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A photomagnetic functional material of metal fullerene and its preparation and application

A technology of metallofullerenes and functional materials, which can be used in the application of fullerene functional materials and molecular materials, and can solve problems such as difficulty in writing and reading

Active Publication Date: 2021-01-26
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current problem with single-molecule magnets is that it is difficult to write and read the magnetic information carried by a single molecule.

Method used

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  • A photomagnetic functional material of metal fullerene and its preparation and application
  • A photomagnetic functional material of metal fullerene and its preparation and application
  • A photomagnetic functional material of metal fullerene and its preparation and application

Examples

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preparation example Construction

[0040] The preparation method of the present invention will be further described in detail in conjunction with specific examples below. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0041] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents and materials used in the following examples can be obtained from commercial sources unless otherwise specified.

Embodiment 1

[0043] In terms of preparation, the Er / Ni alloy powder with an atomic ratio of 1:1 and the Dy / Ni alloy powder with an atomic ratio of 1:1 are mixed at a mass ratio of 1:1, and then the mixed metal powder is mixed with graphite at a mass ratio of 3:1. After the powder is mixed and fully ground, it is packaged in a drilled graphite rod, and then the graphite rod is placed on the anode, the chamber is sealed, the vacuum is evacuated to below 1Pa, and nitrogen (5Torr) and inert gas helium (200Torr) are filled sequentially. Start the power supply, discharge the cathode, the discharge current is 100A, and prepare the carbon ash of the photomagnetic functional material containing metal fullerene in the drill hole of the graphite rod. The carbon ash contains hollow fullerene and the photomagnetic material of metal fullerene. Magnetic functional material DyEr@C 82 、DyEr 2 N@C 80 、Dy 2 ErN@C 80 .

[0044] Dissolve the obtained carbon ash in toluene, and use a Soxhlet extractor to e...

Embodiment 2

[0052] Mix Y / Ni alloy powder with an atomic ratio of 1:1 and Dy / Ni alloy powder with an atomic ratio of 1:1 at a mass ratio of 1:2, and then mix the mixed metal powder with graphite powder at a mass ratio of 3:1 , after fully grinding, package it in a drilled graphite rod, then place the graphite rod on the anode, seal the chamber, evacuate it to below 1Pa, fill it with nitrogen (5Torr) and inert gas helium (200Torr) in sequence, and then turn on the power , cathode discharge to prepare metallofullerene DyY@C 82 、DyY 2 N@C 80 and Dy 2 YN@C 80 .

[0053] to DyY 2 N@C 80 For example, the separation and performance testing methods are the same as in Example 1.

[0054] Figure 4 Be the DyY of embodiment 2 2 N@C 80 The mass spectrum and schematic structure. From Figure 4 It can be seen that the sample has a strong mass spectrum peak with a molecular weight of 1316.75, which is similar to that of DyY 2 N@C 80 have the same relative molecular mass. From Figure 4 As...

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Abstract

The invention provides a photomagnetic functional material of metallofullerene and its preparation method and application. The photomagnetic functional material of metallofullerene is in molecular form, with a size of about 1nm, a definite structure, easy manipulation, and performance It has single-molecule magnet performance and photoluminescence properties, and it has hysteresis phenomenon below 5K, and the metallofullerene containing Er has a luminescence wavelength in the range of 1400-1600nm, and the metallofullerene containing Y has a luminescence wavelength in the range of 700-800nm . Not only that, the photoluminescence wavelength or intensity of the optomagnetic functional material of the metal fullerene has modulation properties under the influence of an external magnetic field, that is, there is a coupling effect between magnetism and light, which can be used for quantum information storage or quantum computing. Material.

Description

technical field [0001] The invention belongs to the field of molecular materials. Specifically, it belongs to the application field of fullerene functional materials, including a novel photomagnetic functional material of metal fullerene and its preparation and application. Background technique [0002] Metallofullerenes are a class of nanomaterials that can embed metals in fullerene carbon cages. It has a special structure, and many clusters that cannot exist independently can also exist stably in the fullerene carbon cage, which can embed metal nitrides, bimetals, metal sulfides and metal oxides, etc., so There are many types of metallofullerenes. The carbon cages of metallofullerenes can embed multiple metals, and even embed several different metals through the design of the raw materials. The combination of metals with different functions embedded in the carbon cage, using metallofullerenes as a platform provides new possibilities for the construction of new multifunc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/77C01B32/152
CPCC09K11/7766C01B32/152
Inventor 王春儒王太山聂明哲
Owner INST OF CHEM CHINESE ACAD OF SCI
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