Gold-palladium-platinum three-metal nano composite material with zigzag structure and synthesis method of gold-palladium-platinum three-metal nano composite material

The invention discloses a gold-palladium-platinum three-metal nano composite material with a zigzag structure and a synthesis method thereof. The synthesis method comprises the following steps: S1, preparing a gold nanorod by utilizing a seed growth method; s2, dispersing 1mL of cleaned gold nanorods into 34mL of 30mM CTAB (cetyltrimethyl ammonium bromide) solution, adding a reducing agent and an aqueous solution containing palladium ions in a high-temperature environment, and standing; adding an aqueous solution containing platinum ions, continuously standing at high temperature, and growing; and centrifuging the grown solution, and removing the supernatant to finally obtain the gold-palladium-platinum zigzag trimetal nanoparticles. The prepared gold-palladium-platinum tri-metal nano-particles with the zigzag structures keep the sensitivity of the plasmon characteristic of gold nanorods to visible light and also have the excellent catalytic characteristic of a palladium-platinum material, the two characteris