Department of Colloid Chemistry


Dept. Of Colloid Chemistry

Zoltán Király

zkiraly@chem.u-szeged.hu

Research Interest

Surfactants and Adsorption Calorimetry

  • Adsorption of surfactants and organic pollutants at solid/liquid interfaces. 
  • Adsorption (batch and HPLC methods) and isotherm microcalorimetry 

  • (immersion, titration and flow methods). 
  • Solids: Graphitised carbon, silica gel, controlled pore glass, clay minerals.
  • Solutes: cationic, anionic and nonionic surfactants; alcohol and phenol derivatives.
  • Surface modifications and XRD measurements of smectite clays. Intercalation and adsolubilization. 
  • Interfacial thermodynamics (Gibbs energy, enthalpy and entropy functions). 

Materials Science and Catalysis

  • Preparation of tranistion metal nanoparticles in liquid media and on solid supports 

  • (control of size and shape).
  • Metals: Pd, Pt, Pd/Pt, Rh.
  • Supports: layer-structured materials. Graphite, cationic and anionic clays 

  • (montmorillonite, hydrotalcite-type materials).
  • Characterization of transition metal catalysts (TEM, XRD, SAXS, PCS).
  • Calorimetric investigations of metal/hydrogen interactions (gas sorption calorimetry). 
  • Liquid-phase hydrogenation of alkenes and alkynes (activity and selectivities).

Previous Research Experience

  • Stability of Stöber silica particles in mixed solvent media (TEM, SAXS, PCS, low-shear rheology).
  • High-vacuum anionic polymerization. Diblock copolymers in organic solvents and in polymer melts 

  • (IR, NMR, PFGSE NMR). 
 

Z. Király Last modified September 2001.