Borohydride stabilized gold-silver bimetallic nanocatalysts for highly efficient 4-nitrophenol reduction.

Bimetallic Au x Ag1-x nanoparticles, prepared using sodium borohydride as the sole reducing and capping agent for various NaBH4 : metal molar ratios, were investigated as catalysts for 4-nitrophenol reduction. This approach yielded the highest catalytic activities observed for this model reaction to date.