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Atsushi Muramatsu
Researcher at Tohoku University
Publications - 226
Citations - 5714
Atsushi Muramatsu is an academic researcher from Tohoku University. The author has contributed to research in topics: Catalysis & Nanoparticle. The author has an hindex of 38, co-authored 218 publications receiving 5221 citations. Previous affiliations of Atsushi Muramatsu include Aichi Gakuin University & University of Bayreuth.
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Synthesis of uniform anatase TiO2 nanoparticles by gel-sol method. 3. Formation process and size control.
TL;DR: A significant reduction in the nucleation rate of the anatase TiO(2) with increasing pH is revealed, as is explained by the reduction of the concentration of a precursor complex, Ti(OH)(3)(+), and the adsorption of hydroxide ion onto the embryos of TiO (2).
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Synthesis of uniform anatase TiO2 nanoparticles by gel–sol method: 4. Shape control
TL;DR: Sodium oleate and sodium stearate were found to modify the particle shape from round-cornered cubes to sharp-edged cubes, and the mechanism was explained in terms of the reduction of the specific surface energies of the [001] and [100] planes of the tetragonal crystal system by the preferential adsorption ofOleate or stearates ion onto these planes, based on the Adsorption experiment using ellipsoidal and cubic particles.
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Formation Mechanism of Monodisperse Pseudocubic α-Fe2O3 Particles from Condensed Ferric Hydroxide Gel
TL;DR: The formation mechanism of the monodisperse pseudocubic hematite particles obtained in large quantities by aging a highly condensed ferric hydroxide gel at 100°C has been studied in this paper.
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Synthesis of uniform anatase TiO2 nanoparticles by gel-sol method: 1. Solution chemistry of Ti(OH)(4-n)+n complexes
TL;DR: The mole fractions of hydroxo complexes of titanium(IV) ion in an aqueous solution with 0.10 mol dm(-3) NaClO4 at 25 degrees C have been determined as a function of pH by a newly developed analytical procedure based on UV spectrophotometry.
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Systematic control of size, shape and internal structure of monodisperse α-Fe2O3 particles
TL;DR: The size, shape, and internal structure of monodisperse hematite (α-Fe2O3) particles have been controlled systematically on the basis of the gel-sol method recently developed as discussed by the authors.