Investigation of microstructures of ZnCo_2O_4 on bare Ni foam and Ni foam coated with graphene and their supercapacitors performance

作     者：Jinlong Lv Tongxiang Liang Meng Yang Suzuki Ken Miura Hideo 

作者机构：Fracture and Reliability Research InstituteSchool of EngineeringTohoku University School of Materials Science and EngineeringJiangxi University of Science and Technology 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2017年第26卷第3期

页      面：330-335页

核心收录：

学科分类：081702[工学-化学工艺] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

主　　题：Ni foam Graphene Supercapacitive Surface analysis Hydrothermal 

摘      要：The graphene coating was deposited on the surface of Ni foam using the chemical vapor deposition process. A large amount of flower-like ZnCoOmicrospheres with short nanowires were formed on bare Ni foam by hydrothermal method, while large-scale ZnCoOnanowires arrays homogeneously aligned and separated adequately on Ni foam coated with graphene. This ZnCoOnanowire structure exhibited superior supercapacitors properties. The excellent supercapacitors were mainly attributed to the large specific surface and the porosity on the nanowires which promoted the electrons and ions transportation. In addition, graphene improved conductivity of substrate for current collecting.