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单词 electrolysis
释义
electrolysis

Physics
  • The production of a chemical reaction by passing an electric current through an electrolyte. In electrolysis, positive ions migrate to the cathode and negative ions to the anode.

    http://www.chemteam.info/Chem-History/Faraday-electrochem.html Faraday’s 1834 paper on electrical decomposition from Philosophical Transactions of the Royal Society


Chemistry
  • The production of a chemical reaction by passing an electric current through an electrolyte. In electrolysis, positive ions migrate to the cathode and negative ions to the anode. The reactions occurring depend on electron transfer at the electrodes and are therefore redox reactions. At the anode, negative ions in solution may lose electrons to form neutral species. Alternatively, atoms of the electrode can lose electrons and go into solution as positive ions. In either case the reaction is an oxidation. At the cathode, positive ions in solution can gain electrons to form neutral species. Thus cathode reactions are reductions.


Chemical Engineering
  • The removal of ions from a solution by the passage of electric current in which the solutions are separated in separate chambers by a semi-permeable membrane. It requires a source of direct current, which is conveyed to the electrolyte by electrodes. The electrode connected to the positive pole is called the anode; the electrode connected to the negative pole is called the cathode. The current enters the electrolyte by the anode and leaves by the cathode.


Electronics and Electrical Engineering
  • The production of chemical change, usually decomposition, when current flows through an electrolyte.


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