Figure 4
From: Spectroscopically clean Au nanoparticles for catalytic decomposition of hydrogen peroxide
Raman spectra of R6G on 50 nm Au NPs supported on SiO2 collected after thermal treatment at (a) 150, (b) 250 and (c) 350 °C for varying time period (0.5, 1, 2, 3.5 h) under N2 atmosphere. Spectra were acquired at 632.8 nm (~ 8 mW, 20 s). (d) Summary of calculated EFs for R6G using the band at 1364 cm−1 for Au NPs supported on SiO2 after thermal treatment.
