Abstract

A Sb-Sb₂O₅@P@C composite was synthesized using a two-step high-energy mechanical milling (HEMM) method using metal antimony, red phosphorus, and carbon as raw materials. XPS, XRD, and Raman spectroscopy clearly showed that the Sb was partially oxidized to become Sb₂O₅ during the milling process and that some of the red phosphorus was converted to black phosphorus. A specific capacitance of 109.7 F g⁻¹ was achieved at a current density of 0.5 mA cm^-2 in the obtained Sb-Sb₂O₅@P@C composite, and the packaged supercapacitor prepared with the Sb-Sb₂O₅@P@C composite was found to maintain a capacitance retention of 77.3% after 5000 cycles at a current density of 2 A g⁻¹. This study therefore provides a possible direction for the selection of electrode materials the perform well for application in supercapacitors.

中文翻译：

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Sb-Sb 2 O 5 @ P @ C复合材料的简便合成及其在超级电容器中的应用研究

摘要

以金属锑，红磷和碳为原料，采用两步高能机械磨（HEMM）法合成了Sb-Sb ₂ O ₅ @ P @ C复合材料。XPS，XRD和拉曼光谱清楚地表明，在研磨过程中，Sb被部分氧化为Sb ₂ O ₅，并且一些红磷转化为黑磷。在所获得的Sb-Sb ₂ O ₅ @ P @ C复合材料中，在0.5 mA cm ^-2的电流密度下，获得了109.7 F g ^-1的比电容，并且利用该Sb-Sb ₂ O ₅制备了封装的超级电容器发现@ P @ C复合材料在2 A g ^-1的电流密度下经过5000次循环后可保持77.3％的电容保持率。因此，这项研究为选择适合超级电容器的电极材料提供了可能的方向。