ダウンロード数: 284
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
j.colsurfa.2012.09.056.pdf | 397.45 kB | Adobe PDF | 見る/開く |
タイトル: | Charged colloidal system: Small ion distribution and effective interaction |
著者: | Ikeda, Ichiro Matsumoto, Mitsuhiro |
著者名の別形: | 松本, 充弘 |
キーワード: | Charged colloid Molecular dynamics simulation Effective charge Effective potential Many-body effect |
発行日: | 5-Jan-2014 |
出版者: | Elsevier B.V. |
誌名: | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
巻: | 440 |
開始ページ: | 34 |
終了ページ: | 41 |
抄録: | We applied a molecular dynamics simulation technique to charged colloidal systems in order to investigate small ion distribution in thermal equilibrium and to evaluate the effective interaction among macroions. For a system containing a single macroion, screening by counterions was evaluated. The screening becomes more complete for larger macroion charge. In spite of the large inhomogeneity, the chemical potential of small ions is constant for the entire system. Using a thermodynamic integral method, the effective potential (Helmholtz free energy) for two-macroion systems was evaluated as a function of macroion separation distance, and found to be repulsive under normal conditions. Many-body effect is also discussed by comparing the effective potentials for two- and three-macroion systems. |
著作権等: | © 2012 Elsevier B.V. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/180110 |
DOI(出版社版): | 10.1016/j.colsurfa.2012.09.056 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。