• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced energy materials >All-Printed MnHCF-MnOx-Based High-Performance Flexible Supercapacitors
【24h】

All-Printed MnHCF-MnOx-Based High-Performance Flexible Supercapacitors

机译：基于全印刷MnHCF-MnOx的高性能柔性超级电容器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Here, a simple active materials synthesis method is presented that boosts electrode performance and utilizes a facile screen-printing technique to prepare scalable patterned flexible supercapacitors based on manganese hexacyanoferrate-manganese oxide and electrochemically reduced graphene oxide electrode materials (MnHCF-MnOx/ErGO). A very simple in situ self-reaction method is developed to introduce MnOx pseudocapacitor material into the MnHCF system by using NH4F. This MnHCF-MnOx electrode materials can deliver excellent capacitance of 467 F g(-1) at a current density of 1 A g(-1), which is a 2.4 times capacitance increase compared to MnHCF. In addition a printed, patterned, flexible MnHCF-MnOx/ErGO supercapacitor is fabricated, showing a remarkable areal capacitance of 16.8 mF cm(-2) and considerable energy and power density of 0.5 mWh cm(-2) and 0.0023 mW cm(-2), respectively. Furthermore, the printed patterned flexible supercapacitors also exhibit exceptional flexibility, and the capacitance remains stable, even while bending to various angles (60 degrees, 90 degrees, and 180 degrees) and for 100 cycles. The flexible supercapacitor arrays integrated by multiple prepared single supercapacitors can power various LEDs even in the bent states. This approach offers promising opportunities for the development of printable energy storage materials and devices with high energy density, large scalability, and excellent flexibility.
机译：在这里，提出了一种简单的活性材料合成方法，该方法可提高电极性能并利用便捷的丝网印刷技术，基于六氰合铁酸锰-氧化锰和电化学还原的氧化石墨烯电极材料（MnHCF-MnOx / ErGO）来制备可缩放的图案化柔性超级电容器。开发了一种非常简单的原位自反应方法，通过使用NH4F将MnOx伪电容器材料引入MnHCF系统。这种MnHCF-MnOx电极材料在1 A g（-1）的电流密度下可以提供467 F g（-1）的出色电容，这是MnHCF的2.4倍。此外，还制作了印刷的，有图案的，柔性的MnHCF-MnOx / ErGO超级电容器，显示出16.8 mF cm（-2）的显着面电容以及0.5 mWh cm（-2）和0.0023 mW cm（-）的相当大的能量和功率密度。 2）。此外，即使弯曲到各种角度（60度，90度和180度）并弯曲100个周期，印刷的图案化柔性超级电容器也具有出色的柔性，并且电容保持稳定。由多个准备好的单个超级电容器集成的柔性超级电容器阵列甚至可以在弯曲状态下为各种LED供电。这种方法为开发具有高能量密度，大可扩展性和出色灵活性的可印刷储能材料和设备提供了广阔的机遇。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号