Summary.
Transition metal sulfates of Cu(II), Co(II), Ni(II), Cr(III), Mn(II), and Fe(III) supported on ZnO were prepared and characterized by SEM, EDX, and XRD. The kinetics of the heterogeneous decomposition of H2O2 over these supported catalysts was investigated. The reaction rate is correlated with both the amount of supported metal ion and its redox potential. The rate of reaction increases with increasing initial concentration of H2O2, attains a maximum, and decreases thereafter. It also increases with pH and reaches a maximum at high pH values. A reaction mechanism is proposed that implies the formation of a peroxo intermediate at the early stages of the reaction. A second intermediate is assumed to be formed at high [H2O2]o which inhibits the progress of the reaction.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Author information
Authors and Affiliations
Additional information
Received April 26, 2000. Accepted (revised) August 24, 2000
Rights and permissions
About this article
Cite this article
Salem, I. Catalytic Decomposition of H2O2over Supported ZnO. Monatshefte fuer Chemie 131, 1139–1150 (2000). https://doi.org/10.1007/s007060070021
Issue Date:
DOI: https://doi.org/10.1007/s007060070021