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首页> 外文期刊>RSC Advances >Facile one-pot synthesis of NiCo2Se4-rGO on Ni foam for high performance hybrid supercapacitors
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Facile one-pot synthesis of NiCo2Se4-rGO on Ni foam for high performance hybrid supercapacitors

机译：用于高性能混合超级电容器的镍泡沫上一锅法合成NiCo2Se4-rGO

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A facile, innovative synthesis for the fabrication of NiCo _(2) Se _(4) -rGO on a Ni foam nanocomposite via a simple hydrothermal reaction is proposed. The as-prepared NiCo _(2) Se _(4) -rGO@Ni foam electrode was tested through pxrd, TEM, SEM, and EDS to characterize the morphology and the purity of the material. The bimetallic electrode exhibited outstanding electrochemical performance with a high specific capacitance of 2038.55 F g ~(?1) at 1 A g ~(?1) . NiCo _(2) Se _(4) -rGO@Ni foam exhibits an extensive cycling stability after 1000 cycles by retaining 90% of its initial capacity. A superior energy density of 67.01 W h kg ~(?1) along with a high power density of 903.61 W kg ~(?1) further proved the high performance of this electrode towards hybrid supercapacitors. The excellent electrochemical performance of NiCo _(2) Se _(4) -rGO@Ni foam can be explained through the high electrocatalytic activity of NiCo _(2) Se _(4) in combination with reduced graphene oxide which increases conductivity and surface area of the electrode. This study proved that NiCo _(2) Se _(4) -rGO@Ni foam can be utilized as a high energy density-high power density electrode in energy storage applications.
机译：提出了一种通过简单的水热反应在Ni泡沫纳米复合材料上制备NiCo _（2）Se _（4）-rGO的简便创新方法。通过pxrd，TEM，SEM和EDS对制备的NiCo _（2）Se _（4）-rGO @ Ni泡沫电极进行了测试，以表征材料的形貌和纯度。双金属电极表现出出色的电化学性能，在1 A g〜（？1）时具有2038.55 F g〜（？1）的高比电容。 NiCo _（2）Se _（4）-rGO @ Ni泡沫通过保持其初始容量的90％，在1000次循环后显示出广泛的循环稳定性。 67.01 W h kg〜（？1）的优越能量密度以及903.61 W kg〜（？1）的高功率密度进一步证明了该电极对混合超级电容器的高性能。 NiCo _（2）Se _（4）-rGO @ Ni泡沫具有出色的电化学性能，可以通过NiCo _（2）Se _（4）的高电催化活性与还原的氧化石墨烯（可增加电导率和表面）相结合来解释电极的面积。这项研究证明，NiCo _（2）Se _（4）-rGO @ Ni泡沫塑料可以用作储能应用中的高能量密度-高功率密度电极。

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