Manufacturing and characterization of composite chemical plating lightweight conductive particles base on microorganisms template

In this paper, Cu@Ag was coated on biological particles (diatomite and spirulina) by electroless plating to manufacture bio-based core-shell-type conductive particles. The shape appearance, surface morphology, coating composition and conductivity of Cu@Ag-coated diatomite/spirulina were characterized by optical microscopy, scanning electron microscopy, energy dispersive spectrometer and SZT-2A-type four-probe tester. The results show that, high quality bio-type conductive particles surface can be made by adjusting the proportion of electroless copper plating solution and electroless silver plating solution. The density of bio-type conductive particles was much lower than that of the pure metal powder.