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Hierarchical NiCo2S4 nanostructure as highly efficient electrode material for high-performance supercapacitor applications
Journal of Energy Storage ( IF 8.9 ) Pub Date : 2020-06-22 , DOI: 10.1016/j.est.2020.101619
Dasha Kumar Kulurumotlakatla , Anil Kumar Yedluri , Hee-Je Kim

This present study reported the synthesis of a high specific capacity supercapacitors (SCs) carrying a unique porous Ni foam substrate with a novel NiCo2S4 electrode by a simplistic hydrothermal technique. Considered on the physical profile properties, the architecture of NiCo2S4 material delivered abundant electroactive sites, rapid discharge/charge transport and bettermost electrical conduciveness, which provide rise to improved electrochemical performance for better-scale SCs. Meanwhile, the electrochemical profile properties of the as-grown NiCo2S4 material clearly showed a battery-profile redox reaction, which has been distinct from the characterization of carbon-based source products. The battery-profile NiCo2S4 sample gained notable electrochemical performance activities, namely marvelous SCs performance with a excellent specific capacity of ~154.13 mA h g−1 at 2 A g−1, higher rate capabilities with ~92.5% of capacity retention at 15 A g−1, and interested cycling performance with ~95.2% of capacity retention at 4 A g−1 after 5000 long-cycles. Therefore, regarding this achieved results, the as-constructed NiCo3S4 was a notable efficient profile for SCs candidate and will have an effectively serving in different advanced energy storage devices.



中文翻译:

NiCo 2 S 4分层纳米结构作为高性能超级电容器应用的高效电极材料

本研究报道了通过简单的水热技术合成的高比容量超级电容器(SCs),该电容器具有独特的多孔Ni泡沫基材和新型NiCo 2 S 4电极。考虑到物理轮廓特性,NiCo 2 S 4材料的结构提供了丰富的电活性位,快速的放电/电荷传输和最佳的电导率,从而为更大规模的SC提供了改进的电化学性能。同时,NiCo 2 S 4的电化学分布特性该材料清楚地显示出电池特性的氧化还原反应,这与碳基原料的表征不同。具有电池特性的NiCo 2 S 4样品具有显着的电化学性能,即出色的SC性能,在2 A g -1下具有约154.13 mA hg -1的出色比容量,在15时容量保持率高达92.5%的情况下具有更高的倍率性能a g -1,感兴趣的循环性能,经过5000个长循环后,在4 A g -1下的容量保持率为〜95.2%。因此,关于该获得的结果,构造的NiCo 3 S 4 对于SC候选人而言,这是一个显着的高效配置文件,并将在不同的先进储能设备中有效地发挥作用。

更新日期:2020-06-22
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