塔菲尔方程
过电位
X射线光电子能谱
纳米结构
化学工程
析氧
扫描电子显微镜
复合数
材料科学
电化学
透射电子显微镜
化学
纳米技术
电极
复合材料
物理化学
工程类
作者
Mengya Yang,Weiwei Zhu,Ruiqing Zhao,Huan Wang,Tian‐Nan Ye,Yi Liu,Dongming Yan
标识
DOI:10.1016/j.jssc.2020.121456
摘要
In this work, the hollow spherical Co2[email protected] composite with micro-nanostructure has been successfully obtained through phosphating the cobalt-based metal-organic framework (MOF), which was prepared by solvothermal method. The MOF-derived Co2[email protected] hollow spheres are characterized by power X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Electrochemical measurements show that Co2[email protected] has a good performance with an overpotential of 328 mV for oxygen evolution reaction (OER) at a current density of 10 mA cm−2 and a Tafel slope of only 57 mV dec−1. In addition, it is found that the composite has a minimum charge transfer resistance and a high long-term stability in alkaline solution.
科研通智能强力驱动
Strongly Powered by AbleSci AI