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铝/氟比对改性尖晶石锰酸锂性能的影响（Influence of the n(Al)∶n(F) Ratio on Performance of Modified LiMn2O4 Materials）
尖晶石LiMn2O4 锂离子电池 高温固相反应
2010/8/18
采用草酸铝、氟化锂与尖晶石LiMn2O4进行高温固相反应，制备出改性尖晶石LiMn2O4材料。对材料进行了XRD、SEM分析及电性能测试，结果表明，改性材料均基本保持了尖晶石主体结构，晶格常数随n(Al)∶n(F)比例的增大而减小;Al3+、F-的引入可以引起材料颗粒表面形貌的变化，产生规则结晶，而颗粒表面结晶的大小受n(Al)
The Influence of Transition Metal Ions on the Kinetics of Ascorbic Acid Oxidation by Methylene Blue in Strongly Acidic Media
The Influence of Transition Metal Ions the Kinetics of Ascorbic Acid Oxidation Methylene Blue
2010/4/22
The kinetics of the oxidation of L-ascorbic acid (H2 A) by methylene blue was investigated in strongly acidic media over the temperature range 22-40 oC. The kinetic studies were carried out as a funct...