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Superb pseudocapacitance observed from eco-friendly multi-dimensional quaternary composite electrode based on Ce and Cu oxides and sulfides
Ceramics International ( IF 5.2 ) Pub Date : 2019-06-01 , DOI: 10.1016/j.ceramint.2019.02.092
Seong Ku Kim , Supakorn Pukird , Pitchanunt Chaiyo , Pakin Inchidjui , Garam Bae , Ha-Kyun Jung , Sun Sook Lee , Ki-Seok An

Abstract A multi-dimensional environmentally friendly quaternary composite electrode for pseudocapacitors is synthesized through a simple one-step hydrothermal method. The quaternary composite electrode consists of cerium oxide, cerium sulfides (Ce2S3 and CeS2), and cuprous oxide, all of which are based on non-toxic transition metal elements with good natural abundances. Investigation of the microstructures has revealed the formation of nanostructures of cerium oxide and cerium sulfides with high specific capacitances on relatively conductive cuprous oxide. Due to synergistic interaction between these oxides and sulfides, the quaternary electrode exhibits exceptionally high specific capacitances ranging up to 650 F g−1. In addition, great cyclic stability is observed during 1000 cycles of repeated charging and discharging at a constant current of 10 A g−1.

中文翻译:

从基于 Ce 和 Cu 氧化物和硫化物的环保多维四元复合电极观察到的极好的赝电容

摘要 通过简单的一步水热法合成了一种用于赝电容器的多维环保四元复合电极。四元复合电极由氧化铈、硫化铈(Ce2S3和CeS2)和氧化亚铜组成,它们均基于具有良好天然丰度的无毒过渡金属元素。对微观结构的研究表明,在相对导电的氧化亚铜上形成了具有高比电容的氧化铈和硫化铈纳米结构。由于这些氧化物和硫化物之间的协同相互作用,四元电极表现出异常高的比电容,范围高达 650 F g-1。此外,
更新日期:2019-06-01
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