4.2 Article

Nitric oxide reduction by carbon monoxide and carbon monoxide oxidation by O2 over Co-Mn composite oxide material

期刊

APPLIED NANOSCIENCE
卷 10, 期 1, 页码 141-149

出版社

SPRINGER HEIDELBERG
DOI: 10.1007/s13204-019-01109-y

关键词

NO-CO redox reaction; Composite oxides; CO-pulse titration; H-2-TPR; Nano-size

资金

  1. UGC-New Delhi under RGNF Fellowship

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The promotional effect of precious metals in composite oxides has been observed in several catalytic reactions. In the present study, investigation of the CO oxidation with O-2 and NO-CO redox reaction over Pd-containing cobalt-manganese composite was discussed. The composite oxides were prepared via glycine-aided combustion method. The physical properties of the catalysts were studied using X-ray diffraction, BET surface area, SEM, TEM and XPS. The strength of surface oxygen and surface reactivity of metal and CO were studied by H-2-TPR and CO-pulse titration. It was observed that CO oxidation in cobalt-manganese composite oxide containing 5% PdO starts from 30 degrees C and the reaction gets completed at 65 degrees C. Also in NO-CO redox reaction, it shows complete detoxification at 170 degrees C with a good stability.

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