𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Influence of mercury on hydrogen overvoltage on solid metal electrodes—I. Stationary polarization curves of hydrogen deposition on pure and poisoned electrodes

✍ Scribed by J. Vondrák; J. Balej


Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
863 KB
Volume
15
Category
Article
ISSN
0013-4686

No coin nor oath required. For personal study only.

✦ Synopsis


Mercury deposited in amounts of the order of a few monolayers on Pt, Fe, Ni and Co raises the overvoltage of hydrogen evolution in alkaline solution. On Cr it deaeases and on MO it has little influence, but these metals corrode in alkali. the overvoltage R&mn&Le mercure deposal en quantit&s de l'ordre de quelques couches simples sur Pt, Fe, Ni et Co Cl&e la surtension de l%volution d'hydrogkne en solution alcaliue. Sur Cr, il diminue la surteusion et sur Mo il a peu d'influence, mais ces m&aux se corrodent en solutions alcalines. Zusammenfass~-Die Wasserstoffiiberspannung an Pt, Fe, Ni und Co in alkalischer Lasung wird durch in einigen Monoschichten abgeschiedenes Quecksilber erhtiht. Bei Cr wird die Uberspannung verringert, und bei MO ist der Einfluss gering, diese Mctalle korrodieren jedoch in alkalischer LBsung.


📜 SIMILAR VOLUMES


Influence of mercury on hydrogen overvol
✍ J. Vondrák; J. Balej 📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 830 KB

The removal of mercury from smooth mercury poisoned platinum electrodes by means of simultaneous hydrogen evolution is described. It is caused by volatility of mercury and its evaporation into the stream of electrolytically discharged hydrogen. The kinetic equation for this process is derived and li