Optimized synthetic route for reduced graphene oxide-decorated Cu0.33Co0.67Se2 nanorods on Ni foam integrated with N, S co-doped porous carbon to design high-performance hybrid supercapacitor electrodes

被引：14

作者：

Qu, Xiaoxiao ^{[1
]}

Jeon, Sangheon ^{[2
]}

Jeong, Jeonghwa ^{[2
]}

Kang, Weiwei ^{[1
]}

Xing, Baolin ^{[1
]}

Zhang, Chuanxiang ^{[1
,3
,4
]}

Hong, Suck Won ^{[2
,5
]}

机构：

[1] Henan Polytech Univ, Coll Chem & Chem Engn, Jiaozuo 454000, Peoples R China

[2] Pusan Natl Univ, Dept Cognomechatron Engn, Dept Opt & Mechatron Engn, Busan 46241, South Korea

[3] State Collaborat Innovat Ctr Coal Work Safety & Cl, Jiaozuo 454003, Peoples R China

[4] Henan Key Lab Coal Green Convers, Jiaozuo 454003, Peoples R China

[5] Pusan Natl Univ, Engn Res Ctr Color Modulated Extrasensory Percept, Busan 46241, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 966卷

基金：

新加坡国家研究基金会;

关键词：

Selenide; Reduced graphene oxide; Porous carbon; Hybrid supercapacitor; GRAPHITE; DYNAMICS; CHINA;

D O I：

10.1016/j.jallcom.2023.171421

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

As advanced energy storage devices for commercial applications, hybrid supercapacitors (HSCs) assembled with electric double-layer capacitive- and battery-type electrodes combine the advantages of electric double-layer capacitors and batteries. Thus, it offers very high potential as well as higher energy density with sufficient durability than other energy storage devices. However, the selection of electrodes has a considerable determining effect on the performance of HSCs. Here, we developed an electrode material system for HSCs with copper-cobalt selenide composite on Ni foam with the assistance of carbon nanomaterial (reduced graphene oxide, rGO). The synergistic effects of Cu0.33Co0.67Se2 loaded with rGO led to excellent electrochemical performance with respect to a unique structure. Moreover, we synthesized N, S co-doped glucose-based porous carbon (NSPC) as an anode that exhibited stable electrochemical properties with interconnected networks. The configured HSCs (i.e., Cu0.33Co0.67Se2-rGO//NSPC) represented a wide voltage window (-1.6 V) and a superior energy density (-41.5 Wh kg- 1) at a power density of -801.5 W kg-1 that exhibited their inherent advantageous characteristics and combinatorial effects. Therefore, the efficient synergistic effects and superior electrochemical performances were optimized with appropriate ratios of the anode and cathode in the integrated system, which demonstrated high energy density and excellent structural stability.

引用

页数：12