Hidróxido de níquel suportado em carbono: um catalisador de baixo custo para a eletro-oxidação de alcoóis em meio alcalino

Abstract

Recebido em 5/4/10; aceito em 6/10/10; publicado na web em 3/11/10 CARBON SUPPORTED NICKEL HYDROXIDE: A LOW COST CATALYST FOR ALCOHOL ELECTRO-OXIDATION IN ALKALINE MEDIUM. The present manuscript shows the synthesis of nickel hydroxide supported in carbon (Ni(OH) 2 /C) as a alternative material for catalytic alcohol oxidation in alkaline medium. The Ni(OH) 2 /C was synthesized in different percentage using a sonic bath. No current densities variation during successive cyclic voltammetry experiments was observed. The Ni(OH) 2 /C electrodes exhibit a potent and persistent electrocatalytic activity towards the oxidation of different alcohols. In addition, alcohols electooxidation occurs in less positive potential compared with noble metal catalyst.