...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >A general approach for producing nanoporous carbon, especially as evidenced for the case of adipic acid and zinc
【24h】

A general approach for producing nanoporous carbon, especially as evidenced for the case of adipic acid and zinc

机译：生产纳米孔碳的一般方法，尤其是己二酸和锌的情况

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

In this work, we demonstrate a novel and general synthetic approach for producing nanoporous carbon materials, using adipic add and zinc powder as raw materials. The mass ratio and carbonization temperature have crucial effects on the structure and electrochemical behavior of the carbon samples. The optimum sample is carbon-1:2-700; It Is amorphous In nature and has a high BET surface area of 1426 m~2 g~(-1) and a very large pore volume of 5.92 cm~2 g~(-1). What's more, the sample takes on sheet-like structures entirely composed of nanopores. The electrochemical performance Is measured In a three-electrode system using 6 mol L~(-1) KOH as the electrolyte, and a two-electrode system using [EMIm]BF4/ AN as the electrolyte, respectively. In the three-electrode system. It delivers a high specific capacitance of 373.3 F g~(-1) at a current density of 2 A g~(-1) Furthermore, It displays a good cycling durability of 93,9% after 10 000 cycles. In the two-electrode system, the voltage window has been largely broadened and a series of temperature-dependent measurements are adopted. More importantly, the present synthetic method can be extended to other chemical substances as carbon precursors to produce porous carbon, which can greatly enrich the field of porous carbon synthesis as well as their application as supercapacitors.
机译：在这项工作中，我们演示了使用己二酸添加物和锌粉为原料生产纳米多孔碳材料的新颖且通用的合成方法。质量比和碳化温度对碳样品的结构和电化学行为具有至关重要的影响。最佳样品是碳1：2-700;它本质上是无定形的，具有1426 m〜2 g〜（-1）的高BET表面积和5.92 cm〜2 g〜（-1）的非常大的孔体积。此外，样品具有完全由纳米孔组成的片状结构。电化学性能分别在使用6 mol L〜（-1）KOH作为电解质的三电极系统和使用[EMIm] BF4 / AN作为电解质的两电极系统中测量。在三电极系统中。它在2 A g〜（-1）的电流密度下可提供373.3 F g〜（-1）的高比电容。此外，它在10 000次循环后显示93.9％的良好循环耐久性。在双电极系统中，电压窗口已大大拓宽，并采用了一系列与温度有关的测量方法。更重要的是，本发明的合成方法可以扩展到作为碳前体的其他化学物质以生产多孔碳，这可以极大地丰富多孔碳合成的领域及其作为超级电容器的应用。

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