Abstract Rare earth metal (La) doped aurivillius structured bismuth molybdate (Bi2MoO6: La) has been prepared by a single pot microwave-assisted combustion method. The characteristics of the bare Bi2MoO6 and Bi2MoO6: La catalysts have been analyzed systematically using different characterization techniques. The crystalline phase purity of the nanostructures has been analyzed by PXRD and Rietveld refinement technique with an average crystallite size approximately 28 nm (Bi2MoO6) and 25 nm (Bi2MoO6: La). The surface morphologies have been nanoplatelets for both samples. The Bi2MoO6: La structure ensures maximum capacitance of 662.8 F g−1 at 5 mVs−1. Also, they performed good cyclic stability of 87.4% over 2000 cycles with a current density of 5 mA cm−2. The prepared active material serves as a novel negative electrode material for supercapacitors.

中文翻译：

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钼酸铋纳米复合材料的稳健一步合成：一种有前途的高端超级电容器负极

摘要 采用单锅微波辅助燃烧法制备了稀土金属(La)掺杂的金银结构钼酸铋(Bi2MoO6:La)。使用不同的表征技术系统地分析了裸 Bi2MoO6 和 Bi2MoO6:La 催化剂的特性。通过 PXRD 和 Rietveld 精修技术分析了纳米结构的结晶相纯度，平均晶粒尺寸约为 28 nm (Bi2MoO6) 和 25 nm (Bi2MoO6: La)。两个样品的表面形态都是纳米血小板。Bi2MoO6: La 结构确保在 5 mVs-1 时的最大电容为 662.8 F g-1。此外，它们在 5 mA cm-2 的电流密度下在 2000 次循环中表现出 87.4% 的良好循环稳定性。制备的活性材料可用作超级电容器的新型负极材料。