TY - JOUR
T1 - The influence of suspension composition and deposition mode on the electrophoretic deposition of TiO2 nanoparticle agglomerates
AU - Dor, S.
AU - Rühle, S.
AU - Ofir, A.
AU - Adler, M.
AU - Grinis, L.
AU - Zaban, A.
N1 - Funding Information:
The work was supported by the European Unions Framework FP6, NACBO (Grant NMP3-2004-500802-2).
PY - 2009/6/15
Y1 - 2009/6/15
N2 - The rate of cathodic electrophoretic deposition (EPD) of TiO2 nanoparticle agglomerates and the density of the obtained films were measured as a function of the suspension composition, such as the particle concentration and the type of solvent. The difference in the dielectric constants of the solvents determines the ratio between ions and charged particles in the different suspensions and thus the deposition rate. We show that high quality mesoporous TiO2 films can be produced by EPD with a well controlled thickness. In the mesoporous films we observe a high particle density close to the substrate while further apart the particle density is very low resulting in films with a very high porosity. We show that this density profile is independent of the specific solvent or particle concentration used in the suspension.
AB - The rate of cathodic electrophoretic deposition (EPD) of TiO2 nanoparticle agglomerates and the density of the obtained films were measured as a function of the suspension composition, such as the particle concentration and the type of solvent. The difference in the dielectric constants of the solvents determines the ratio between ions and charged particles in the different suspensions and thus the deposition rate. We show that high quality mesoporous TiO2 films can be produced by EPD with a well controlled thickness. In the mesoporous films we observe a high particle density close to the substrate while further apart the particle density is very low resulting in films with a very high porosity. We show that this density profile is independent of the specific solvent or particle concentration used in the suspension.
KW - Binder free
KW - Controlled thickness
KW - Density gradient
KW - Electrophoretic deposition
KW - Mesoporous TiO
UR - http://www.scopus.com/inward/record.url?scp=65549098040&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2009.04.009
DO - 10.1016/j.colsurfa.2009.04.009
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
SN - 0927-7757
VL - 342
SP - 70
EP - 75
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
IS - 1-3
ER -