Nitrogen- and Sulfur-Doped Carbon Obtained from Direct Hydrothermal Carbonization of Cellulose and Ammonium Sulfate for Supercapacitor Applications,ACS Sustainable Chemistry & Engineering

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Nitrogen- and Sulfur-Doped Carbon Obtained from Direct Hydrothermal Carbonization of Cellulose and Ammonium Sulfate for Supercapacitor Applications
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-09-28 , DOI: 10.1021/acssuschemeng.0c05520
Ya-Qi Shan ₁ , Zhi-Xiang Xu ₂ , Pei-Gao Duan ₁ , Huai-Lin Fan ₃ , Xun Hu ₃ , Rafael Luque _{4,

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Affiliation

Achieving heteroatom-doped carbon materials using inorganic matter as the doping source is one of the major challenges for renewable energy storage materials. In this letter, a direct simple and reproducible methodology was designed for the preparation of nitrogen- and sulfur-doped materials by direct hydrothermal carbonization (300 °C for 1 h) of cellulose and ammonium sulfate at a mass ratio of 1:1. This N- and S-doped carbon exhibited an excellent electrochemical performance including high specific capacitance (227.3 F/g) when the current density is 1 A/g; however, its specific capacitance still retained 76.55% from the original when the current density was increased to 20 A/g,.

中文翻译：

纤维素和硫酸铵直接水热碳化获得的氮和硫掺杂碳，用于超级电容器应用

使用无机物质作为掺杂源来获得杂原子掺杂的碳材料是可再生能源存储材料的主要挑战之一。在这封信中，设计了一种直接简单且可重现的方法，用于通过质量比为1：1的纤维素和硫酸铵的直接水热碳化（300°C，1小时）来制备氮和硫掺杂的材料。当电流密度为1 A / g时，这种N和S掺杂的碳表现出优异的电化学性能，包括高比电容（227.3 F / g）；但是，当电流密度增加到20 A / g时，它的比电容仍然保持原来的76.55％。

更新日期：2020-10-26

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