高中孔率活性炭的制备与表征

李艳秋; 李开喜; 孙国华; 王建龙

高中孔率活性炭的制备与表征

1. 中国科学院山西煤炭化学研究所中国科学院炭材料重点实验室|山西太原 030001;

2.
中国科学院研究生院|北京 100049

基金项目: 科技部国际合作项目(2010DFB90690-4）；山西省国际合作项目（2010081031-2）；国家自然科学基金（51002166, 51061130536）.

详细信息

作者简介:
李艳秋（1981-）|女|山东济宁人|博士研究生|主要从事新型炭材料的研究. E-mail: yanqiuli1981@yahoo.cn

通讯作者:
李开喜，博士，研究员

中图分类号: TQ424.1
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出版历程
- 收稿日期: 2011-03-21
- 录用日期: 2011-05-04
- 修回日期: 2011-04-01
- 刊出日期: 2011-04-20

Synthesis and characterization of activated carbon with a high mesoporosity

1. Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;

2.
Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Funds: International S ＆ T Coorperation Projects of China (2010DFB90690-4); International S ＆ T Coorperation Projects of Shanxi Province of China (2010081031-2); National Natural Science Foundation of China (51002166, 51061130536).

More Information

Author Bio:
LI Yan-qiu (1981-), female, Ph. D. student, engaged in the research of new carbon materials. E-mail: yanqiuli1981@yahoo.cn

Corresponding author: LI Kai-xi, Ph. D., Professor

摘要

摘要: 以线型酚醛树脂为碳源，通过形成钇-酚醛树脂配合物和水蒸气活化的方法制备了具有较高中孔率的活性炭。利用红外光谱（IR）、热重分析（TG）、氮气吸脱附曲线、扫描电镜（SEM）和X射线衍射（XRD）对所制钇-酚醛树脂配合物及相应活性炭进行了表征。结果表明：钇离子与嫁接了甲基丙烯酸甲酯的酚醛树脂之间形成钇-酚醛树脂配合物，其相应活性炭具有典型中孔炭的特征，且中孔率高达88%。钇-酚醛树脂配合物的形成，明显提高了钇元素的分散程度和钇元素的催化效率。同时，钇-酚醛树脂配合物的形成，有助于改善酚醛树脂基活性炭的孔结构和孔径分布，尤其对提高活性炭的中孔率有显著的作用。
- 钇-酚醛树脂配合物 /
- 线型酚醛树脂 /
- 中孔炭 /
- 催化 /
- 水蒸气活化
Abstract: Activated carbon with a high mesoporosity was prepared by yttrium-phenolic resin complex formation, carbonization and steam activation, using novolac phenolic resin as the carbon precursor. The resins and corresponding carbons were characterized by infrared spectrometry, thermogravimetry, nitrogen adsorption scanning electron microscopy and X-ray diffraction. Results indicated that complexes were formed between yttrium and methyl methacrylate-grafted phenolic resin, and the corresponding activated carbon had a mesoporosity up to 88%. The formation of the complexes obviously improved the compatibility between the organic precursor and the inorganic salt, leading to a homogenous distribution of yttrium and its increased catalytic efficiency. And as a result, activated carbons rich in mesopores were obtained.
- Yttrium-phenolic resin complex /
- Novolac phenolic resin /
- Mesoporous carbon /
- Catalyst /
- Steam activation