四氢萘为良溶剂液/液界面法制备多级C<sub>60</sub>晶体

张琳雯; 周升菊; 陈孟军; 尹克样; 李洪光

doi:10.1016/S1872-5805(19)60013-2

四氢萘为良溶剂液/液界面法制备多级C₆₀晶体

doi: 10.1016/S1872-5805(19)60013-2

1.
中国科学院兰州化学物理研究所清洁能源化学与材料实验室, 甘肃兰州 730000;
2.
中国科学院大学, 北京 100049;
3.
山东大学胶体与界面化学教育部重点实验室, 山东济南 250100

基金项目: 国家自然科学基金（61474124）.

详细信息

作者简介:
张琳雯,硕士研究生.E-mail:zhanglinwen@licp.cas.cn

通讯作者:
李洪光,研究员.E-mail:hgli@sdu.edu.cn

中图分类号: TQ127.1⁺1
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- 文章访问数: 286
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- 被引次数: 0
出版历程
- 收稿日期: 2019-03-30
- 录用日期: 2019-06-27
- 修回日期: 2019-06-01
- 刊出日期: 2019-06-28

Hierarchically-organized C₆₀crystals obtained from a liquid/liquid interfacial precipitation method by using 1,2,3,4-tetrahydronaphthalene as a solvent

1.
Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
2.
University of Chinese Academy of Sciences, Beijing 100049, China;
3.
Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, China

Funds: National Natural Science Foundation of China (61474124).

摘要

摘要: 采用液/液界面法制备了不同形貌的多级C₆₀结构。以四氢萘作良溶剂，异丙醇、乙醇、甲醇作不良溶剂，通过优化实验条件，成功制备了形貌特殊、界面清晰的C₆₀晶体结构。此晶体表面粗糙度能通过乙醇洗涤得到进一步提高。通过对晶体内部形貌的观察，证实了晶体的多级自组装结构。红外、拉曼光谱和热重分析表明晶体仅由C₆₀组成，不含溶剂分子。在纳米尺度上，通过X-射线衍射证实了分子水平上C₆₀分子按照面心立方结构方式排列。此法制备的多级结构C₆₀晶体比高温转变、溶剂热处理等方法更为简易，为多级材料制备提供了一条新路径。
- 富勒烯C₆₀晶体 /
- 多级结构 /
- 液-液界面法 /
- 面心立方晶格
Abstract: C₆₀ crystals have potential applications in the optoelectronics, photoconducting devices and templated synthesis fields. However, their preparation is complex. A simple liquid-liquid interfacial precipitation method was used to fabricate hierarchically-organized C₆₀ crystals with various topographic characteristics, using 1,2,3,4-tetrahydronaphthalene as a good solvent, and isopropanol, ethanol or methanol as a poor solvent. Results indicate that the morphology and shape of the as-prepared C₆₀ crystals vary according to the solvent combination and the ratio of good to poor solvents. The SEM images of fractured surfaces and XRD patterns of the crystals reveal that the crystals are formed by the hierarchical organization of C₆₀ molecules at the molecular level to nanocrystals that are assembled into micrometer crystals. The crystals are composed solely of C₆₀ molecules, without polymerization and solvents, which are arranged in a face-centered cubic lattice. The surface roughness is increased by post washing with ethanol. The methodology described here is advantageous over the high-temperature conversion and solvent annealing methods reported previously.
- Fullerene C₆₀ crystal /
- Hierarchically-organized /
- Liquid-liquid interfacial precipitation method /
- Face-centered cubic lattice

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