Articles written in Journal of Chemical Sciences

    • Catalytic properties of SmMnO3/cordierite monolithic catalysts: acid treatment and calcination process optimization using response surface methodology


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      This work focuses on the optimization of the acid treatment and calcination process factorsaffecting the catalytic performance of the SmMnO3/cordierite monolithic catalyst for o-xylene oxidation,using response surface methodology (RSM) analysis. A central composite rotatable design (CCRD) was usedto statistically visualize the complex interactions of acid treatment time, acid concentration, calcination temperature, and calcination time for T50 and T90 values. And the validity of the models developed wasverified by experiments. Statistics showed the most significant process factor which affects catalytic combustion activity is acid treatment time. It is also shown that the catalytic activity increases with increasing acid treatment time or acid concentration and that a moderate calcination temperature or time is required toincrease the catalytic activity. Furthermore, it was found through SEM analysis that the acid treatmentprocess significantly impacts the morphology of the SmMnO3/cordierite monolithic catalysts. Thus, RSM isan effective technique for estimating the catalytic activity of monolithic catalysts.

      In this work, the effects of acid treatment and calcination process on the catalytic performance of SmMnO3/cordierite monolithic catalyst for o-xylene oxidation were based on response surface methodology (RSM) through presenting a mathematical modeling and factorial analysis.

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