Surface Charged Zirconia Nanoparticles prepared by

Article pubs.acs.org/Langmuir

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Surface-Charged Zirconia Nanoparticles Prepared by Organophosphorus Surface Functionalization with Ammonium or Sulfonate Groups Charlotte Heinrich,†,‡ Lucas Niedner,† Bastian Oberhausen,† and Guido Kickelbick*,† †

Saarland University, Inorganic Solid State Chemistry, Campus Building C4 1, 66123 Saarbrücken, Germany

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ABSTRACT: Organophosphorus coupling agents bearing permanently charged functional groups (either cationic quaternary ammonium or anionic sulfonates) were synthesized and used for the modification of zirconia nanoparticles with a diameter