Hierarchical Configuration of NiCo2S4 Nanotube@Ni-Mn Layered Double Hydroxide Arrays/Three-Dimensional Graphene Sponge as Electrode Materials for High-Capacitance Supercapacitors

被引：211
|
作者：
Wan, Houzhao [1 ,2 ]
Liu, Jia [1 ]
Ruan, Yunjun [1 ]
Lv, Lin [1 ]
Peng, Lu [1 ]
Ji, Xiao [1 ]
Miao, Ling [1 ]
Jiang, Jianjun [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
[2] Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 29期
基金：
中国国家自然科学基金;
关键词：
NiCo2S4; nanotube array; graphene; supercapaitor; three-dimensional; ALL-SOLID-STATE; HIGH-PERFORMANCE SUPERCAPACITOR; MICRO-SUPERCAPACITORS; NANOSHEET ARRAYS; NANOROD ARRAYS; HIGH-POWER; NETWORKS; CO3O4; NANOSTRUCTURES; FABRICATION;
D O I：
10.1021/acsami.5b03042
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Three dimensional (3D) hierarchical network configurations are composed of NiCo2S4 nanotube @Ni-Mn layered double hydroxide (LDH) arrays in situ grown on graphene sponge. The 3D graphene sponge with robust hierarchical porosity suitable for as a basal growth has been obtained from a colloidal dispersion of graphene oxide using a simple directional freeze-drying technique. The high conductive NiCo2S4 nanotube arrays grown on 3D graphene shows excellent pseudocapacity and good conductive support for high-performance Ni-Mn LDH. The 3D NiCo2S4@Ni-Mn LDH/GS shows a high specific capacitance (C-sp) 1740 mF cm(-2) at 1 mA cm(-2), even at 10 mA cm(-2), 1267.9 mF cm(-2) maintained. This high-performance composite electrode proposes a new and feasible general pathway as 3D electrode configuration for energy storage devices.
引用
收藏
页码：15840 / 15847
页数：8
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