超级电容器
材料科学
纳米棒
复合数
电容
聚苯胺
电化学
化学工程
三元运算
电极
热液循环
纳米技术
复合材料
化学
聚合物
工程类
物理化学
聚合
程序设计语言
计算机科学
作者
Caichao Zhu,Ying He,Yijun Liu,Natalia E. Kazantseva,Petr Sáha,Qilin Cheng
标识
DOI:10.1016/j.jechem.2018.11.006
摘要
Hierarchical [email protected] framework @polyaniline ([email protected]@PANI) core-shell nanorod arrays on carbon cloth has been fabricated by combining electrodeposition and hydrothermal method. Well-ordered ZnO nanorods not only act as a scaffold for growth of MOF/PANI shell but also as Zn source for the formation of MOF. The morphology of [email protected]@PANI composite is greatly influenced by the number of PANI electrodeposition cycles. Their structural and electrochemical properties were characterized with different techniques. The results indicate that the [email protected]@PANI with 13 CV cycles of PANI deposition demonstrates the maximum specific capacitance of 340.7 F g−1 at 1.0 A g−1, good rate capability with 84.3% capacitance retention from 1.0 to 10 A g−1 and excellent cycling life of 82.5% capacitance retention after 5000 cycles at high current density of 2.0 A g−1. This optimized core-shell nanoarchitecture endows the composite electrode with short ion diffusion pathway, rapid ion/electron transfer and high utilization of active materials, which thus result in excellent electrochemical performance of the ternary composite.
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