Retgers, J. W., Zeitschrift fur Physikalische Chemie, 1891, vol. 8, p. 6 - 75
摘要:
DOI:
作为产物:
描述:
lithium permanganate trihydrate 以
neat (no solvent) 为溶剂,
生成 锂高锰酸盐
参考文献:
名称:
Zur Kenntnis von Oxyden A[MO4]:超 LiMnO4、KMnO4、RbMnO4、CsMnO4 sowie RbIO4 和 CsIO4。(- heißt eigentlich “Die Kristallstruktur von ...”?-)
摘要:
Diese Untersuchungen bestatigen erneut als notwendig, ausreichende Reinheit, Symmetrie und Abwesenheit typischer Baufehler der untersuchten Einkristalle vorausgesetzt, soll die Struktur eines Festkorpers charakterisiert de werdenk b) Mehrere Einkristalle mussen mit Filmdaten ausreichend charakterisiert sein;c) Erst der “quantitative” Vergleich von Kristallstrukturen einer chemischen Reihe wie A[MnO4]
Cathodic Behavior of Alkali Manganese Oxides from Permanganate
作者:Rongji Chen、M. Stanley Whittingham
DOI:10.1149/1.1837554
日期:1997.4.1
candidates for cathode materials in lithium secondary batteries, and a manganeseoxide that behaved like the layered LiCoCOsub2} would be a prime candidate for this application because of its high free-energy of reaction with lithium and relatively low cost. The reaction of potassium, sodium, and lithium permanganate in water at 170 C leads directly to potassium, sodium, and lithiummanganese dioxides
目前正在进行广泛的研究,以寻找锂二次电池正极材料的有希望的候选材料,并且行为类似于层状 LiCoCOsub 2} 的锰氧化物将是该应用的主要候选材料,因为它与锂的反应自由能高并且成本相对较低。钾、钠和高锰酸锂在 170 C 的水中反应直接生成钾、钠和锂二氧化锰,Asub y}MnO center_dot} nHsub 2}O,Rbar 3} m 菱形结构。这些脱水后的结晶层状结构通过嵌入机制容易且可逆地与锂反应。锂的容量是存在的碱离子的函数,较大的钾离子能最好地保持容量。
Nanostructured Lithium Manganese Oxide Cathodes Obtained by Reducing Lithium Permanganate with Methanol
作者:D. Im、A. Manthiram
DOI:10.1149/1.1490355
日期:——
Reduction of lithiumpermanganate with methanol in acetonitrile and acetonitrile-water media has been investigated to obtain nanocrystalline lithiummanganeseoxides. The products have been characterized by wet-chemical analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, and transmission electron microscopy. The samples synthesized in acetonitrile medium
Role of Local and Electronic Structural Changes with Partially Anion substitution Lithium Manganese Spinel Oxides on Their Electrochemical Properties: X-ray Absorption Spectroscopy Study
The electronic and local structures of partially anion-substituted lithium manganese spinel oxides as positive electrodes for lithium-ion batteries were investigated using X-ray absorption spectroscopy (XAS). LiMn1.8Li0.1Ni0.1O4−ηFη (η = 0, 0.018, 0.036, 0.055, 0.073, 0.110, 0.180) were synthesized by the reaction between LiMn1.8Li0.1Ni0.1O4 and NH4HF2. The shift of the absorption edge energy in the
使用X射线吸收光谱法(XAS)研究了部分阴离子取代的锂锰尖晶石氧化物作为锂离子电池的正极的电子结构和局部结构。的LiMn 1.8栗0.1镍0.1 ø 4- η ˚F η(η = 0,0.018,0.036,0.055,0.073,0.110,0.180)的LiMn通过之间的反应合成1.8栗0.1镍0.1 Ò 4和NH 4 HF 2。XANES光谱中吸收边能量的移动代表Mn离子的价态变化,并取代了低价阳离子作为Li+,镍2+,或F -的阴离子。通过EXAFS光谱可以观察到每种化合物的局部结构变化以及Jahn–Teller Mn 3+离子的量。所测试的电极的放电容量为在的LiMn顺序2 ö 4 >的LiMn 1.8栗0.1镍0.1 ø 4- η ˚F η( η = 0.036)>的LiMn 1.8栗0.1镍0.1 ø 4而循环性能是在顺序锰1.8锂0.1镍0.1 O含量4- η ˚F η( η
Synthesis of Hollandite‐Type Manganese Dioxide with H+ Form for Lithium Rechargeable Battery
A hollandite-type manganesedioxide (HolMO), without foreign metal cations (K[sup +], NH[sup +][sub 4], Na[sup +]) in the (2 [times] 2) tunnel, was prepared directly by reacting LiMnO[sub 4] with Mn(NO[sub 3])[sub 2] in an H[sub 2]SO[sub 4] acidic solution. The HolMO belonged to a body-centered tetragonal system (space group 14.m) and could be expressed by the formula H[sub 4x]Mn[sub 8[minus]x]O[sub
Nanostructured Lithium Manganese Oxide Cathodes Obtained by a Reduction of Aqueous Lithium Permanganate with Hydrogen
作者:D. Im、A. Manthiram
DOI:10.1149/1.1570820
日期:——
Nanostructuredlithiummanganeseoxides have been synthesized by reducing aqueous lithiumpermanganate with hydrogen gas at 60°C in the presence and absence of lithium hydroxide followed by firing in vacuum at 250°C. The oxides have been characterized by wet-chemical analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and