Open AccessPrecipitation Process Optimization Research on Zinc-Based Electrode Materials Synthesis
Author(s) -
Jianhai Wang,
Yunjie Yang,
Yue Yu,
Shaomin Zhu,
Bing Xu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/774/1/012095
Subject(s) - supercapacitor , electrode , materials science , zinc hydroxide , capacitance , zinc , hydrothermal circulation , chemical engineering , hydroxide , catalysis , precipitation , inorganic chemistry , hydrothermal synthesis , chemistry , metallurgy , organic chemistry , physics , meteorology , engineering
Optimization of electrode material is one of the most important measures to improve the performance of supercapacitors. Layered double hydroxide electrode materials supported by foam Ni were synthesized by in situ hydrothermal synthesis with CO(NH 2 ) 2 /NaOH/Na 2 CO 3 as precipitants and inorganic Zn(II) and Al(III) as precursors. The catalytic layer is composed of Zn 6 Al 2 (OH) 16 CO 3 ·4H 2 O and Zn 4 (OH) 6 CO 3 ·H 2 O. Specific capacitance of the electrode materials can reach as high as 1259 F g −1 at 1.0 A g −1 . Urea in precipitants optimized the composition, structure, and properties of the electrode materials. These encouraging results make these low-cost and eco-friendly materials promising for supercapacitor applications.