Artículos de revistas
Kinetic study of the decomposition of hydrogen peroxide catalysed by Co(II) acetylacetonate supported on a silica-propylpiperazine matrix
Colloids And Surfaces A-physicochemical And Engineering Aspects. Elsevier Science Bv, v. 136, n. 41671, n. 151, n. 154, 1998.
de Souza, AG
The catalytic decomposition of hydrogen peroxide by Co(II)acetylacetonate supported on a propylpiperazine-silica matrix (Co(II)(acac)-PPS) was studied in aqueous media. The results showed that the reaction was first order in H2O2. It was found that the reaction rate was pH dependent with a maximum at around pH = 8. Activation parameters were determined in the temperature range 30-45 degrees C. The low value obtained for the activation energy is in accordance with the proposed free-radical mechanism. (C) 1998 Elsevier Science B.V.13641671151154