نتایج جستجو برای: limn2o4
تعداد نتایج: 298 فیلتر نتایج به سال:
Nickel and sulfur doped lithium manganese spinels with a nominal composition of LiMn2-xNixO4-ySy (0.1 ≤ x ≤ 0.5 and y = 0.01) were synthesized by a xerogel-type sol-gel method followed by subsequent calcinations at 300 and 650 °C in air. The samples were investigated in terms of physicochemical properties using X-ray powder diffraction (XRD), transmission electron microscopy (EDS-TEM), N₂ adsor...
PVP functionalized metal oxide coatings on spinel nanoparticles demonstrated significantly improved rate characteristics under extensive cycling at 65 degrees C and exhibited over 100% improved capacity retention compared to the bare counterpart.
LiMn(2)O(4-y)Br(y) nanoparticles were synthesized successfully for the first time by a room temperature solid-state coordination method. X-ray diffractometry patterns indicated that the LiMn(2)O(4-y)Br(y) powders were well-crystallized pure spinel phase. Transmission electron microscopy images showed that the LiMn(2)O(4-y)Br(y) powders consisted of small and uniform nanosized particles. Synthes...
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