中文关键词:Co-Al双金属硫化物水热法 多孔结构超级电容性能 英文关键词:Ni-Al binary sulfide, Hydrothermal method, Porous structure, Supercapacitance performance 基金项目:

作者	单位	E-mail
冯晓娟	河西学院化学化工学院 甘肃省高校河西走廊特色资源利用省级重点实验室 张掖 734000	cherry-820@163.com
石彦龙	河西学院化学化工学院 甘肃省高校河西走廊特色资源利用省级重点实验室 张掖 734000
李永燕	河西学院化学化工学院 甘肃省高校河西走廊特色资源利用省级重点实验室 张掖 734000
李素元	河西学院化学化工学院 甘肃省高校河西走廊特色资源利用省级重点实验室 张掖 734000

摘要点击次数:1959 全文下载次数:0 中文摘要: 采用低成本的两步水热法直接将Co-Al双金属硫化物生长在泡沫镍上,成功制备了CoAl₂S₄/Ni电极材料,利用X射线衍射(XRD)、扫描电镜(SEM)和电化学测试等手段对其结构、形貌和超级电容性能进行了表征。结果表明,CoAl₂S₄/Ni电极材料呈现花瓣状的三维多孔结构,且表面粗糙,这种结构有利于电解液和电极材料的充分接触,具有良好的导电性和比电容性能；当电流密度为1A/g时,电极的放电比容量高达2187.1 F/g, 循环100次后比电容的保持率为90.1%,相关研究为超级电容器电极材料的制备及性能研究提供思路。 英文摘要: The binary Ni-Al sulfide with petal-like structure was grown directly on Ni foams via a low cost two-step hydrothermal method. The CoAl₂S₄/Ni electrode materials were successfully prepared. The structure and surface morphology were characterized by X-ray diffraction analysis, field emission scanning electron microscopy (FESEM), respectively. The results show that the CoAl₂S₄/Ni electrode materials own amorphous porous structure and rough surface with high conductivity, capacitance and transport rate for electrolyte ions and electrons. The specific capacitance of the electrode can reach 2187.1 F/g under current density of 1A g_-1. It displayed good electrochemical stability with 96.28% of the initial capacitance over consecutive 100 cycles. The researches are expected to provide a reference for the fabrication of supercapacitor electrode materials and its properties of electrochemistry. Keywords Ni-Al binary sulfide, Hydrothermal method, Porous structure, Supercapacitance performance 查看全文查看/发表评论下载PDF阅读器 相关附件：版权转让声明书尊敬的编辑您好.docx -->