A carbon glassy electrode modified by gold nanoparticles was prepared.The elect-rochemical behavior of hemoglobin on the modified electrode was investigated and it was found that the modified electrode has an obvious electrocatalytic effects on the hemoglobin.The electrode shows a linear range of ipa(μA)=0.0981+2.7169c for hemoglobin in a HAcNaAc buffer medium of pH 4.6.The relative standard deviation for eight determinations of 1×10-5mol/L hemoglobin is 0.85 %.The modified electrode shows excellent stability and reproducibility.
A large scale Palladium nanowire array was directly grown on the surface of glassy carbon electrode by direct current electrolysis with the help of anodic aluminum oxide template.High-resolved SEM photographs have indicated that the Palladium nanowire arrays were highly uniform and ordered.The diameter of single Pd nanowire was about 30 nm,which agreed well with the porous diameter of used template.Meanwhile,the electrocatalytic activity of Pd NWAs electrodes for ethanol oxidation in alkaline media was studied.It is found that the obtained nanostructurs exhibit excellent catalytic activity for ethanol.
