| 掺N、S综纤维素基水热炭的制备及其表征 |
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| 引用本文： | 陈雪琦,郭明辉,徐靖焓,陈威林,朴宣兆,李滨.掺N、S综纤维素基水热炭的制备及其表征[J].东北林业大学学报,2017,45(10). |
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| 作者姓名： | 陈雪琦 郭明辉 徐靖焓 陈威林 朴宣兆 李滨 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 林业公益性行业科研专项，东北林业大学大学生国家级创新训练计划项目 |
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| 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。
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| 关 键 词： | 水热炭 综纤维素 水热法 模板剂 N、S掺杂 |
Preparation and Characterization of N,S Co-doped Hydrochar from Holocellulose |
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| Chen Xueqi,Guo Minghui,Xu Jinghan,Chen Weilin,Piao Xuanzhao,Li Bin.Preparation and Characterization of N,S Co-doped Hydrochar from Holocellulose[J].Journal of Northeast Forestry University,2017,45(10). |
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| Authors: | Chen Xueqi Guo Minghui Xu Jinghan Chen Weilin Piao Xuanzhao Li Bin |
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| Abstract: | In order to prepared a new type of carbon material with high specific surface area and doped with N and S elements which provided some data to support for the application .We fabricated the N, S co-doped hydrochars with high specific surface area by hydrothermal carbonization ( HTC) at a certain temperature, with inserting the SiO 2 nanoparticles into the carbon microspheres which were prepared using holocellulose as the carbon source and L -cysteine as the nitrogen and sulfur co-precursors .Then the SiO 2 templates were removed , and the samples were subjected to high temperature treatment under a nitrogen atmosphere .The obtained hydrochars were analyzed by SEM , SP spectra, XPS and TG-DTG analysis .The con-tents of N and S were 17.07% and 1.81%, respectively , and the active functional groups such as -NH2 and -SH were formed on the surface of hydrochars , and the product had high specific surface area ( 220 m2/g) and excellent thermal sta-bility. |
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| Keywords: | Hydrothermal carbon Holocellulose Hydrothermal carbonization Templates N and S co-doped |
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