Search results
Results from the WOW.Com Content Network
Pourbaix diagram of iron. [1] The Y axis corresponds to voltage potential. In electrochemistry, and more generally in solution chemistry, a Pourbaix diagram, also known as a potential/pH diagram, E H –pH diagram or a pE/pH diagram, is a plot of possible thermodynamically stable phases (i.e., at chemical equilibrium) of an aqueous electrochemical system.
Platinum and gold can be ... can be read in detail from the Pourbaix diagrams of the considered ... of metals, Springer, doi:10.1007/978-3-319 ...
Pourbaix Diagrams are thermodynamic charts constructed using the Nernst equation and visualize the relationship between possible phases of a system, bounded by lines representing the reactions that transport between them. They can be read much like a phase diagram. In 1963, Pourbaix produced "Atlas of Electrochemical Equilibria", which contains ...
The and pH of a solution are related by the Nernst equation as commonly represented by a Pourbaix diagram (– pH plot). For a half cell equation, conventionally written as a reduction reaction (i.e., electrons accepted by an oxidant on the left side):
The platinum-group metals [a] (PGMs) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). [1] The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum.
English: Pourbaix diagram of vanadium. Date: 22 September 2007 (original upload date) Vectorized 2013-10-12 15:15:48: Source: Own work Al-Kharafi, F. M.; Badawy, W. A ...
Extractive metallurgy is a branch of metallurgical engineering wherein process and methods of extraction of metals from their natural mineral deposits are studied. The field is a materials science, covering all aspects of the types of ore, washing, concentration, separation, chemical processes and extraction of pure metal and their alloying to suit various applications, sometimes for direct ...
is the partial pressure of the hydrogen gas, in bar (1 bar = 10 5 Pa) R is the universal gas constant: 8.3144 J⋅K −1 ⋅mol −1 (rounded here to 4 decimal) T is the absolute temperature, in kelvin (at 25 °C: 298.15 K) F is the Faraday constant (the charge per mole of electrons), equal to 96,485.3 coulomb·mol −1