Sol-Gel Synthesis and Characterization of Nanocrystalline Spinel LiMn<sub>2</sub>O<sub>4</sub> For Battery Applications

Y. B. R. D. Rajesh; R. S. Dubey

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Sol-Gel Synthesis and Characterization of Nanocrystalline Spinel LiMn₂O₄ For Battery Applications

机译：电池用纳米尖晶石LiMn _{2 O _{4 的溶胶-凝胶法合成及表征}}

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Nanocrystalline spinel LiMn₂O₄ was synthesized by sol-gel method using aqueous solution of metal acetates (LiOAc?H₂O, Mn(CH₃COO)₂.4H₂O) and citric acid as chelating agent. X-ray diffraction measurement showed the peaks at 2θ values corresponding to (111), (311), (222), (400), (331) and (440) planes of cubic spinel LiMn₂O₄ nanoparticles with average size ~25 nm. FT IR shows all the characteristic peaks of the cubic spinel. TG/DTA measurement showed the weight loss between 100-250℃ and 300-500℃ which correspond the endothermic and exothermic processes. An exothermic peak observed at around 400℃ is due to the thermal decomposition of the ingredients to form LiMn₂O₄. FE-SEM measurement revealed the formation of small polycrystalline particles of almost spherical morphology with size between 20-30 nm.

机译：溶胶-凝胶法用乙酸金属锂（LiOAc？H _{2 O，Mn（CH _{3 COO）_{2 .4H _{2 O）和柠檬酸作为螯合剂。 X射线衍射测量表明在2θ值处的峰对应于立方尖晶石LiMn _{2 O的（111），（311），（222），（400），（331）和（440）平面_{4 纳米粒子，平均粒径约为25 nm。 FT IR显示了立方尖晶石的所有特征峰。 TG / DTA测量表明，失重在100-250℃至300-500℃之间，与吸热和放热过程相对应。在400℃左右观察到放热峰是由于成分的热分解形成LiMn _{2 O _{4 。 FE-SEM测量表明，形成的多晶小颗粒几乎呈球形，尺寸在20-30 nm之间。}}}}}}}}

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《Nanoscience and Nanoengineering》 |2013年第3期|共3页
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Y. B. R. D. Rajesh; R. S. Dubey;
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入库时间 2022-08-18 11:57:07

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2. Synthesis and characterization of spinel LiMn_2-xNi_xO_4for lithium/polymer battery applications [J] . Yang-Kook Sun, Dong-Won Kim, Young-Min Choi Journal of Power Sources . 1999,第2期

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3. Nanocrystalline lithium-manganese oxide spinels for Li-ion batteries - Sol-gel synthesis and characterization of their structure and selected physical properties [J] . Michalska M., Lipińska L., Mirkowska M., Solid state ionics . 2011,第1期

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4. Sol-Gel Synthesis and Characterization of Normal Spinel LiMn2O4 [C] . International symposium on solid state chemistry in China amp; 8th Chinese national conference on solid state chemistry and inorganic synthesis : Book of abstracts . 2002

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5. Synthesis and Characterization of Nanocrystalline Nickel-Zinc Spinel Ferrite Thin Films Using the Spin-Spray Deposition Method [D] . Ray, Nicole M. 2013

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6. Facile one step synthesis method of spinel LiMn2O4 cathode material for lithium batteries [O] . Ahmed M. Hashem, Somia M. Abbas, Xu Hou, 2019

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7. Sol-Gel Synthesis and Characterization of Nanocrystalline Spinel LiMn₂O₄ For Battery Applications [O] . Y. B. R. D. Rajesh, R. S. Dubey 2013

机译：用于电池应用的溶胶 - 凝胶合成和纳米晶尖晶石LiMn _{2 O _{4 的鉴别}}

Sol-Gel Synthesis and Characterization of Nanocrystalline Spinel LiMn2O4 For Battery Applications

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Sol-Gel Synthesis and Characterization of Nanocrystalline Spinel LiMn₂O₄ For Battery Applications