Preparation method of energetic fullerene thin film in petal-shaped microstructure

Abstract

The invention relates to a preparation method of an energetic fullerene thin film in a petal-shaped microstructure. The preparation method comprises the steps of (1) in nitrogen protection, implementing reflux reaction to fullerene C60, p-nitrobenzaldehyde and sarcosine in an organic solvent, concentrating, separating and purifying, and recrystallizing to obtain a N-methyl-2-(4-nitrophenyl) [60] fullerene pyrrolidine derivative; (2) dissolving the N-methyl-2-(4-nitrophenyl) [60] fullerene pyrrolidine derivative in an organic solvent, dropping on a substrate, naturally drying and self-assembling to obtain the energetic fullerene thin film in the petal-shaped microstructure. The fullerene derivative obtained from the preparation method is high in fullerene content, rapid and simple in preparation method, and wide in the adopted substrate and contains energetic group nitro; the fullerene thin film material in the petal-shaped microstructure can be prepared in a large area, and has potential application prospect in catalytic materials, photoelectrical materials, energy storage materials and other fields.

Description

technical field [0001] The invention belongs to the field of preparation of nano film materials, in particular to a preparation method of an energy-containing fullerene film with petal-like microscopic appearance. Background technique [0002] The unique spherical π-electron structure and photoelectric properties make fullerenes (C 60 ) has attracted much attention in the field of materials science (Dubacheva G.V., et al, Coord. Chem. Rev., 2012, 256, 2628–2639). Recent studies have found that by controlling the key structural unit C in photoelectric conversion and catalytic functional materials 60 The self-assembled structure morphology is one of the important ways to effectively improve the performance of functional materials (Guld D.M., et al, Chem. Soc. Rev., 2009, 38, 1587–1597). At present, many studies have reported that by modifying C 60 The surface achieves control of its self-assembled structure morphology, such as in different C 60 Among derivatives, spherical...

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Problems solved by technology

[0003] Obtaining a large specific surface area and complex microscopic surface structure is particularly important for improving the performance of functional materials. It should be pointed out that in order to preserve the symmetrical structure of fullerene and its photoelectric properties to the greatest extent, generally pure fullerene or rich The self-assembled structure morphology is prepared by using derivatives with high content of slerene, but the obtained morphology is relatively simple, with small specific surface area, such as spherical, linear, rod-shaped and other shapes with smooth surface.

A recently reported fullerene derivative containing a long alkyl chain can self-assemble into a complex flower-like structure (Nakanishi T., et al, Small, 2007, 3, 2019–2023), but the disadvantage is that in this molecule The introduction of large substituents makes the content of fullerene itself in the obtained complex structure material less than 50%, which seriously weakens the photoelectric properties of fullerene itself

[0004] Therefore, it is still challenging for fullerene-based functional materials to ensure high fullerene content and controllable preparation of complex self-assembled structural film materials.

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