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外文期刊>Journal of the Ceramic Society of Japan
>Thermal behavior, mineral phase, and microstructure characteristics of Na2Mn3O7 synthesized from MnO2 and MnCl2 via a low-cost, simple conventional mixing method
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Thermal behavior, mineral phase, and microstructure characteristics of Na2Mn3O7 synthesized from MnO2 and MnCl2 via a low-cost, simple conventional mixing method
Sodium manganese oxide plays an important role in the cathode application of sodium ion batteries. In this study, sodium manganese oxide Na 2 Mn 3 O 7 (NMO) with a triclinic structure was successfully synthesized via a low-cost, simple conventional mixing method. NaMnO materials were synthesized by mixing Na 2 CO 3 precursors and the two different types of Mn precursors, namely MnO 2 by a solid method (the sample C) and MnCl 2 by a sol–gel method (the Sample D). The calcination of both samples was carried out at 800 °C for 3 h. The results shown that the thermal behavior and crystal characteristics of the Sample D are slightly better than another one. Nevertheless, the Sample C exhibits a better microstructure, showing rod-like particles more dominant than particular particles. In addition, the Sample C reveals a little bit larger surface area than the Sample D.
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机译:锰氧化钠在钠离子电池的阴极应用中起重要作用。在该研究中,通过低成本,简单的常规混合方法成功地合成了具有三级结构的氧化钠Na 2mN 3 O 7(NMO)。通过将Na 2 CO 3前体和两种不同类型的Mn前体,即通过固体方法(样品C)和MnCl 2通过溶胶 - 凝胶法(样品D)来合成NamNo材料。两个样品的煅烧在800℃下进行3小时。结果表明,样品D的热行为和晶体特性略好于另一个。然而,样品C表现出更好的微观结构,显示比特定颗粒更优势的棒状颗粒。此外,样品C显示比样品D更大的表面积略大。
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