From gold porphyrins to gold nanoparticles: catalytic nanomaterials for glucose oxidation

Au(III) porphyrin was synthesized and evaluated for electrocatalytic oxidation of glucose. These Au(III) porphyrins, immobilized on a multiwalled carbon nanotube matrix, oxidized glucose at low over-potentials. Furthermore, AuNPs were electrogenerated by reduction of the Au(III) porphyrins. The electrocatalytic properties of these compounds towards glucose oxidation were compared and characterized by electrochemistry, electron microscopy and XPS.