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Manganese-based complex and preparation method and application thereof

A complex, manganese-based technology, applied in the field of crystalline materials and complex materials, can solve the problems of high price, difficult to achieve industrial production, and less earth reserves, and achieves convenient operation, good stability, and promotes inter-system crossing. Effect

Active Publication Date: 2019-04-19
LUOYANG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, precious metals such as platinum and palladium have good electrocatalytic activity, which can effectively reduce the hydrogen evolution overpotential and reduce energy loss, but their earth reserves are small and expensive, making it difficult to realize industrial production

Method used

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  • Manganese-based complex and preparation method and application thereof
  • Manganese-based complex and preparation method and application thereof
  • Manganese-based complex and preparation method and application thereof

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preparation example Construction

[0030] The present invention also provides a method for preparing the manganese-based complex described in the above technical scheme, comprising the following steps:

[0031] The manganese-based complex is obtained by mixing 5-aminoisophthalic acid, manganese salt, acetonitrile and water and performing hydrothermal reaction.

[0032] In the present invention, the molar ratio of the 5-aminoisophthalic acid and the manganese salt is preferably 1:2-4, more preferably 1:3. The present invention has no special limitation on the specific type of the manganese salt, and the water-soluble manganese salt well known to those skilled in the art can be used, specifically, manganese sulfate monohydrate.

[0033] In the present invention, the dosage ratio of the manganese salt, water and acetonitrile is preferably 1g:15-30mL:4-8mL, more preferably 0.169g:6mL:2mL.

[0034] In the present invention, the temperature of the hydrothermal reaction is preferably 120-160°C, more preferably 130-15...

Embodiment 1

[0043] Mix 0.09g of 5-aminoisophthalic acid, 0.169g of manganese sulfate monohydrate with water (6mL) and acetonitrile (2mL), seal it in a 25mL reaction kettle, heat it to 120°C at a rate of 10°C per hour, and maintain this temperature for 24 hours, and then naturally cooled to room temperature, light pink massive crystals can be obtained, which are washed and dried successively to obtain the target product (manganese-based complex, chemical formula: {[Mn 0.5 (AIPA)(H 2 O)]} ∞ ).

[0044] The obtained manganese-based complexes are characterized as follows:

[0045] (1) Crystal structure determination of manganese-based complexes

[0046] A single crystal with a suitable size is selected for X-ray diffraction experiment at room temperature. Diffraction data collected on a BrukerApex II X-ray single crystal diffractometer, MoKα rays monochromated with a graphite monochromator by to collect diffraction data. All data were corrected by Lp factor and empirical absorption...

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Abstract

The invention provides a manganese-based complex, and belongs to the field of complex materials and crystalline materials. A chemical formula of the manganese-based complex is {[Mn0.5(AIPA)(H2O)]}8, and AIPA is 5-aminoisophthalic acid. In the complex structure of the manganese-based complex, organic phosphors and metal ions (manganese) can fix the organic phosphors in the rigid skeleton of the complex by a coordination force, the intramolecular movement of the phosphors are prevented, thermal vibrations necessary for triplet non-radiation attenuating are limited, while enhancing the spin-orbitcoupling of a system, and promoting inter-system turbulence and triplet generation, thereby achieving long-life room temperature phosphorescence and effective exciton migration, the manganese-based complex provided has a long triplet lifetime, the exciton lifetime and migration distances are prolonged, thereby improving the photoelectric conversion efficiency, and the method has an important practical application value.

Description

technical field [0001] The invention relates to the technical field of complex materials and crystalline materials, in particular to a manganese-based complex and its preparation method and application. Background technique [0002] The conflict between rapidly growing energy demand and increasingly serious resource shortage and environmental degradation forces people to search for clean and sustainable alternative energy sources and develop efficient energy storage systems at the same time. Hydrogen is considered to be the most potential clean energy carrier due to its high combustion calorific value, various storage and transportation methods, and abundant raw materials for preparation, which has attracted widespread attention. The most critical issue is to find a highly active electrocatalyst to reduce the overpotential and improve the hydrogen production performance. [0003] At present, precious metals such as platinum and palladium have good electrocatalytic activity,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F13/00C07C227/18C07C229/76B01J31/22
CPCC07C227/18C07C229/76C07F13/005B01J31/2217C07B2200/13B01J35/39B01J35/33
Inventor 杨晓刚常新红傅红如翟志敏
Owner LUOYANG NORMAL UNIV
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