Synthesis of polyaniline nanoparticles deposited on two-dimensional titanium carbide for high-performance supercapacitors
Synthesis of polyaniline nanoparticles deposited on two-dimensional titanium carbide for high-performance supercapacitors
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DOI：
10.1016/j.matlet.2017.11.060
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发表时间：
2018-03
影响因子：
3
通讯作者：
Ying Ren;Jianfeng Zhu;Lei Wang;Hui Liu;L. Yi;Wenling Wu;Fen Wang
中科院分区：
文献类型：
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作者：
Ying Ren;Jianfeng Zhu;Lei Wang;Hui Liu;L. Yi;Wenling Wu;Fen Wang
采用原位聚合法制备了新型高性能超级电容器电极材料聚苯胺(PANI)修饰的二维Ti3C2复合材料(简称PANI-Ti3C2)。实验结果表明，在Ti3C2中引入PANI可以改善Ti3C2的电化学性能，这是因为PANI中的氨基不仅增加了Ti3C2的电导率，加快了离子的传输，而且还改善了Ti3C2的表面润湿性，使其具有更多的活性中心，并为增加容量提供了法拉第反应。PANI-Ti3C2的比电容在2 F g−1at 2 −1时达到最大值164 F g−，是Ti3C2(131 F g−1)的1.26倍。此外，PANI-Ti3C2具有优异的循环稳定性，在3,000次循环后仍保持∼初始容量的96%。
A novel high-performance supercapacitor electrode material, polyaniline (PANI) modified two-dimensional Ti3C2composites(denoted as PANI-Ti3C2), has been synthesized via in situ polymerization. The experiment results showed that the introduction of PANI to Ti3C2can improve the electrochemical properties of Ti3C2because the amino groups in PANI not only increased the electric conductivity for faster ion transport but also improved the surface wettability of Ti3C2for more active sites and provided faradaic reactions for additional capacity. The specific capacitance of PANI-Ti3C2can achieve a maximum of 164 F g−1at 2 mV s−1and 1.26 times greater than that of Ti3C2(131 F g−1). Moreover, PANI-Ti3C2showed superior cycling stability, retaining ∼96% of its initial capacitance after 3000 cycles.