Oxygen nonstoichiometry of spinel LiMn2O4 − δ
✍ Scribed by Jun Sugiyama; Taroh Atsumi; Tatsumi Hioki; Shoji Noda; Naoki Kamegashira
- Book ID
- 116160911
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 581 KB
- Volume
- 235
- Category
- Article
- ISSN
- 0925-8388
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Lithium manganese spinel Li 1 ؉ y Mn 2 ؊ y O 4 (0.04y40.07) synthesized by the sol+gel process is studied with a focus on the e4ects of the changes of formation conditions which can sensibly determine the mean crystallite size from a few nanometers to several hundred nanometers. Changes of stoichiom
The nonstoichiometry of spinel ferrite (Mg x Fe 1؊x ) 3؊ O 4 has been measured as a function of oxygen activity (a O2 ) and Mg content (x) at 1000°C via coulometric titration. For a given Mg content, the nonstoichiometry varies with the oxygen activity as O2 , indicating metal vacancies at high a O