Fig. 6From: Shell isolated nanoparticle enhanced Raman spectroscopy for mechanistic investigation of electrochemical reactionsSHINERS of the ORR in a 0.1Â M HClO4 solution saturated with O2 at the a Pt(111) electrode surface, b Pt(100) electrode surface, and c Pt(110) electrode surface, d The scanning electron microscopy (SEM) images of a Pt(111) single-crystal electrode surface modified with Au@SiO2, reproduced with permission from [20]. Copyright (2018) Springer Nature LimitedBack to article page