Abstract:

Ni(OH)2 doped with carbon(C-Ni(OH)2) microsphere was prepared by the hydrothermal method via starting with sodium gluconate and nitrate nickel. The precipitant OH- comes from the hydrolysis of sodium gluconate′s carboxylic acid. The asprepared C-Ni(OH)2 microsphere was adopted as the precursor for fabricating Ni doped with carbon(C-Ni) microsphere by calcined 8 h at 600 ℃ in N2, and the resulting C-Ni microsphere was further characterized by FE-SEM, XRD, EDS, and BET, verifying the C-Ni microsphere possess considerable large surface area and pore volume of about 276 m2/g and 0.248 cm3/g, respectively. Finally, the electrochemical experiment showed that C-Ni microsphere exhibited good electrocatalytic activity toward the oxidation of glucose.

Key words: carbon doped, Ni microsphere, hydrothermal method, glucose, electrocatalytic oxidation