Phase diagram of manganese oxides
نویسندگان
چکیده
منابع مشابه
Pourbaix-like phase diagram for lithium manganese spinels in acid
Calculations are performed on the free energies for proton-promoted reactions of the lithium-ionbattery electrode material LiMn2O4 spinel in acid, as a function of lithium excess and lithium deficiency relative to stoichiometry. In particular, we consider the dissolution reaction proposed by Hunter (J. Solid State Chem., 1981, 39, 142), in which protons react with lithium manganate spinel to fo...
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متن کاملConfigurational electronic entropy and the phase diagram of mixed-valence oxides: the case of LixFePO4.
We demonstrate that configurational electronic entropy, previously neglected, in ab initio thermodynamics of materials can qualitatively modify the finite-temperature phase stability of mixed-valence oxides. While transformations from low-T ordered or immiscible states are almost always driven by configurational disorder (i.e., random occupation of lattice sites by multiple species), in FePO4-L...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1998
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.58.11583