Gold nanoparticles loaded on TiO2 nanoparticles doped with N2 as an efficient electrocatalyst for glucose oxidation: preparation, characterization, and electrocatalytic properties

Abstract A powder of titanium oxide nanoparticles (TiO 2 NPs) was synthesized in this study by anodizing 0.7 M HClO 4 and then annealing N at 450 °C for 3 h to produce TiO NPs-N as a catalyst. These were encrusted with Au utilizing the photodeposition procedure tetrachloroauric acid (HAuCl ) isopropanol sacrificial donors. With surface area 121 m g −1 , NPs/TiO catalyst has high area, according Barrett–Joyner–Halenda technique. According X-ray diffraction (XRD) analysis, contained uniformly integrated an average crystallite size about 26.8 nm. The XRD patterns showed that prepared crystallites nano-sized. transmission electron microscopy image revealed spherical shape their tendency agglomeration. Utilizing cyclic voltammetry, electrochemical properties NPs powders basic glucose solution investigated. electrocatalytic activity stability loaded on working electrode oxidation astonishingly high. demonstrated characteristics superior commercially available polycrystalline gold application involving alkaline fuel cells.