Resumo

BUZZO, Guilherme S.; NIQUIRILO, Rafael V.  e  SUFFREDINI, Hugo B.. Active Pt-PbO_x/C anodes to promote the formic acid oxidation in presence of sulfuric acid. J. Braz. Chem. Soc. [online]. 2010, vol.21, n.1, pp. 185-190. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532010000100026.

The performance of Pt-PbO_x-based catalysts to promote the formic acid oxidation is described here. All materials were synthesized by a modified sol-gel method. Voltammetric studies showed that the Pt-PbO_x/C anode starts the oxidation process at extremely low potentials. Quasi-stationary polarization experiments and current vs. time measurements confirmed this affirmation.

Palavras-chave : lead oxide-based catalysts; Pb; formic acid oxidation; modified sol-gel method; energy.