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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Partial current ： ウィキペディア英語版 Partial current In electrochemistry, partial current is defined as the electric current associated with (anodic or cathodic) half of the electrode reaction. Depending on the electrode half-reaction, one can distinguish two types of partial current: * cathodic partial current ''Ic'' (called also cathodic current): is the flow of electrons from the electrode surface to a species in solution; * anodic partial current ''Ia'' (called also anodic current): is the flow of electrons into the electrode from a species in solution. The cathodic and anodic partial currents are defined by IUPAC.〔http://goldbook.iupac.org/P04407.html〕 The partial current densities (''ic'' and ''ia'') are the ratios of partial currents respect to the electrode areas (''Ac'' and ''Aa''): :''ic = Ic/Ac'' :''ia = Ia/Aa'' The sum of the cathodic partial current density ''ic'' (positive) and the anodic partial current density ''ia'' (negative) gives the net current density ''i'':〔(Electrochemistry Dictionary and Encyclopedia )〕 :''i = ic + ia'' In the case of the cathodic partial current density being equal to the anodic partial current density (for example, in a corrosion process〔B. Elsener, (''Corrosion and durability of metals'' ) , p. 252.〕), the net current density on the electrode is zero:〔 :''ieq = ic,eq + ia,eq = 0'' When more than one reaction occur on an electrode simultaneously, then the total electrode current can be expressed as:〔 :$I\; =\; \backslash Sigma\; I\_\; +\; \backslash Sigma\; I\_$ where the index ''i'' refers to the particular reactions. ==Notes== 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Partial current」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.