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The role of water activity in the competition between anodic decomposition and stabilization of the GaP/Fe2+ electrode

✍ Scribed by K. Strubbe; H.H. Goossens; W.P. Gomes

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
893 KB
Volume
37
Category
Article
ISSN
0013-4686

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✦ Synopsis

By rotating nng-dlsk expenments, the competition was studled between the anodlc decomposition of the GaP electrode and the stablhzatlon of this electrode by ferrous Ions m aqueous electrolytes ~th and wlthout 4 M LlCl added From the results, it follows that a different compehtlon mechanism 1s operatmg m the two media, leadmg to a substantial improvement of the stablhzatlon m the presence of 4 M LKJl These effects are attnbuted to the decreased water actlvlty m the 4 M LlCl solution, causing a shift m the eqmhbnum of a surface chemical reaction step of the multxqmvalent anodx decomposltlon reaction

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