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Study of the slow electrolyte-induced changes in the TiO2 hydrosol structure

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Abstract

Slow changes in the TiO2 hydrosol structure induced by a small KCl additive were studied using the small-angle X-ray scattering. The initial sol of anisometric anatase nanocrystals stabilized by HCl was prepared. After addition of KCl scattering curves were measured regularly for 2 years. It was established the formation and the accumulation of small dense aggregates. A model of the slow structural changes in the TiO2 sols with electrolyte additives comprising the two steps of aggregation was proposed. At first the larger anatase nanocrystals combine slowly forming the small dense aggregates through the oriented attachment mechanism. Then, at the critical size of such aggregates, they coagulate quickly forming the looser particles.

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References

  1. Burnside SD, Shklover V, Barbe C et al (1998) Chem Mater 10:2419

    Article  CAS  Google Scholar 

  2. Chemseddine A, Moritz T (1999) Eur J Inorg Chem 2:235

    Article  Google Scholar 

  3. Bokhimi X, Morales A, Optiz E et al (2004) J Sol-Gel Sci Technol 29:31

    Article  CAS  Google Scholar 

  4. Chen Y, He X, Zhao X et al (2007) J Colloid Interface Sci 310:171

    Article  CAS  Google Scholar 

  5. Liu F, Yang M, Meyer GJ (2005) In: Sakka S (ed) Handbook of sol-gel science and technology: processing, characterization and applications, vol II, Kluwer Academic Publishers, Boston, p 399

  6. Pavlova-Verevkina OB, Shevchuk YA, Nazarov VV (2003) Colloid J 65(4):474

    Article  CAS  Google Scholar 

  7. Pavlova-Verevkina OB, Chvalun SN, Politova ED et al (2005) J Sol-Gel Sci Technol 35:91

    Article  CAS  Google Scholar 

  8. Pavlova-Verevkina OB, Ozerina LA, Nazarov VV, Surin NM (2007) Colloid J 69(4):492

    Article  CAS  Google Scholar 

  9. Feigin LA, Svergun DI (1987) Structure analysis by small-angle x-ray scattering and neutron scattering. Plenum Press, New York

    Google Scholar 

  10. Svergun DI (1991) J Appl Crystallogr 24:485

    Article  CAS  Google Scholar 

  11. Svergun DI (1992) J Appl Crystallogr 25:495

    Article  Google Scholar 

  12. Guinier A (1939) Ann Phys 12:161

    CAS  Google Scholar 

  13. Porod G (1952) Kolloidn zh 125(51):109

    Google Scholar 

  14. Golubko NV, Yanovskaya MI, Romm IP, Ozerin AN (2001) J Sol-Gel Sci Technol 20:245

    Article  CAS  Google Scholar 

  15. Glatter O, Kratky O (eds) (1982) Small angle X-ray scattering. Academic Press, New York, p 175–178

  16. Penn RL, Banfield JF (1998) Science 281:969

    Article  CAS  Google Scholar 

  17. Niederberger M, Cőlfen H (2006) Phys Chem Chem Phys 8:3271

    Article  CAS  Google Scholar 

Download references

Acknowledgment

The work was supported by the Russian Foundation for Basic Research (Project No. 06-03-32237).

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Authors and Affiliations

  1. Karpov Institute of Physical Chemistry, Vorontsovo Pole St. 10, Moscow, 105064, Russia

    Olga B. Pavlova-Verevkina, Ludmila A. Ozerina & Sergei N. Chvalun

  2. Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya St. 70, Moscow, 117393, Russia

    Nikolay M. Surin & Alexander N. Ozerin

Authors
  1. Olga B. Pavlova-Verevkina
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  2. Ludmila A. Ozerina
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  3. Sergei N. Chvalun
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  4. Nikolay M. Surin
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  5. Alexander N. Ozerin
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Correspondence to Olga B. Pavlova-Verevkina.

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Pavlova-Verevkina, O.B., Ozerina, L.A., Chvalun, S.N. et al. Study of the slow electrolyte-induced changes in the TiO2 hydrosol structure. J Sol-Gel Sci Technol 45, 219–224 (2008). https://doi.org/10.1007/s10971-007-1658-z

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  • DOI: https://doi.org/10.1007/s10971-007-1658-z

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