A kind of magnesium hydride/metal phthalocyanine hydrogen storage composite material and its preparation method

A metal phthalocyanine, composite material technology, used in chemical instruments and methods, non-metallic elements, hydrogen, etc.

Active Publication Date: 2021-06-08
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 of a way to improve the MgH 2 Effective way of hydrogen release performance

Method used

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  • A kind of magnesium hydride/metal phthalocyanine hydrogen storage composite material and its preparation method
  • A kind of magnesium hydride/metal phthalocyanine hydrogen storage composite material and its preparation method
  • A kind of magnesium hydride/metal phthalocyanine hydrogen storage composite material and its preparation method

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 uses the metal phthalocyanine compound MePc as an additive, and combines it with magnesium hydride MgH 2 Compounded by high energy ball milling. The metal phthalocyanine compound is one or more of iron phthalocyanine FePc, cobalt phthalocyanine CoPc, nickel phthalocyanine NiPc and the like. Its preparation method is mainly: metal phthalocyanine MePc and magnesium hydride MgH 2 Mix according to the mass ratio of 10:100-20:100, and use high-energy ball milling method to mill the mixture under inert gas protection or hydrogen atmosphere. The ball mill speed is 800-1000r / min, and the ball-to-material ratio is 30:1-50 : 1. The ball milling time is 2-4 hours, every ball milling is 0.5-1 hour, and the ball mill is stopped for 15-30 minutes. The magnesium hydride / metal phthalocyanine hydrogen storage composite material obtained by the present invention utilizes the unique high catalytic activity of the metal phthalocyanine compound MePc, which greatly reduces the amount of magnesium hydride MgH 2 The initial hydrogen release temperature, and its preparation process and equipment are simple, low energy consumption, low cost, and has ideal application prospects.

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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Patent Type & Authority Patents(China)
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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