Effect of the Titanium Nanoparticle on the Quantum Chemical Characterization of the Liquid Sodium Nanofluid
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- Ai Suzuki
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Patrick Bonnaud
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Mark C. Williams
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Parasuraman Selvam
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Nobutoshi Aoki
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Masayuki Miyano
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Akira Miyamoto
- New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10, Aramaki, Aoba ku, Sendai 980-8579, Japan
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- Jun-ichi Saito
- Japan Atomic Energy Agency (JAEA), 4002 Narita, Oarai-machi, Ibaraki 311-1393, Japan
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- Kuniaki Ara
- Japan Atomic Energy Agency (JAEA), 4002 Narita, Oarai-machi, Ibaraki 311-1393, Japan
書誌事項
- 公開日
- 2016-03-31
- 資源種別
- journal article
- DOI
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- 10.1021/acs.jpcb.5b11461
- 公開者
- American Chemical Society (ACS)
この論文をさがす
説明
Suspension state of a titanium nanoparticle in the liquid sodium was quantum chemically characterized by comparing physical characteristics, viz., electronic state, viscosity, and surface tension, with those of liquid sodium. The exterior titanium atoms on the topmost facet of the nanoparticle were found to constitute a stable Na-Ti layer, and the Brownian motion of a titanium nanoparticle could be seen in tandem with the surrounding sodium atoms. An electrochemical gradient due to the differences in electronegativity of both titanium and sodium causes electron flow from liquid sodium atoms to a titanium nanoparticle, Ti + Na → Ti(δ-) + Na(δ+), making the exothermic reaction possible. In other words, the titanium nanoparticle takes a role as electron-reservoir by withdrawing free electrons from sodium atoms and makes liquid sodium electropositive. The remaining electrons in the liquid sodium still make Na-Na bonds and become more stabilized. With increasing size of the titanium nanoparticle, the deeper electrostatic potential, the steeper electric field, and the larger Debye atmosphere are created in the electric double layer shell. Owing to electropositive sodium-to-sodium electrostatic repulsion between the external shells, naked titanium nanoparticles cannot approach each other, thus preventing the agglomeration.
収録刊行物
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- The Journal of Physical Chemistry B
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The Journal of Physical Chemistry B 120 (14), 3527-3539, 2016-03-31
American Chemical Society (ACS)
