COMPOSITIONS, ELECTRODES, METHODS AND SYSTEMS FOR WATER ELECTROLYSIS AND OTHER ELECTROCHEMICAL TECHNIQUES

摘要

Compositions, electrodes, systems, and/or methods for water electrolysis and other electrochemical techniques are provided. In some cases, the compositions, electrodes, systems, and/or methods are for electrolysis which can be used for energy storage, particularly in the area of energy conversion, and/or production of oxygen, hydrogen, and/or oxygen and/or hydrogen containing species. In some embodiments, the water for electrolysis comprises at least one impurity and/or at least one additive which has little or no substantial effect on the performance of the electrode. In some embodiments, specific compositions of molybdenum, zinc, and nickel are provided, which may be used as a catalytic material (e.g., for oxidizing and/or forming hydrogen gas). In some arrangements, systems are provided which comprise a first electrode comprising cobalt and/or nickel ions and anionic species comprising phosphorus and/or boron, and a second electrode comprising nickel and molybdenum.