Catalytic soot combustion in presence of molybdates Li2Cu2-xAgx(MoO4)3

Authors

  • Karpovich N.F. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russian Federation
  • Lebukhova N.V. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russian Federation
  • Makarevich K.S. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russian Federation
  • Chigrin P.G. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russian Federation
  • Kirichenko E.A. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russian Federation

UDC

541.128.3+66.048.6

Abstract

The synthesis of Li2Cu2-xAgx(MoO4)3 phases ($0\le x\le 0.1$), which have monoclinic syngony and structural type of Li2Cu2(MoO4)3, was carried out. It was shown that molybdates Li2Cu2(MoO4)3 and Ag2Cu2(MoO4)3 possess by catalytic ability in soot oxidation process and can substantially reduce CO yield in combustion products. The Ag additive to Li2Cu2(MoO4)_3$ molybdate in range $0\le x\le 0.1$ leads to soot ignition temperature reduction from 408° to 382°C (587°C at uncatalytic combustion). The obtained results are useful at development of diesel exhaust emission abatement catalysts.

Keywords:

catalytic soot combustion, double molybdates, CO conversion

Author info

  • Natalya F. Karpovich

    канд. хим. наук, старший научный сотрудник Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

  • Natalya V. Lebukhova

    канд. хим. наук, ведущий научный сотрудник Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

  • Konstantin S. Makarevich

    канд. техн. наук, научный сотрудник Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

  • Pavel G. Chigrin

    аспирант Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

  • Evgeniy A. Kirichenko

    аспирант Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

References

  1. Stanmore B.R., Brilhas J.F., Gilot P. The oxidation of soot: the review of experiments, mechanism and model // Carbon, 2001. Vol. 39. P. 2247-2268.
  2. Mul G., Neeft J.P.A., Karteijn P., Moulijn J.A. The formation of carbon suurface oxygen complexes by oxygen and ozon. The effect of transition metal oxides // Carbon, 1998. Vol. 36. No 9. P. 1269-1276.
  3. Machida M., Murato Y., Kishikawa K., Ikeue K. On the reasons for high activity of CeO$_2$ catalyst for soot oxidation // Chem. of mater., 2008. Vol. 20. No 13. P. 4489-4494.
  4. Hasan M.A., Zaki M.I., Kumari K., Pasupulety L. Soot deep oxidation by molybdena and molybdates: a thermogravimetric investigation // Thermochim. Acta, 1998. Vol. 320. P. 23-32.
  5. Pruvos C., Lamonier J.F., Courcort D., Abi-Aad E.,Aboukaïs A. Effect of copper addition on the activity and selectivity of oxide catalyst in the combustion of carbon particulate // Stud. in Sur. Sci. and Cat., 2000. Vol. 130. P. 2159-2164.
  6. Craenenbroeck J.V., Andreeva D., Tabakova T., Werde K.V., Mullens J., Verpoort F. Spectroscopic Analysis of Au-V-based Catalysyts and Their Activity in the Catalytic Removal of Diesel Soot Particulates // J. of Cat., 2002. Vol. 209. P. 515-527.
  7. Peng X., Lin H., Shangguan W.,Huang Z. Physicochemical and catalytic properties of La0,8K0,2CuxMn1-xO3 for simultaneous removal of NOx and soot: effect of Cu substitution Amount and calcination temperature // Ind. Eng. Chem. Res., 2006. Vol. 45. No 26. P. 8822-8828.
  8. Ciambeli P., Palma V., Russo P., Vaccaro S. Redox properties of a TiO2 supported Cu-V-K-Cl catalysts in low temperature soot oxidation // J. of Mol. Cat. A: Chemical. 2003. Vol. 204-205. P. 673-681.
  9. Milt V.G., Querini C.A., Miró E.E. Thermal analysis of K(x)/La2O3, active calalysts for the abatement for diesel exhaust contaminants // Thermochim. Acta. 2003. Vol. 404. P. 177-186.
  10. Бокова М.Н. Горение сажи в присутствии Cu-Ce-Al-O катализатров. Роль озона как активирующего агента. Дис. … канд. хим. наук. М., 2004. 143 с.
  11. Лебухова Н.В., Карпович Н.Ф., Макаревич K.С., Чигрин П.Г. Каталитическое горение сажи в присутствии медно-молибдатных систем, полученных разными методами // Катализ в промышленности, 2008. №6. C. 35-42.
  12. Sen A., Pramarnik P. Low-temperature synthesis of nano-sized metal molybdate powders // Mater. Letters. 2001. Vol. 50. P. 287-294.
  13. Цыренова Г.Д., Солодовников С.Ф., Павлова Э.Т., Хайкина Е.Г., Солодовникова З.А. Фазообразование в системе Ag2MoO4-CuO-MoO3 и кристаллическая структура нового двойного молибдата Ag2Cu2(MoO4)3 // Журнал неорг. химии, 2009. Т. 54. №5. С. 802-809.

Downloads

Download data is not yet available.

Issue

Pages

42-45

Section

Article

Dates

Submitted

June 7, 2010

Accepted

June 8, 2010

Published

June 30, 2010

How to Cite

[1]
Karpovich, N.F., Lebukhova, N.V., Makarevich, K.S., Chigrin, P.G., Kirichenko, E.A., Catalytic soot combustion in presence of molybdates Li2Cu2-xAgx(MoO4)3. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2010, № 2, pp. 42–45.