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Metallofullerene derivatives, methods for their preparation, and methods for energy storage and conversion

A metallofullerene and energy storage technology, applied in the field of metallofullerene derivatives and their preparation, can solve the problems of low light energy conversion rate, complex research instruments, difficulty in analyzing spectra, etc., and achieves high energy conversion rate, selectable The effect of good sex and variety of methods

Active Publication Date: 2020-01-31
BEIJING FUNAKANG BIOTECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem of low conversion rate of existing light energy, and to overcome the defects of complex research instruments, difficult testing, difficulty in analyzing spectra and low sensitivity of the existing research on the existence of excited-state free radical ions, the invention provides metallofullerene The derivative has high energy storage rate and energy conversion rate, and can be practically applied in energy storage and conversion, and simultaneously provides the preparation method and energy storage and conversion method of the metallofullerene derivative

Method used

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  • Metallofullerene derivatives, methods for their preparation, and methods for energy storage and conversion
  • Metallofullerene derivatives, methods for their preparation, and methods for energy storage and conversion
  • Metallofullerene derivatives, methods for their preparation, and methods for energy storage and conversion

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Embodiment 1

[0052] Metallofullerene Y 3 N@C 80 The preparation method of nitrogen oxide free radical derivative, process is as follows:

[0053] (1) Metallofullerene Y 3 N@C 80 The preparation method, Y 3 N@C 80 Molecules were obtained by the arc discharge method in a DC arc discharge furnace ( -Huffman method) synthesis, the specific process includes: first drilling a solid graphite rod with an outer diameter of 8mm into a hollow graphite tube with an inner diameter of about 6mm, and then YNi 2 The alloy and graphite powder are mixed evenly according to the mass ratio of 3:1, then filled into the graphite tube, and compacted; the filled metal / graphite rod is installed on the anode of the electric arc furnace and fixed, the furnace cover is closed, and the vacuum pump is turned on; The valve between the furnace chamber and the vacuum pump is used to evacuate the electric arc furnace. When the air pressure is lower than 10Pa, turn on the cooling circulating water, turn on the electr...

Embodiment 2

[0058] Metallofullerene Y 3 N@C 80 The detection method of photoexcited electron transfer paramagnetic signal of nitroxide radical derivative, the process is as follows:

[0059] Take about 0.5 mg of sample and dissolve it in 1 mL of toluene solution, place the solution in a plugged quartz tube, irradiate with ultraviolet light, and then test the electronic paramagnetic signal properties of the sample. The ESR signal decreased gradually with the prolongation of the UV irradiation time. After 4 minutes of UV irradiation, the ESR signal decreased obviously, and then tended to slow down. The decrease of the ESR signal indicates that the paramagnetic nitroxide radical has become a diamagnetic species, which also indicates that the metallofullerene Y 3 N@C 80 Some of the processes involved in quenching the ESR signal of nitroxide radicals (see figure 2 ).

Embodiment 3

[0061] Metallofullerene Sc 3 N@C 80 The preparation method of nitrogen oxide free radical derivative, process is as follows:

[0062] (1) Metallofullerene Sc 3 N@C 80 The preparation method, Sc 3 N@C 80 Molecules were obtained by the arc discharge method in a DC arc discharge furnace ( -Huffman method), the specific process includes: first drill a solid graphite rod with an outer diameter of 8mm into a hollow graphite tube with an inner diameter of about 6mm, and then drill the ScNi 2 The alloy and graphite powder are mixed evenly according to the mass ratio of 3:1, then filled into the graphite tube, and compacted; the filled metal / graphite rod is installed on the anode of the electric arc furnace and fixed, the furnace cover is closed, and the vacuum pump is turned on; The valve between the furnace chamber and the vacuum pump is used to evacuate the electric arc furnace. When the air pressure is lower than 10Pa, turn on the cooling circulating water, turn on the elect...

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Abstract

Metallofullerene derivatives, a preparing method thereof and an energy storage and conversion method of the derivatives are disclosed. The derivatives are obtained by modifying the surface of metallofullerene with derivatives of a nitroxide free radical micromolecule that is 2,2,6,6-tetramethylpiperidinooxy through an addition reaction. The metallofullerene derivatives are radiated by adopting ultraviolet light, and then participate catalytic oxidation reactions, the energy storage rate and energy conversion rate are high, storage of ultraviolet light energy and conversion from the light energy to chemical energy are achieved, and the energy storage and conversion method and process are simple. An electron transfer process of the metallofullerene derivatives radiated by the ultraviolet light can be analyzed by a conventional test instrument, the electron transfer situation can be reflected by changes of electron paramagnetic signals, and sensitivity is high. The time scale in the electron transfer process can be detected as an expansion.

Description

technical field [0001] The invention relates to metal fullerene derivatives and their preparation methods and application fields, in particular to metal fullerene derivatives and their preparation methods, and energy storage and conversion methods using the metal fullerene derivatives. Background technique [0002] As a cheap, green and easily available renewable energy, solar energy is the best substitute for fossil energy. The first problem to be solved in utilizing solar energy is energy conversion, and light-induced electron transfer as an energy conversion mode of photosynthesis in nature has attracted widespread attention. [0003] The technology of simulating photosynthesis to store solar energy has entered the sight of scientists as early as the early 1970s. For decades, researchers have been trying to replicate the way green plants split water. Using chemical methods, scientists can complete the water decomposition reaction, but these chemical reaction conditions ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D401/12B01J31/26C07C45/29C07C47/54C07C47/575
CPCB01J31/26B01J35/004B01J2231/70C07C45/29C07D401/12C07C47/54C07C47/575
Inventor 王春儒吴波
Owner BEIJING FUNAKANG BIOTECH CO LTD
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