2-aminoanthraquinone anchored on N-doped reduced graphene oxide for symmetric supercapacitor with boosting energy density

被引:20
作者
Zhang, Weiyang [1 ]
Liu, Huili [1 ]
Kang, Hongwei [1 ,2 ]
Zhang, Shouren [1 ]
Yang, Baocheng [1 ]
Li, Zhikun [1 ]
机构
[1] Huanghe Sci & Technol Coll, Inst Nanostruct Funct Mat, Henan Key Lab Nanocomposite & Applicat, Zhengzhou City Key Lab Supercapacitor, Zhengzhou 450006, Peoples R China
[2] Fuyang Normal Univ, Engn Res Ctr Biomass Convers & Pollut Prevent Anhu, Sch Chem & Mat Engn, Fuyang 236037, Peoples R China
基金
中国国家自然科学基金;
关键词
2-aminoanthraquinone; N-doped graphene; Excellent performances; Energy density; Supercapacitor; HIGH-PERFORMANCE ELECTRODE; NITROGEN; CAPACITANCE; AEROGELS;
D O I
10.1016/j.electacta.2023.142194
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Redox-active organic materials with the advantages of light weight, flexibility, and low-cost are promising alternatives to high-performance green energy storage devices due to their high theoretical capacitance and availability from renewable resources. Therefore, in this paper, we successfully synthesized a novel 2-aminoan-thraquinone (AAQ) organic molecules non-covalent anchored on N-doped reduced graphene oxide nano-composites (N-RGO@AAQ) by a simple improved solvothermal method. Mainly benefiting from the enhanced ion/electron transport kinetics, the introduction of pseudocapacitance, and the stable nanostructure that facilitate fast ion intercalation and de-intercalation, the synthesized N-RGO@AAQ nanocomposite exhibits excellent electrochemical performances as an electrode material. A satisfactory high specific capacity of 532.48 C g1 at 0.6 A g(-1) and excellent rate capability (60.42%) from 0.6 to 60 A g(-1) are achieved. Moreover, the assembled symmetrical supercapacitor device (SSD) assembled by using N-RGO@AAQ electrode delivers a maximum energy density of 21.13 W h kg(-1) at a power density of 750 W kg(-1) and an outstanding ultra-long cycling durability (maintain 94.67% of the initial capacity after 18 000 cycles at 30 mV s_1). This study provides a strategy and a potential electrode material for the development and application of green energy storage devices with high-performance.
引用
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页数:12
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