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Integrating Effect of Surface Modification of Microporous Carbon by Phosphorus/Oxygen as well as the Redox Additive of p‐Aminophenol for High‐Performance Supercapacitors
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-02-23 , DOI: 10.1002/admi.201901933 Qianfang Tang 1 , Min Zhong 1 , Hao Liu 1 , Xiangying Chen 1, 2 , Zhongjie Zhang 3 , Shuanghong Chen 4
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-02-23 , DOI: 10.1002/admi.201901933 Qianfang Tang 1 , Min Zhong 1 , Hao Liu 1 , Xiangying Chen 1, 2 , Zhongjie Zhang 3 , Shuanghong Chen 4
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In present work, commercial microporous carbon materials are modified on the surface with phosphorus/oxygen species by using phytic acid as sole dopant, which plays crucial effect on the carbon structure, wettability, electrical conductivity, and capacitive behaviors. It reveals that with increasing the content of heteroatoms, the porosity and contact angle are decreased but the conductivity turns much larger. Furthermore, p‐aminophenol is introduced to serve as redox additive, which can produce more active surface sites by forming hydrogen bond and complexation with the surface functional groups, further providing additional pseudo‐capacitance. As a result, the energy density of carbon sample by phosphorus/oxygen doping in 1 m H2SO4 electrolyte with p‐aminophenol is as high as 9.2 Wh kg−1, which is 2.6 than that of pristine carbon. What is more, in terms of the simple operation and effective performance, the integration of surface modification toward carbon materials and redox additive can be favorable for largely enhancing the supercapacitor performance.
中文翻译：
磷/氧表面修饰微孔碳以及对氨基苯酚的氧化还原添加剂对高性能超级电容器的整合作用
在当前的工作中，通过使用植酸作为唯一的掺杂剂，用磷/氧对表面上的微孔碳材料进行了改性，这对碳的结构，润湿性，电导率和电容特性起着至关重要的作用。结果表明，随着杂原子含量的增加，孔隙率和接触角减小，但电导率变大。此外，引入了对氨基苯酚作为氧化还原添加剂，它可以通过形成氢键并与表面官能团络合而产生更多的活性表面位点，从而进一步提供额外的伪电容。结果，在1 m H 2 SO 4中掺杂磷/氧的碳样品的能量密度对氨基苯酚的电解质高达9.2 Wh kg -1，比原始碳的电解质高2.6 Wh kg -1。此外，就简单操作和有效性能而言，对碳材料和氧化还原添加剂的表面改性的整合可以有利于大大提高超级电容器性能。
更新日期：2020-02-23
中文翻译：
磷/氧表面修饰微孔碳以及对氨基苯酚的氧化还原添加剂对高性能超级电容器的整合作用
在当前的工作中，通过使用植酸作为唯一的掺杂剂，用磷/氧对表面上的微孔碳材料进行了改性，这对碳的结构，润湿性，电导率和电容特性起着至关重要的作用。结果表明，随着杂原子含量的增加，孔隙率和接触角减小，但电导率变大。此外，引入了对氨基苯酚作为氧化还原添加剂，它可以通过形成氢键并与表面官能团络合而产生更多的活性表面位点，从而进一步提供额外的伪电容。结果，在1 m H 2 SO 4中掺杂磷/氧的碳样品的能量密度对氨基苯酚的电解质高达9.2 Wh kg -1，比原始碳的电解质高2.6 Wh kg -1。此外，就简单操作和有效性能而言，对碳材料和氧化还原添加剂的表面改性的整合可以有利于大大提高超级电容器性能。
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