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Carbon foam loaded magnesium-nickel-copper composite hydrogen storage material and preparation method thereof

A technology of hydrogen storage materials and foamed carbon, which is applied in the direction of carbon preparation/purification, chemical instruments and methods, nanotechnology for materials and surface science, etc., can solve the problems of high cost, difficulty in realization, and low efficiency, and achieve The effect of low cost, good stability and simple preparation process

Inactive Publication Date: 2017-07-25
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently emerging technologies for enhanced heat transfer in the hydrogen storage process are deficient: inefficient, costly or difficult to implement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a. get 500 grams of coal tar pitch and pulverize to 100 orders, add the polyethylene glycol that accounts for 20% of the mass percentage of coal tar pitch, add the AC blowing agent (azodicarbonamide) that accounts for 30% of the mass percentage of coal tar pitch, After mixing and stirring, add it to a high-temperature and high-pressure reactor, and heat it to 450°C at a rate of 5°C / min under 3 atmospheric pressure and a nitrogen atmosphere to make it react at a constant temperature and foam. After 5 hours, it was naturally cooled to room temperature to obtain primary foamed charcoal raw material. Put the primary foam carbon raw material into the carbonization furnace, raise the temperature at 40°C / min to 1000°C under normal pressure nitrogen atmosphere, then carbonize at constant temperature for 4 hours, and cool naturally to obtain the foam carbon carrier material, and then crush it into 80 mesh foam carbon Carrier material particles.

[0017] b. Take 30% magnesium po...

Embodiment 2

[0026]a. get 800 grams of coal tar pitch and pulverize to 100 orders, add the polyethylene glycol that accounts for 15% of the mass percentage of coal tar pitch, add the AC foaming agent (azodicarbonamide) that accounts for 20% of the mass percentage of coal tar pitch, After mixing and stirring, add it to a high-temperature and high-pressure reactor, and heat it to 400°C at 8°C / min under 4 atmospheres of pressure and a nitrogen atmosphere to make it react at a constant temperature and foam. After 3 hours, it was naturally cooled to room temperature to obtain primary foamed charcoal raw material. Put the primary foam carbon raw material into the carbonization furnace, raise the temperature at 70°C / min to 1000°C under normal pressure nitrogen atmosphere, and then carbonize at constant temperature for 5 hours, then cool naturally to obtain the foam carbon carrier material, and then crush it into 80 mesh foam carbon Carrier material particles.

[0027] b. take respectively 20% ma...

Embodiment 3

[0036] a. get 1000 grams of coal tar pitch and pulverize to 120 orders, add the polyethylene glycol that accounts for 30% of the mass percentage of coal tar pitch, add the AC foaming agent (azodicarbonamide) that accounts for 15% of the mass percentage of coal tar pitch, After mixing and stirring, add it to a high-temperature and high-pressure reactor, and heat it to 400°C at a rate of 10°C / min under 3 atmospheric pressure and a nitrogen atmosphere to make it react at a constant temperature and foam. After 5 hours, it was naturally cooled to room temperature to obtain primary foamed charcoal raw meal. Put the primary foam carbon raw material into the carbonization furnace, raise the temperature at 50°C / min to 1200°C under normal pressure nitrogen atmosphere, then carbonize at constant temperature for 4 hours, and cool naturally to obtain the foam carbon carrier material, and then crush it into 80 mesh foam carbon Carrier material particles.

[0037] b. Take 30% magnesium powd...

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Abstract

Theinvention discloses a carbon foam loaded magnesium-nickel-copper composite hydrogen storage material. The material is prepared from 50-70 parts by mass of carbon, 20-40 parts by mass of magnesium, 5-10 parts by mass of nickel, and 5-10 parts by mass of copper. The invention further discloses a preparation method of the carbon foam loaded magnesium-nickel-copper composite hydrogen storage material. The preparation method comprises the steps of preparing carbon foam carrier material particles, preparing magnesium-nickel-copper alloy powder, and preparing the hydrogen storage material with the prepared carbon foam carrier material particles and the prepared magnesium-nickel-copper alloy powder. Multiple metal alloys are loaded based on a skeleton and a mesh porous structure of the carbon foam, so that clear channels are provided for diffusion and absorption of gas in the hydrogen storage process. The formed composite material has performance of both the carbon foam and the multi-component alloy hydrogen storage material, thereby having high hydrogen storage capacity. The raw materials of the hydrogen storage material are from coal tar pitch and magnesium-nickel-copper alloy. The preparation process is simple and controllable, and the cost is low.

Description

technical field [0001] The invention relates to the field of solid hydrogen storage materials, in particular to a foamed carbon-loaded magnesium-nickel-copper composite hydrogen storage material and a preparation method thereof. Background technique [0002] Hydrogen energy is one of the country's major strategic needs. In the development of hydrogen energy technology, hydrogen storage is a crucial link. Solid-state hydrogen storage has become a hot spot and focus of hydrogen energy research at home and abroad. Coordination metal hydride storage Hydrogen and alloy hydrogen storage is the main method. Coordination metal hydrides are generally composed of alkali metals and alkaline earth metals [AlH 4 ]-, [NH 2 ]-, [BH 4 ]- and other hydride anions, the biggest difference from the alloy is that the hydrogen storage capacity is large, a higher hydrogen absorption and desorption temperature is required, and the reversibility of the cycle reaction is poor. The hydrogen desorpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/00C01B32/05B82Y30/00
CPCC01B3/0031C01B3/0078C01P2004/64C01P2004/80C01P2006/10C01P2006/12Y02E60/32
Inventor 豆斌林张华崔国民王子龙张振华吴文广
Owner UNIV OF SHANGHAI FOR SCI & TECH
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