大学院工学研究院

上川 直文

ウエカワ ナオフミ  (Naofumi Uekawa)

基本情報

所属
千葉大学 大学院工学研究院総合工学講座共生応用化学コース 教授
学位
博士(理学)

連絡先
uekawafauclty.chiba-u.jp
研究者番号
60282448
ORCID ID
 https://orcid.org/0000-0003-1572-9956
J-GLOBAL ID
200901076911408451
researchmap会員ID
1000222019

外部リンク

論文

 95

MISC

 66
  • Naofumi Uekawa
    Chemistry Letters 50(1) 87-95 2021年  
    Dialysis and peptization, which are colloid chemical solution processes, are simple and effective techniques for controlling hydrolysis of hydrated metal cations. These synthetic processes preparation of stable sol with dispersion of doped oxide nanoparticles with wide molar fraction range from metal chloride aqueous and glycol solutions. Furthermore, control and introduction of lattice defects can be possible due to low temperature synthesis below 373 K. Design of optical and electrical characteristics of oxide nanoparticles by the solutions processes can be realized by controlling the situation of doping and lattice defects.
  • 上川 直文
    Journal of the Society of Inorganic Materials, Japan : セッコウ・石灰・セメント・地球環境の科学 21(370) 183-188 2014年5月  
  • 高橋友希, 上川直文, 小島隆, 稲垣順一, 掛川一幸
    無機マテリアル学会学術講演会講演要旨集 123rd 2011年  
  • 上川 直文
    Journal of the Society of Inorganic Materials, Japan : セッコウ・石灰・セメント・地球環境の科学 15(337) 400-406 2008年11月1日  
  • 小島 隆, 鈴木 里英, 上川 直文, 掛川 一幸
    日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 115(1338) 160-164 2007年2月1日  
    Porous materials were prepared by stacking needle-like titania particles. The uniform, needle-like titania particles were synthesized by hydrothermal treatment of titanium hydroxide gel containing ethylenediamine. A seeding technique controlled the particle size of them. The obtained particles were dispersed in aqueous solutions with various pH values and vacuum-filtered to form bulk materials. Porous materials with uniform microstructure were obtained when the pH of the suspension was adjusted to the value suitable for generating electrostatic repulsion between dispersed titania particles. Changing the size of component particles also controlled the pore size of the porous titania.

共同研究・競争的資金等の研究課題

 11

産業財産権

 10