Preparation, Characterization and NO-CO Redox Reaction Studies over Palladium and Rhodium Oxides Supported on Manganese Dioxide

M.S. Fal Desai  -  Department of Chemistry, Goa University, Goa 403206, India
R. K. Kunkalekar  -  Department of Chemistry, Goa University, Goa 403206, India
*A. V. Salker  -  Department of Chemistry, Goa University, Goa 403206, India
Received: 22 Nov 2014; Published: 27 Feb 2015.
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The catalytic activity of PdO/MnO2 and Rh2O3/MnO2 is investigated for NO-CO redox reaction. Supported catalysts are prepared by wet impregnation method. Among the tested catalysts, PdO/MnO2 shows higher activity for this reaction. Active metal dispersion on MnO2 enhances the selectivity for N2 over N2O in this reaction. The XRD substantiate the formation of MnO2 monophasic phase. SEM images show the formation of elongated particles. TEM images indicate nano-size rod-like morphologies. An increase in the catalytic activity is observed on supported Pd and Rh oxides on MnO2. Temperature programed desorption studies with NO and CO are undertaken to investigate the catalytic surface studies. © 2015 BCREC UNDIP. All rights reserved

Received: 22nd November 2014; Revised: 31st December 2014; Accepted: 2nd January 2015

How to Cite: Fal Desai, M.S., Kunkalekar, R.K., Salker, A.V. (2015). Preparation, Characterization and NO-CO Redox Reaction Studies over Palladium and Rhodium Oxides Supported on Manganese Dioxide. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (1): 98-103. (doi:10.9767/bcrec.10.1.7802.98-103)



Keywords: Nitric oxide; Carbon monoxide; MnO2; PdO; Rh2O3

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  1. Thirupathi, B., Smirniotis, P.G. (2012). Nickel-doped Mn/TiO2 as an efficient catalyst for the low-temperature SCR of NO with NH3: catalytic evaluation and characterizations. Journal of Catalysis, 288: 74-83.
  2. Salker, A.V., Naik, S.J. (2009). Mechanistic study of acidic and basic sites for CO oxidation over nano based Co2-xFexWO6 catalysts. Applied Catalysis B: Environmental, 89: 246-254
  3. Shan, J., Zhu, Y., Zhang, S., Zhu, T., Rouvi-mov, S., Tao, F. (2013). Catalytic Performance and In-situ Surface Chemistry of Pure α-MnO2 Nanorods in Selective Reduction of NO and N2O with CO. Journal of Physical Chemistry C, 117: 8329-8335.
  4. Granger, P., Parvulescu, V.I. (2011). Catalytic NOx Abatement Systems for Mobile Sources: From Three-Way to Lean Burn after-Treatment Technologies. Chemical Revision, 111: 3155-3207.
  5. Li, J., Chen, J., Ke, R., Luo, C., Hao, J. (2007). Effects of precursors on the surface Mn species and the activities for NO reduction over MnOx/TiO2 catalysts. Catalysis Communication, 8: 1896-1900.
  6. Stankova, N.B., Khristova, M.S., Mehandjiev, D.R. (2001) Catalytic reduction of NO with CO on active carbon-supported copper, manganese, and copper-manganese oxides. Journal of Colloid Interface Science, 241: 439-447.
  7. Wan, H., Li, D., Dai, Y., Hu, Y., Liu, B., Dong, L. (2010). Catalytic behaviors of CuO sup-ported on Mn2O3 modified γ-Al2O3 for NO reduction by CO. Journal of Molecular Catalysis A: Chemical, 332: 32-44.
  8. Patel, A., Shukla, P., Chen, J., Rufford, T.E., Rudolph, V., Zhu, Z. (2012). Activity of mesoporous-MnOx and CuO/m-MnOx for catalytic reduction of NO with CO. Catalysis Today, 212: 38-44.
  9. Yu, Y., Zhao, J., Yan, Y., Han, X., He, H. (2013). Acyclic reaction pathway triggered by ammonia for the selective catalytic reduction of NOx by ethanol over Ag/Al2O3. Applied Catalysis B: Environmental, 136: 103-111.
  10. Lv, Y., Liu, L., Zhang, H., Yao, X., Gao, F., Yao, K., Dong, L., Chen, Y. (2013). Investiga-tion of surface synergetic oxygen vacancy in CuO–CoO binary metal oxides supported on γ-Al2O3 for NO removal by CO. Journal of Colloid Interface Science, 390: 158-169.
  11. Yao, X., Tang, C., Ji, Z., Dai, Y., Cao, Y., Gao, F., Dong, L., Chen, Y. (2013). Investigation of the physicochemical properties and catalytic activities of Ce0.67M0.33O2 (M = Zr4+, Ti4+, Sn4+) solid solutions for NO removal by CO. Catalysis Science and Technology, 3: 688-698.
  12. Xue, X. Y., Xing, L. L., Wang Y.G., Wang, T.H. (2009). Preparation, characterization and electrical transport properties of individual α-MnO2 and β-MnO2 nanorods. Solid State Science, 11: 2106-2100.
  13. Kunkalekar, R. K., Salker, A.V. (2013). Activity of Pd doped and supported Mn2O3 nano-materials for CO oxidation. Reaction Kinetics Mechnism and Catalysis, 108: 173-182.
  14. Kunkalekar, R. K., Salker, A.V. (2010). Low temperature carbon monoxide oxidation over nanosized silver doped manganese dioxide catalysts. Catalysis Communication, 12: 193-196.
  15. Njagia, E. C., Chen C. H., Genuino, H., Galindo, H., Huang, H., Suib, S. L. (2010). Total oxidation of CO at ambient temperature using copper manganese oxide catalysts pre-pared by a redox method. Applied Catalysis B: Environmental, 99: 103-110.
  16. Salker, A.V., Kunkalekar, R. K., (2009). Palladium doped manganese dioxide catalysts for low temperature carbon monoxide oxidation. Catalysis Communication, 10: 1776-1780.
  17. Lee Y. W., Gulari, E. (2004). Improved performance of NOx reduction by H2 and CO over a Pd/Al2O3 catalyst at low temperatures under lean-burn conditions. Catalysis Communication, 5: 499-503
  18. Li, M., Wu, X., Cao, Y., Liu, S., Weng, D., Ran, R. (2013). NO reduction by CO over Rh/Al2O3 and Rh/AlPO4 catalysts: Metal–support interaction and thermal aging. Journal of Colloid Interface Science, 408: 157-163
  19. Nakamoto, K. (2009). Infrared and Raman spectra of inorganic and coordination compounds, Part A, 6th edition. Wiley, United State.
  20. Long R.Q., Yang R.T. (1999). In Situ FT-IR Study of Rh-Al-MCM-41 Catalyst for the Selective Catalytic Reduction of Nitric Oxide with Propylene in the Presence of Excess Oxygen, Journal Physical Chemistry B, 103: 2232-2238.
  21. Worz A. S., Judai K., Abbet S., Heiz U.J. (2003). Cluster Size-Dependent Mechanisms of the CO + NO Reaction on Small Pdn (n ≤ 30) Clusters on Oxide Surfaces, Journal of American Chemical Society, 125: 7964-7970.

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