Karzan Omar - CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE ON MANGANESE DIOXIDE NANOPARTICLES AT DIFFERENT PH VALUES

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      Publication Details (including relevant citation   information):

        OMAR, K. A. CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE ON   MANGANESE DIOXIDE NANOPARTICLES AT DIFFERENT PH   VALUES.International Journal of Research in Engineering   & Technology, Vol. 2, Issue 5, May 2014.

       

      Abstract:

      Catalytic decomposition of hydrogen peroxide on manganese dioxide   nanoparticles was studying under different experimental   conditions such as pH (1, 6.5 and14) and at 15°C Temp. The   kinetics of the reaction was analyzed by first order equation and   rate constants were determined from the slopes of the straight   lines. It was observed from the experimental results that the   decomposition rate constant was found to be dependent on pH. MnO2   nanoparticles used as a catalyst for decomposition H2O2 were   synthesized by chemical co-precipitation method. The as-prepared   MnO2 nanoparticles were systematically characterized by X-Ray   diffraction (XRD), FTIR and SEM - EDX analysis techniques. The   average particle size of manganese dioxide nanoparticles was   calculated from the XRD study. The average particle size of MnO2   nanoparticles was 14 nm. The resulting MnO2 nanoparticles were   found to exhibit remarkable environmental catalytic performance   in the catalytic decomposition of hydrogen peroxide in aqueous   solution.  

      Address (URL): http://www.impactjournals.us/download.php?fname=2-77-1400522411-29.%20Eng-Cataly tic%20Decomposition%20of%20Hydrogen%20Peroxide%20on%20Manganese-Karzan%20Abdulka reem.pdf