Metal manganese oxide-loaded ammonia borane hydrogen storage material, and preparation method thereof

A technology of hydrogen storage materials and oxides, applied in the direction of hydrogen production, etc., can solve the problems of lack of mature systems, and achieve the effects of lowering the temperature of thermally released hydrogen, fast hydrogen release kinetics, and small heat release

Active Publication Date: 2012-06-27
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although some progress has been made in the research on the thermal release of hydrogen from ammonia borane, there is still a lack of a mature system that meets the practical needs

Method used

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  • Metal manganese oxide-loaded ammonia borane hydrogen storage material, and preparation method thereof
  • Metal manganese oxide-loaded ammonia borane hydrogen storage material, and preparation method thereof
  • Metal manganese oxide-loaded ammonia borane hydrogen storage material, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of the metal manganese oxide-loaded ammonia borane hydrogen storage material, comprising the following steps:

[0029] 1) ultrasonically disperse 60 mg of manganese dioxide hollow cube (MHC) in 1.5 mL of purified tetrahydrofuran solvent to obtain a metal manganese oxide tetrahydrofuran solution;

[0030] 2) 20 mg of ammonia borane was dissolved in 1 mL of tetrahydrofuran solvent after purification to prepare ammonia borane tetrahydrofuran solution;

[0031] 3) The above two solutions are mixed, the mass ratio of metal manganese oxide and ammonia borane in the mixed solution is 3:1, and the mixed solution is slowly stirred to a uniform mixed solution at a temperature of 20° C.;

[0032] 4) After vacuum-drying the above-mentioned homogeneous mixed solution at a vacuum degree of 0.05 MPa and a temperature of 20°C to remove the solvent, the metal manganese oxide-loaded ammonia borane hydrogen storage material can be prepared, and the sample is marked as...

Embodiment 2

[0039] A preparation method of the metal manganese oxide-loaded ammonia borane hydrogen storage material, comprising the following steps:

[0040] 1) ultrasonically disperse 60 mg of manganese dioxide hollow spheres (MHS) in 1.5 mL of purified tetrahydrofuran solvent to obtain a metal manganese oxide tetrahydrofuran solution;

[0041] 2) Dissolving 20 mg of ammonia borane in 1 mL of purified tetrahydrofuran solvent to prepare ammonia borane tetrahydrofuran solution;

[0042] 3) The above two solutions are mixed, the mass ratio of metal manganese oxide and ammonia borane in the mixed solution is 3:1, and the mixed solution is slowly stirred to a uniform mixed solution at a temperature of 20° C.;

[0043] 4) After vacuum-drying the above homogeneous mixture at a vacuum degree of 0.07MPa and a temperature of 20°C to remove the solvent, the metal manganese oxide-loaded ammonia borane hydrogen storage material can be prepared, and the sample is marked as 3MHS / AB .

[0044] Imag...

Embodiment 3

[0046] A preparation method of the metal manganese oxide-loaded ammonia borane hydrogen storage material, comprising the following steps:

[0047] 1) ultrasonically disperse 60 mg of manganese dioxide nanoparticles (MNP) in 1.5 mL of purified tetrahydrofuran solvent to prepare metal manganese oxide tetrahydrofuran solution;

[0048] 2) Dissolving 20 mg of ammonia borane in 1 mL of purified tetrahydrofuran solvent to prepare ammonia borane tetrahydrofuran solution;

[0049] 3) The above two solutions are mixed, the mass ratio of metal manganese oxide and ammonia borane in the mixed solution is 3:1, and the mixed solution is slowly stirred to a uniform mixed solution at a temperature of 20° C.;

[0050] 4) After vacuum-drying the above homogeneous mixture at a vacuum degree of 0.1MPa and a temperature of 20°C to remove the solvent, the metal manganese oxide-loaded ammonia borane hydrogen storage material can be prepared, and the sample is marked as 3MNP / AB .

[0051] Figure ...

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Abstract

The invention relates to a metal manganese oxide-loaded ammonia borane hydrogen storage material, wherein the metal manganese oxide-loaded ammonia borane hydrogen storage material is prepared by loading ammonia borane through a metal manganese oxide, and the metal manganese oxide is manganese dioxide hollow cubes, manganese dioxide hollow spheres or manganese dioxide porous nanoparticles. The preparation steps comprise: 1) dispersing the metal manganese oxide in a tetrahydrofuran solvent through an ultrasonic treatment; 2) dissolving the ammonia borane in a tetrahydrofuran solvent; 3) mixing the two solutions, and uniformly stirring; 4) carrying out vacuum drying on the uniformly-mixed solution to remove the solvent to prepare the target product. The metal manganese oxide-loaded ammonia borane hydrogen storage material and the preparation method have the following advantages that: the ammonia borane and the metal manganese oxide are adopted as the raw materials, and the metal manganese oxide-loaded ammonia borane hydrogen storage material is prepared at the low temperature, such that the pyrolysis hydrogen desorption temperature of the ammonia borane can be effectively reduced, and the generations of borazole, diborane, ammonia and other harmful substances can be effectively inhibited; the heat release is small during the hydrogen desorption process, such that the regeneration of the reaction product is easily achieved through the solid-gas reaction or the chemical engineering process under the relatively mild conditions.

Description

technical field [0001] The invention relates to a hydrogen storage material and technology for new energy hydrogen energy, in particular to a metal manganese oxide-loaded ammonia borane hydrogen storage material and a preparation method thereof. Background technique [0002] Due to the rapid increase in the demand for energy around the world, limited fossil energy cannot meet the needs of rapid economic development. People are trying to find alternative energy sources for fossil energy, including renewable energy and other new energy sources. It has become a common wish of people to develop a new fuel that is renewable, has high combustion value, is easy to use and does not pollute the environment. Hydrogen is a clean and efficient energy carrier, a secondary energy that people expect, and is regarded as a substitute for fossil energy. In the future energy system, hydrogen energy can become a terminal energy that is equally important and complementary to electric energy, pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/04
CPCY02E60/364Y02E60/36
Inventor 陈军杨在兴陶占良梁静程方益
Owner NANKAI UNIV
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