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Graphene sheet intercalation compound preparation method and in situ microRaman representation system

A graphene sheet and Raman characterization technology, which is applied in the field of material preparation and spectral analysis, can solve problems such as difficult Raman characterization

Inactive Publication Date: 2011-08-17
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

In addition, the small size of graphene sheets brings certain difficulties to its Raman characterization. How to judge whether the graphene sheets used are completely intercalated into first-order intercalation compounds is an urgent problem to be solved.

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  • Graphene sheet intercalation compound preparation method and in situ microRaman representation system
  • Graphene sheet intercalation compound preparation method and in situ microRaman representation system
  • Graphene sheet intercalation compound preparation method and in situ microRaman representation system

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0041] The preparation method of this graphene sheet intercalation compound provided by the present invention is to place the graphene sheet in a cuvette connected and communicated with the glass tube; place ferric chloride in the glass tube; Vacuum the tube and cuvette; heat and seal the glass tube with an alcohol lamp; heat the glass tube and cuvette to 340 degrees Celsius and keep it for 6 to 24 hours; then cool down to room temperature.

[0042] Among them, if the ferric chloride is wet, use a molecular pump to evacuate the glass tube and cuvette, heat it to 100 degrees Celsius with a heating platform and keep it for 1 hour. After cooling, heat and seal the glass tube with an alcohol lamp.

[0043] see figure 1 as sh...

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Abstract

The invention discloses a graphene sheet intercalation compound preparation method and an in situ micro-Raman representation system. The preparation method comprises the following steps: respectively placing the graphene sheet and ferric trichloride into a glass tube and a cuvette which are connected ang communicated with each other; vacuumizing the glass tube and the cuvette by a molecular pump; sealing the vacuumized glass tube and cuvette by an alcohol lamp; heating to 340 DEG C and keeping the temperature for 6 to 24 hours; and cooling to the normal temperature. The in situ micro-Raman representation system comprises the glass tube and the cuvette which contain the graphene sheet and the ferric trichloride and sealed from the outside and communicated with each other, a laser, a Raman spectrometer, a heating platform, a lifting platform, a translational platform and two scanners. The graphene sheet / ferric trichloride intercalation compound preparation method is simple and practical; and the in situ micro-Raman representation system can be used for in situ representing the micro-Raman spectrum of a graphene / ferric trichloride intercalation compound, and in situ monitoring the formation condition of the graphene / ferric trichloride intercalation compound.

Description

technical field [0001] The invention relates to the technical fields of material preparation and spectral analysis, in particular to a preparation method of a graphene sheet intercalation compound and an in-situ micro-Raman characterization system. Background technique [0002] Graphite intercalation compound is a compound that inserts atomic or molecular layers between the graphene layers of graphite. Due to their unique features in terms of structure, electrical and optical properties, graphite intercalation compounds have been extensively studied since their discovery in 1841. They are widely used in electrodes, conductors, superconductors, catalysts, batteries and other fields. [0003] The recent discovery and physical research of graphene won the Nobel Prize in Physics. Therefore, it is a very important question whether graphene sheets can be inserted into other atomic or molecular layers to form graphene sheet intercalation compounds. If it can be prepared, is there...

Claims

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Application Information

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IPC IPC(8): G01N21/65G01N1/38
Inventor 谭平恒赵伟杰韩文鹏历巧巧姬扬
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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