Template-Confined Growth of Poly(4-aminodiphenylamine) Nanosheets as Positive Electrode toward Superlong-Life Asymmetric Supercapacitor
Template-Confined Growth of Poly(4-aminodiphenylamine) Nanosheets as Positive Electrode toward Superlong-Life Asymmetric Supercapacitor
复制标题
模板限制生长聚（4-氨基二苯胺）纳米片作为超长寿命不对称超级电容器的正极
DOI：
10.1021/acsami.8b14138
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发表时间：
2018
影响因子：
9.5
通讯作者：
Ziqiang Lei
中科院分区：
文献类型：
--
作者：
Hui Peng;Rui Zhao;Jing Liang;Sihan Wang;Fei Wang;Jiezi Zhou;Guofu Ma;Ziqiang Lei
利用软模板辅助技术在水相体系中制备二维导电聚合物纳米片的报道还很少，尤其是利用质子酸辅助控制胶束稳定性的方法来形成纳米片结构的报道更是少见。本文提出了一种简单、一步、自下而上的方法，通过调节表面活性剂层状胶束自组装过程中的质子酸浓度，制备出具有可控形貌的新型、均匀的导电聚(4-氨基二苯胺)(P(4-ADPA))纳米片。所制备的导电材料P(4-ADPA)是一种完整的纳米骨架结构，具有均匀和缠绕的纳米片，在0.5Ag-1的电流密度下获得了令人满意的比电容395 Fg-1。此外，选择另一种伪电容电极材料海胆状W18O49作为负极材料，制备了一种新型的P(4-ADPA)//W18O49不对称超级电容器，其工作电压窗口扩展到1.5V，在1491W kg-1的高功率密度下提供了24.4W h kg-1的能量密度。10 000次循环后容量保持率达92%的超长寿命。因此，本工作将提出一种可负担得起的策略来设计新型导电聚合物纳米片，并开辟廉价导电聚合物满足储能需求的可能性。
Two-dimensional conducting polymers nanosheet prepared by the soft-template-assisted technique in aqueous system still has rarely been reported, especially the formation of nanosheets structure by protonic acid assisted controlling the stability of the micelles method. Herein, a facile, one-step, bottom-up approach is developed to synthesize novel and uniform conductive poly(4-aminodiphenylamine) (P(4-ADPA)) nanosheets with controlled morphology via regulating the proton acid concentration during the self-assembly of surfactant lamellar micelles. The as-produced conducting P(4-ADPA) demonstrates a integral nanoframework structure with uniform and intertwined nanosheets, resulting in a satisfactory specific capacitance of 395 F g–1at the current density of 0.5 A g–1. Furthermore, another pseudocapacitor electrode material, urchin-like W18O49, is selected as a negative electrode material to fabricate a novel P(4-ADPA)//W18O49asymmetric supercapacitor, which extends the operating voltage window up to 1.5 V, provides an energy density of 24.4 W h kg–1at a high power density of 1491 W kg–1, and possesses superlong-life of 92% capacitance retention after 10 000 cycles. Therefore, the present work will propose an affordable strategy to design novel conducting polymer nanosheets and open up the possibility of cheap conductive polymers to meet the demands of energy storage.