期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 12, 期 7, 页码 5898-5909出版社
ESG
DOI: 10.20964/2017.07.04
关键词
MnCO3; urea hydrolysis; electrode materials; supercapacitors
资金
- National Natural Science Foundation of China [61474011, 41672292, 51604044, 51574048]
- State Key Laboratory of Coal Mine Disaster Dynamics and Control [2011DA105287-FW201504]
- Chongqing science and technology commission [cstc2015jcyjA90011]
- International S&T Cooperation Projects of Chongqing [CSTC2013gjhz90001]
- Fundamental Research Funds for the Central Universities [106112016CDJZR245518, 106112016CDJZR135506]
Rhombohedral MnCO3 nanoparticles were successfully grown on nickel foam via a facile and one-pot water-bath means, wherein the hydrolyzation of urea supplied alkali and carbonate ions. The structure and morphology of the nanocomposites were investigated by XRD, FIB/SEM and elemental mapping. Microscopic investigations revealed MnCO3 particles with mean sizes that varied from 110-255 nm. EDS mapping showed a homogeneous distribution of manganese, carbon and oxygen. The electrochemical properties of the produced composites were estimated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) measurements using 6 M KOH as the electrolyte. The resulting electrodes displayed maximum specific capacitance (163.7 F g(-1) at 0.5 A g(-1)), respectable rate capability, and excellent long-term cycling life (91% retention after 1000 cycles). In addition, this manuscript offers us a simple and rapid strategy for the fabrication of electrode materials for use as energy storage devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据