work and a new Fig. 5, which shows the XRD diffraction pattern of Pt/C(a) (a), catalysts Ia (b), IIa (c), IIIa (d), Pt/C(b) (e), catalysts Ib (f), IIb (g), and IIIb (h), is shown below. The authors confirm that this change does not affect the discussion and conclusions reported in the paper and apologize for any inconvenience caused.

Figure 5
figure 5

XRD diffraction pattern of Pt/C(a) (a), catalysts Ia (b), IIa (c), IIIa (d), Pt/C(b) (e), catalysts Ib (f), IIb (g), and IIIb (h)