Ag nanoparticles loaded on multi-walled carbon nanotubes and their electrocatalytic effect on oxidation of methanol

Silver nanoparticles loaded on multi-walled carbon nanotubes (AgNP@MWNT) had been successfully prepared with water-soluble poly (sodium 4-styrenesulfonate-co-acrylic acid) (PSA) grafted MWNT as template, and their electrocatalytic effect on oxidation of methanol was studied in alkaline state. Due to PSA grafted on MWNT, the AgNPs were uniformly loaded on the surface of MWNT with size of 2-4 nm, and the interface between AgNP and MWNT was enhanced greatly. Additionally, AgNP@MWNT had good dispersivity in water, good electrocatalytic activity and tolerance to poisoning species in the oxidation of methanol.