A dual-doped strategy to enhance the electrochemical performances of electropolymerized polyaniline electrodes for flexible energy storage
A dual-doped strategy to enhance the electrochemical performances of electropolymerized polyaniline electrodes for flexible energy storage
复制标题
双掺杂策略提高电聚合聚苯胺电极的电化学性能，用于柔性储能
DOI：
10.1016/j.matchemphys.2019.122259
复制
发表时间：
2020-01
期刊：
影响因子：
--
通讯作者：
H. J. Zhai
中科院分区：
文献类型：
--
作者：
H. H. Zhou;L. Y. Hou;W. Y. Zhang;H. J. Zhai
我们设计了一种简单的双掺杂策略来提高聚苯胺（PANi）电极的超级电容性能。具体而言，通过电化学聚合制备双掺杂PANi（DD-PANi）电极，在此过程中，磷酸和盐酸同时充当掺杂剂。电化学测量表明DD-PANi电极相对于单掺杂PANi电极（即，磷酸掺杂的PANi和盐酸掺杂的PANi电极）。这种改善可以归因于这样一个事实，即双掺杂策略改变了电聚合聚苯胺膜的形貌和粗糙度，从而导致增加的电活性表面积和短的电子/离子传输路径。所得DD-PANi电极在0.5 mA cm-2下表现出382.1 mF cm-2的高面电容，以及理想的循环性能（在5000次循环后保持初始电容的91.2%）。此外，我们还探索了DD-PANi电极用于高性能柔性固态超级电容器的可行性。使用DD-PANi电极组装的超级电容器具有高的机械柔性，良好的电化学电容性能和上级的长期稳定性（包括变形稳定性和电化学稳定性），这确保了其在柔性储能器件中的应用潜力。
We have designed a simple dual-doped strategy to boost the supercapacitive properties of polyaniline (PANi) electrodes. Specifically, dual-doped PANi (DD-PANi) electrodes are prepared via electrochemical polymerization, during which phosphoric acid and hydrochloric acid serve as dopants simultaneously. Electrochemical measurements indicate that the DD-PANi electrodes exhibit substantially improved electrochemical properties with respect to single-doped PANi electrodes (i.e., phosphoric acid-doped PANi and hydrochloric acid-doped PANi electrodes). This improvement can be attributed to the fact that dual-doped strategy changes the morphology and roughness of electropolymerized PANi films, thus leading to increased electroactive surface area and short pathway for electron/ion transport. The resultant DD-PANi electrodes exhibit high areal capacitance of 382.1 mF cm−2at 0.5 mA cm−2, as well as ideal cycling performance (retaining 91.2% of initial capacitance after 5000 cycles). Furthermore, we have explored the feasibility of DD-PANi electrodes for high performance flexible solid-state supercapacitors. The assembled supercapacitor using DD-PANi electrodes features high mechanical flexibility, good electrochemical capacitive properties, and superior long-term stability (including deformation stability and electrochemical stability), which ensure its potential for applications in flexible energy storage devices.
登录
查看更多内容
水热直接合成聚苯胺、石墨烯/聚苯胺和氮掺杂石墨烯/聚苯胺水凝胶用于高性能柔性超级电容器
影响因子：
11.9
作者：
Yubo Zou;Zhicheng Zhang;Wenbin Zhong;Wantai Yang
通讯作者：
Wantai Yang
影响因子：
6.6
作者：
D. V. Zhuzhel’skii;E. G. Tolstopjatova;S. Eliseeva;A. Ivanov;S. Miao;V. Kondratiev
通讯作者：
D. V. Zhuzhel’skii;E. G. Tolstopjatova;S. Eliseeva;A. Ivanov;S. Miao;V. Kondratiev
DOI：
10.3390/nano5021034
发表时间：
2015-06-11
期刊：
Nanomaterials (Basel, Switzerland)
影响因子：
--
作者：
Liu D;Wang X;Deng J;Zhou C;Guo J;Liu P
通讯作者：
Liu P
用于高性能超级电容器的分层纳米结构α-Fe2O3/聚苯胺阳极
影响因子：
6.6
作者：
杨兆昆;汤力;叶瑾;施冬健;刘士荣;陈明清
通讯作者：
陈明清
影响因子：
14
作者：
Green, Rylie A.;Lovell, Nigel H.;Poole-Warren, Laura A.
通讯作者：
Poole-Warren, Laura A.