Dow-Huron cell

Dow-Huron cell — Electrochemical cell for hydrogen peroxide production. A diaphragm-divided cell employing a carbon chips-PTFE composite as cathode material fed with air. At the anode oxygen is developed at, e.g., a platinized titanium electrode. 

The major application of porous, three-dimensional electrodes has been in metal removal from dilute process liquors (Chapter 7) although inorganic and organic dectrosynthesis applications continue to be explored (see, for example, the Dow-Huron cell for production in Chapter S). Many battery and l el cell electrodes utilize an active material which is (or is supported by) a porous, three-dimensional matrix (Chapter 11), while miniature porous electrodes have found use in electrochemical detector systems for high-pressure liquid chromatography analysis (Chapter 12). 

Fig, 5.13 A diaphragm controlledt trickle-llow, packcd-bed cell for hydrogen perOKide production, (a) The unit cetl. (b] The composite chip particles which constitute the packed-bed cathode (active area < 3 g (Courtesy Dow Chemical Co, and Huron Chcmicats.)... 

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