Journal of Applied Electrochemistry
1572-8838
Cơ quản chủ quản: Springer Netherlands , SPRINGER
Lĩnh vực:
Materials ChemistryChemical Engineering (miscellaneous)Electrochemistry
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In situ evaluation of container corrosion in sodium — sulphur batteries
Tập 11 - Trang 103-110 - 1981
Recent improvements in container materials for Na/S cells (central sodium type) have led to greatly enhanced cell life and performance. Although problems with rapidly decreasing capacity are no longer observed, cells appear to exhibit a slowly increasing resistance with time. This paper describes anin situ technique for assessing the electrical stability of various container materials and determining the extent that corrosion processes influence cell resistance changes. Potentials within the sulphur electrodes of operating cells were measured over prolonged cycling times. Results indicate that chromized steel possesses excellent electrical stability compared to 347 stainless steel and that container corrosion accounts for only a fraction of the increase in total cell resistance.
Interfacial behaviour of various liquid electrode/β″-alumina systems
Tập 11 - Trang 685-689 - 1981
Three different liquid electrode/sodiumβ″-alumina interfaces were investigated. The NaNO3/β″-alumina interface displays ohmic behaviour although the resistance is somewhat larger than expected. The sodium/β″-alumina interface exhibits asymmetric resistance with respect to d.c. current flow. Cyclic voltammetry results suggest that a Na2O film is being modified electrochemically during the sweeps. When a sodium amalgam electrode is utilized, the film, if it is present, has very little effect. The asymmetric resistance is not observed and there is good agreement between d.c. and a.c. resistances after only a small amount of sodium deposition.
Multifunctional catalysts toward methanol oxidation in direct methanol fuel cell
Tập 45 Số 5 - Trang 439-451 - 2015
A novel electrochemical method for visual detection of surface inclusions in metallic substrates
Tập 13 - Trang 689-692 - 1983
An electrochemical method is presented for fast and non-destructive detection of surface inclusions in metals and alloys. Using electrode modification techniques, the sample surface is coated with a dark layer; the non-conductive inclusions remain uncoated and thus appear bright and highly visible. The new technique is demonstrated on different alloys with simulated and real inclusions.
Determination of transport and electrochemical kinetic parameters of M-H electrodes
Tập 26 Số 6 - Trang 603-611 - 1996
P.K. Datta and J.S. Burnell-Gray, Advances in Surface Engineering (Volumes I, II and III).
Tập 30 - Trang 1191-1191 - 2000