(Van ‘t Hoff Laboratory for Physical and Colloid Chemistry, Utrecht - Lekkerkerker)
Hexagonal gibbsite platelets
Gibbsite
Particle size:
150 - 225 nm diameter, 7 - 10 nm thick up to 600 nm diameter in seeded growth, 40 nm thick
Surface properties:
Charge stabilized in water Sterically stabilized in toluene (covered with PIB)
Solvent:
H2O, toluene
Typical concentration after preparation:
5 - 8 g/L
Typical time needed to prepare:
3 weeks
References:
Kooij, F. van der et al., J. Phys.
Chem. B, 102, (1998), 7829-7832
Wijnhoven, J.E.G.J., J. Colloid
Interf. Sci., (2005), accepted for publication | 
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Gibbsite covered with silica
Particle size:
SiO2 layer thickness 4 – 30 nm
Surface properties:
Charge stabilized
Solvent:
Mixture of ethanol, water and ammonia
Typical concentration after preparation:
1 g/L
Typical time needed to prepare:
3 days (starting from bare gibbsite)
References:
Wijnhoven J.E.G.J., Chem.
Mater., 16, (2004), 3821-3828 | 
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Fluorescent gibbsite
Particle size:
Dyed layer thickness 7 – 30 nm
Surface properties:
Charge stabilized
Solvent:
Mixture of ethanol, water and ammonia or DMF
Typical concentration after preparation:
1 g/L
Typical time needed to prepare:
5 days (starting from bare gibbsite)
References:
Vonk, C. et al., J. Colloid Interf.
Sci., 278, (2005), 521-525 | 
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