✦ LIBER ✦

The role of single-phase free convection in mass transfer at gas evolving electrodes—II. Experimental verification

✍ Scribed by H. Vogt

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 462 KB
Volume: 38
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(93)80080-j

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✦ Synopsis

Ahstrati-An equation for single-phase mass transfer at gas evolving electrodes derived in part I of this paper [ElectroAm. Acta 38, 1421 (1993).] is tested in comparison with experimental data for ions transferred to the electrode and for dissolved gas transferred from the electrode. The agreement between experiment and theory not only shows the reliability of the new equation but evidences the action of a hitherto disregarded mass transfer mechanism effective in a low current density range in absence of forced flow.

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✍ H. Vogt 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 578 KB

Ah&act-The catalogue of known mass transfer mechanisms acting at gas evolving electrodes has to be extended by a mechanism which has obviously been ignored so far. Under certain conditions, free convection owing to density gradients within the liquid phase (single-phase convection) exerts the contro