Fig. 5From: Improved SERS Performance and Catalytic Activity of Dendritic Au/Ag Bimetallic Nanostructures Based on Ag Dendritesa Time-dependent UV-vis absorption spectra of the reduction of 4-NP by NaBH4 in the presence of dendritic Au/Ag bimetallic nanostructures (Ag180s-Au90s). b Plots of -ln(A/A0) at λ = 400 nm as a function of reaction time in the presence of catalysts with the same areaBack to article page