Figure 4
From: Real-Time Optical Monitoring of Pt Catalyst Under the Potentiodynamic Conditions
(a) HR-TEM images of single Au@Pt assembly showing the morphological changes with respect to the CV cycle number. Scale bars are 10 nm. (b) Normalized intensity and (c) wavelength shift of LSPR spectra obtained from DDA simulation in according to the Pt morphology and corresponding Pt/Au mass ratio (i.e., cycle number). The cycle number for each remarks represent 0, 50, 100, 200, 300, and 400 in order with the direction of arrow. (d) The calculated total Pt surface area for Au@Pt assembly by using LSPR intensity (SAPt-LSPR) and the TEM image (SAPt-TEM).
