羟基磷灰石-碳纳米管复合电极增强超级电容器性能

IF 2 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Mousumi Behera, Abin Philip, A. Ruban Kumar
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引用次数: 0

摘要

由于消费者对有效、可持续的能量存储系统的需求不断增加,对超级电容器电极材料的深入研究已经存在。目前的工作研究了羟基磷灰石-碳纳米管(HAp-CNT)复合电极的生产和分析研究,用于超级电容器的应用。化学沉淀法制备了HAp-CNT复合材料,并对其结构、形态和电化学性能进行了系统的研究。通过电化学测试,在10 mV/s下测得HAp - cnt复合材料的比电容值为133.012 F/g,优于纯HAp的31.125 F/g。该复合材料的能量密度为32.32 Wh/kg,功率密度为701.04 kW/kg,电荷转移电阻为11.27 Ω,等效串联电阻为16.96 Ω。将性能最好的电极用于制造原型超级电容器,并检查其储能可行性。与预循环结果相比,HAp-CNT原型超级电容器在3000次充放电循环后保持了100%以上的电容保持,同时提供了高达198.31 Wh/kg的能量密度和高达3250.54 kW/kg的功率密度。HAp和碳纳米管的结合使用创造了有效的性能增强,为HAp - cnt复合材料提供了新兴储能技术的令人兴奋的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Optimized Hydroxyapatite–Carbon Nanotube Composite Electrodes for Enhanced Supercapacitor Performance

Optimized Hydroxyapatite–Carbon Nanotube Composite Electrodes for Enhanced Supercapacitor Performance

Optimized Hydroxyapatite–Carbon Nanotube Composite Electrodes for Enhanced Supercapacitor Performance

Optimized Hydroxyapatite–Carbon Nanotube Composite Electrodes for Enhanced Supercapacitor Performance

Advanced research into electrode materials for supercapacitors exists because of increasing consumer demand for effective, sustainable energy storage systems. The current work examines the production and analytical investigation of hydroxyapatite–carbon nanotube (HAp–CNT) composite electrodes for superior supercapacitor applications. A chemical precipitation method produced the HAp–CNT composite material, and its structural, morphological, and electrochemical properties were systematically scrutinized. The HAp–CNT composite's specific capacitance value of 133.012 F/g measured at 10 mV/s through electrochemical tests showed superior results compared to pure HAp's value of 31.125 F/g. The composite showed an outstanding energy density of 32.32 Wh/kg coupled with a suitable power density of 701.04 kW/kg as well as low charge transfer resistance at 11.27 Ω and equivalent series resistance at 16.96 Ω. The best-performing electrode was used for the fabrication of a prototype supercapacitor and check its viability for energy storage. The HAp–CNT prototype supercapacitor maintained above 100% capacitance retention following 3000 charge–discharge cycles while delivering improved energy density up to 198.31 Wh/kg and power density up to 3250.54 kW/kg when compared to pre-cycling results. The combined use of HAp and CNTs creates an effective performance enhancement that provides the HAp–CNT composite with exciting potential for emerging energy storage technologies.

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来源期刊
ChemistrySelect
ChemistrySelect Chemistry-General Chemistry
CiteScore
3.30
自引率
4.80%
发文量
1809
审稿时长
1.6 months
期刊介绍: ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.
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