Stability of copper molybdate catalysts for purification of diesel exhausts

Authors

  • Lebukhova N.V. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Российская Федерация
  • Rudnev V.S. Institute of Chemistry, Far East Branch of Russian Academy of Science, Vladivostok, Российская Федерация
  • Kirichenko E.A. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Российская Федерация
  • Chigrin P.G. Institute of Materials Science, Khabarovsk Scientific Center, Far-Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Российская Федерация
  • Lukiyanchuk I.V. Institute of Chemistry, Far East Branch of Russian Academy of Science, Vladivostok, Российская Федерация

UDC

541.128.3+66.048.6

Abstract

One of the main concerns for environmental protection is a controlling the emission of soot particles from diesel engines. Earlier we have shown that CuMoO4 is active catalyst for soot combustion. In this work the research of mechanical, thermal and chemical stability of the copper molybdate catalytic coating on the titanium support is presented. Plasma electrolytic oxidation (PEO) technique and impregnation of a colloidal TiO2 suspension were used for preparation of oxide films on titanium surface. The copper molybdate catalyst was deposited by an extraction-pyrolytic method on PEO-coating and by sol-gel process on the TiO2 layer from colloidal suspension. The CuMoO4 phase grains with diameter less 0,5 μm were obtained using these methods. Coatings showed an excellent adherence when subjected to an ultrasonic test. An activity of the structured catalysts was characterized before and after five catalytic cycles up to 600 °C and a heating at 400 °C in flow of reactionary gases (SO2, Н2О), which are always present in diesel exhaust. The results have shown that developed catalysts provide diesel soot combustion above 280 °С, possess high thermal stability and are not subject to inhibitory action of gas SO2 and water vapor.

Keywords:

copper molybdate, catalytic soot combustion, adhesion, thermal stability

Acknowledgement

Работа выполнена при поддержке проекта ДВО РАН (12-I-П8-17).

Author Infos

Natalya V. Lebukhova

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

e-mail: lnv1@yandex.ru

Vladimir S. Rudnev

д-р хим. наук, заведующий лабораторией плазменно-электролитических процессов Института химии Дальневосточного отделения РАН

e-mail: rudnevvs@ich.dvo.ru

Evgeniy A. Kirichenko

старший инженер Института материаловедения Хабаровского научного центра Дальневосточного отделения РАН

e-mail: himicc@mail.ru

Pavel G. Chigrin

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

e-mail: pavel_ch@gorodok.net

Irina V. Lukiyanchuk

канд. хим. наук, страший научный сотрудник Института химии Дальневосточного отделения РАН

e-mail: lukiyanchuk@ich.dvo.ru

References

  1. Krylov O.V., Tret'jakov V.F. Kataliticheskaja ochistka vyhlopnyh gazov avtomobil'nogo transporta [Catalytic purification of exhaust gases of motor transport]. Kataliz v promyshlennosti [Catalysis in industry], 2007, no. 4, pp. 44-49. (In Russian)
  2. Anciferov V.N., Ostroushko A.A., Makarov A.M. Sintez, svojstva i primenenie katalizatorov okislenija sazhi na osnove modificirovannyh vysokoporistyh jacheistyh materialov [Synthesis, properties and applications of soot oxidation catalysts based on modified highly porous cellular materials]. Ekaterinburg: UrO RAN Publ., 2007, 63 p. (In Russian)
  3. Fino D., Fino P., Saracco G., Specchia V. Innovative means for the catalytic regeneration of particulate traps for diesel exhaust cleaning. Chemical Engineering Science, 2003, vol. 58, pp. 951-958.
  4. Cauda E., Hernandez S., Fino D., Saracco G., Specchia V.P. Emissions during diesel trap regeneration. Environ. Sci. Technol, 2006, vol. 40, pp. 5532-5537.
  5. Lebuhova N.V., Chigrin P.G., Ustinov A.Ju. Strukturnye prevrashhenija SuMoO4 v processe kataliticheskogo okislenija ugleroda [Structural transformations SuMoO4 in the catalytic oxidation of carbon]. Kinetika i kataliz [Kinetics and catalysis], 2013, vol. 54, no. 1, pp. 79-84. (In Russian)
  6. Chigrin P.G. Kinetika i mehanizm kataliticheskogo okislenija ugleroda v prisutstvii medno-molibdatnyh sistem. Avtoref. dis. … kand. him. nauk. [Kinetics and mechanism of the catalytic oxidation of carbon in the presence of copper molybdate systems. Cand. chem. sci. diss.]. Vladivostok, 2012. 21 p. (In Russian)
  7. Lebuhova N.V., Rudnev V.S., Chigrin P.G., Lukijanchuk I.V., Ustinov A.Ju., Makarevich K.S. Kompozicii CuMoO4/TiO2 + SiO2/Ti dlja kataliticheskogo dozhiga dizel'noj sazhi [Composition CuMoO4/TiO2 + SiO2/Ti catalytic afterburner diesel soot]. Himicheskaja tehnologija [Chemical technology], 2010, no. 12, pp. 740-746. (In Russian)
  8. Rudnev V.S. Mnogofaznye anodnye sloi i perspektivy ih primenenija [Multiphase anode layers and prospects of their application]. Zashhita metallov [Protection of metals], 2008, vol. 44, no. 3, pp. 283-292. (In Russian)
  9. Hol'kin A.I., Patrusheva T.N. Jekstrakcionno-piroliticheskij metod. Poluchenie funkcional'nyh oksidnyh materialov [Extraction-pyrolytic method. Preparation of functional oxide materials]. Moscow, KomKniga Publ., 2006, 288 p. (In Russian)
  10. Ostroushko A.A., Mogil'nikov Ju.V., Ostroushko I.P. Sintez slozhnyh oksidov, vkljuchajushhih molibden, vanadij, iz polimerno-solevyh associatov [Synthesis of the complex oxides comprising molybdenum, vanadium, polymer-salt of associates]. Neorganicheskie materialy [Inorganic materials], 2000, vol. 36, no. 12, pp. 1490-1497. (In Russian)
  11. Chen X., Mao S.S. Titanium dioxide nanomaterials: synthesis, properties, modifications and applications. Chemical Reviews, 2007, vol. 107, pp. 2891-2959.
  12. Banus E.D., Ulla M.A., Mirу E.E., Milt V.G. Co, Ba, K/ZrO2 coated onto metallic foam (AISI 314) as a structured catalyst for soot combustion: Catalytic activity and stability. Applied Catal. A: General, 2011, vol. 393, pp. 9-16.
  13. Cebollada P.A.R., Bordejé E.G. Optimisation of physical properties of alumina coating microreactors used for the growth of a carbon nanofiber layer. Chem. Eng. J., 2009, vol. 149, pp. 447-454.

Downloads

Issue

2014. No. 2

Pages

44-50

Submitted

2014-04-29

Published

2014-06-17

How to Cite

Lebukhova N.V., Rudnev V.S., Kirichenko E.A., Chigrin P.G., Lukiyanchuk I.V. Stability of copper molybdate catalysts for purification of diesel exhausts. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2014, no. 2, pp. 44-50. (In Russian)

Copyright (c) 2014 Lebukhova N.V., Rudnev V.S., Kirichenko E.A., Chigrin P.G., Lukiyanchuk I.V.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.