掺N、S综纤维素基水热炭的制备及其表征

发布时间：2018-05-20 01:25

  本文选题：水热炭 + 综纤维素　； 参考：《东北林业大学学报》2017年10期

【摘要】：为了得到一种具有较高比表面积且掺杂N、S元素的新型碳材料,且为这种碳材料的应用提供一定的数据支持,以杨木木粉制得的综纤维素为原料,以氨水和正硅酸乙酯反应制得的纳米SiO_2为模板剂,L-半胱氨酸作为N、S元素的来源,采用水热炭化法在一定温度下制得了水热炭材料,并在氮气气氛下对其进行烧结处理。通过SEM、能谱分析、XPS、TG-DTG等测试方法对其进行表征,结果表明,本实验制得最终产物含有N、S元素,其质量分数分别为17.07%和1.81%,比表面积为220 m~2/g,较参照样具有显著提高,并显示出良好的热稳定性。
[Abstract]:In order to obtain a new kind of carbon material with high specific surface area and doped with N, S element, and provide certain data support for the application of this kind of carbon material, the nano SiO_2 obtained by the reaction of ammonia water and ethyl orthosilicate was used as the template, and L- cysteine was used as the source of N, S element, and the water used water. Hot carbonization has been made at a certain temperature and has been sintered under nitrogen atmosphere at a certain temperature. It is characterized by SEM, energy spectrum analysis, XPS, TG-DTG and other testing methods. The results show that the final product contains N and S elements, with the mass fraction of 17.07% and 1.81% respectively, and the specific surface area is 220 m~2/g, compared with the reference. The samples showed marked improvement and showed good thermal stability.
【作者单位】： 东北林业大学;
【基金】：林业公益性行业科研专项(201404506) 东北林业大学大学生国家级创新训练计划项目(201510225010)
【分类号】：TQ127.11
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本文编号：1912574