Purification of Pt-Loaded Carbon Nanoparticles by Dielectrophoresis
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- Sano Noriaki
- Department of Chemical Engineering, Kyoto University
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- Iwasaki Yosuke
- Department of Chemical Engineering, Kyoto University
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- Tamon Hajime
- Department of Chemical Engineering, Kyoto University
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抄録
It is generally difficult to selectively capture specific nanoparticles from particle mixtures by conventional separation methods, for example, sedimentation and filtration. In the present study, carbon nanoparticles having an average diameter of 27 nm loaded with Pt nanoparticles having an average diameter of 1.9 nm were separated from their mixture with pristine carbon nanoparticles. For the particle-separation experiments, the Pt-loaded carbon nanoparticle (Pt-CNP) was prepared from commercial carbon black by loading Pt from a H2PtCl6 aqueous solution. The electrodes used for dielectropheresis (DEP) separation were fabricated by photolithography, and the target particle mixture was dispersed in ethanol. It was found that the Pt-CNP was purified by the present DEP separation. The influences of the electrode motion speed, the amplitude and the frequency of AC voltage applied on the electrodes, the duration to apply voltage in liquid, and the addition of a surfactant were investigated. It was found that there were optimized values in these operation parameters to achieve a high purification factor reaching approximately 92%, and the reasons of these influences were qualitatively discussed.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 47 (6), 471-477, 2014
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204567844992
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- NII論文ID
- 130004145822
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- NII書誌ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 025602227
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可