Supercritical hydrothermal synthesis and in situ organic modification of indium tin oxide nanoparticles using continuous-flow reaction system |
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Authors: | Lu Jinfeng Minami Kimitaka Takami Seiichi Shibata Masatoshi Kaneko Yasunobu Adschiri Tadafumi |
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Affiliation: | Advanced Institute for Materials Research, WPI, Tohoku University. |
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Abstract: | ITO nanoparticles were synthesized hydrothermally and surface modified in supercritical water using a continuous flow reaction system. The organic modification of the nanoparticles converted the surface from hydrophilic to hydrophobic, making the modified nanoparticles easily dispersible in organic solvent. The addition of a surface modifier into the reaction system impacted the crystal growth and particle size as well as dispersion. The particle size was 18 nm. Highly crystalline cubic ITO with a narrow particle size distribution was obtained. The advantages of short reaction time and the use of a continuous reaction system make this method suitable for industrial scale synthesis. |
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