Magnesium hydride/metal phthalocyanine hydrogen storage composite material and preparation method thereof

A technology of metal phthalocyanine and composite materials, applied in chemical instruments and methods, non-metallic elements, hydrogen, etc., to achieve the effects of convenient operation, improved hydrogen release performance, and low preparation cost

Active Publication Date: 2018-10-09
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the introduction of metal phthalocyanine compound MePc is no lack

Method used

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  • Magnesium hydride/metal phthalocyanine hydrogen storage composite material and preparation method thereof
  • Magnesium hydride/metal phthalocyanine hydrogen storage composite material and preparation method thereof
  • Magnesium hydride/metal phthalocyanine hydrogen storage composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) MgH with a purity of 98% by weight is fully dried 2 Add 10wt% fully dried NiPc powder with a purity of 95wt% to the powder, and add the above mixed powder and 30g of stainless steel balls with a diameter of 10mm into a ball mill jar.

[0029] (2) Ball mill the powder in (1) for 2 hours at a speed of 1000r / min, and stop for 15 minutes every 1 hour of ball milling. After getting MgH 2 / 10wt% NiPc hydrogen storage composite.

[0030] (3) For the convenience of comparison, the same process was used to prepare pure MgH 2 Ball milling system, X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) characterization and comparison of the above two materials. and scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) for the 2 / 10wt% NiPc system for qualitative and quantitative analysis of elements.

[0031] The sample prepared in the above process is MgH 2 / 10wt% NiPc hydrogen storage composite. Such as fig...

Embodiment 2

[0033] (1) to fully dry MgH 2 Add 20wt% fully dried NiPc powder to the powder, add the above mixed powder and 30g of stainless steel balls with a diameter of 10mm into the ball mill jar.

[0034] (2) Ball mill the powder in (1) for 2 hours at a speed of 1000r / min, and stop for 15 minutes every 1 hour of ball milling. After getting MgH 2 / 20wt% NiPc hydrogen storage composite material.

[0035] (3) to MgH 2 The / 20wt% NiPc hydrogen storage composite material was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), differential scanning calorimetry (DSC) and compared with the two materials in Example 1.

[0036] Depend on figure 1 (c) It can be seen that MgH 2 / 20wt% NiPc system XRD patterns and MgH 2 / 10wt% NiPc system is basically the same. Depend on figure 2 (c) It can be seen that MgH 2 / 20wt% NiPc system particles compared to pure MgH 2 The system has increased, and MgH 2 / 10wt% NiPc system compared with no significant change. This show...

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Abstract

The invention discloses a magnesium hydride/metal phthalocyanine hydrogen storage composite material and a preparation method thereof. The hydrogen storage composite material is formed by using a metal phthalocyanine compound MePc as an additive and performing high-energy ball milling compounding on the metal phthalocyanine compound and magnesium hydride MgH2; the metal phthalocyanine compound isselected from one or two kinds of materials from FePc (iron phthalocyanine), CoPc (cobalt phthalocyanine), NiPc (nickel phthalocyanine) and the like. The preparation method is mainly characterized inthat metal phthalocyanine MePc and magnesium hydride MgH2 are mixed according to a proportion of 10:100-20:100; the mixture is subjected to ball milling by a high-energy ball milling method under theinert gas protection or hydrogen atmosphere condition; the rotating speed of a ball grinding mill is 800 to 1000r/min; the ball material ratio is 30:1-50:1; the ball grinding time is 2 to 4h; after each ball grinding is performed for 0.5 to 1h, the ball grinding mill stops for 15 to 30min. The obtained magnesium hydride/metal phthalocyanine hydrogen storage composite material has the advantages that the unique high catalytic activity of metal phthalocyanine compound MePc is utilized; the initial hydrogen release temperature of magnesium hydride MgH2 is greatly reduced; the preparation processand the equipment are simple; the energy consumption is low; the cost is low; ideal application prospects are realized.

Description

technical field [0001] The invention relates to the field of hydrogen storage materials, in particular to a magnesium hydride / metal phthalocyanine hydrogen storage composite material and a preparation method thereof. Background technique [0002] Hydrogen energy is recognized as the most ideal green secondary new energy because of its abundant reserves, high energy density, clean and pollution-free combustion products, and recyclable regeneration. The safe and efficient development and utilization of hydrogen energy is of great significance to solve the problems of energy shortage and environmental pollution faced by the world today. [0003] The development and application of hydrogen energy mainly cover three key stages: hydrogen production, hydrogen storage, and hydrogen application. With the rapid progress and innovation of related technologies, a series of major breakthroughs have been achieved in the fields of hydrogen production and hydrogen utilization. However, th...

Claims

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Application Information

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IPC IPC(8): C01B3/00
CPCC01B3/0078C01P2002/72C01P2004/03Y02E60/32
Inventor 张健瞿辉阎帅
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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