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Catalytic decomposition hydrogen release method for fullerene multihydrid hydrogen-storage material

A hydrogen storage material, catalytic decomposition technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, hydrogen, etc., can solve the problems of difficult processing, no research, high cost, etc., and achieve high hydrogen storage density Effect

Inactive Publication Date: 2006-06-21
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Compressed hydrogen gas storage: this method takes up a large volume, high cost, and is not safe
[0005] (2) Liquefied hydrogen hydrogen storage: hydrogen loss is large and difficult to handle
[0007] (4) Chemical hydrogen storage: This method reduces the purity of hydrogen and is toxic
At present, C is used internationally and for discovery 60 h 36 It is studied as a hydrogen storage material, not to mention C 60 h 36 Under the action of a catalyst, heat or light is used to decompose and release hydrogen, so this method is a new method of hydrogen storage and desorption

Method used

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  • Catalytic decomposition hydrogen release method for fullerene multihydrid hydrogen-storage material
  • Catalytic decomposition hydrogen release method for fullerene multihydrid hydrogen-storage material
  • Catalytic decomposition hydrogen release method for fullerene multihydrid hydrogen-storage material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Thermocatalytic C 60 h 36 split hydrogen

[0039] 20 mg C 60 h 36 , 15 mg Ir(CO)(PPh 3 ) 2 Cl and 0.5ml d 4 -Deuterated o-dichlorobenzene is added to the nuclear magnetic tube, then the nuclear magnetic tube is frozen in liquid nitrogen to solidify the reactant, the nuclear magnetic tube is evacuated with a vacuum pump, and then the vacuum pump is turned off, so that the solidified liquid in the nuclear magnetic tube is under vacuum Slowly heat and completely dissolve, then put the NMR tube into liquid nitrogen and freeze it. After repeating this operation 3 times, seal the tube, and then react at 60°C for 3 hours, hydrogen gas will be generated, and then measure the H-NMR spectrum and NMR spectrum. The place where δ=6.0 on the figure is H 2 peak, see figure 1 .

Embodiment 2

[0041] Thermocatalytic C 60 h 36 split hydrogen

[0042] 20 mg C 60 h 36 , 10 mg of Pd / C (wherein the mass percentage of Pd is 10%) and 0.5 ml of d 4 -Deuterated o-dichlorobenzene is added to the nuclear magnetic tube, then the nuclear magnetic tube is frozen in liquid nitrogen to solidify the reactant, the nuclear magnetic tube is evacuated with a vacuum pump, and then the vacuum pump is turned off, so that the solidified liquid in the nuclear magnetic tube is under vacuum Slowly heat and completely dissolve, then put the NMR tube into liquid nitrogen and freeze it. After repeating this operation 3 times, seal the tube, and then react at 100°C for 16 hours, hydrogen gas will be generated, and then measure the H-NMR spectrum and NMR spectrum. The place where δ=5.2 on the figure is H 2 peak, see figure 2 .

Embodiment 3

[0044] photocatalytic C 60 h 36 split hydrogen

[0045] 20 mg C 60 h 36 , 10 mg Rh(CO)(PPh 3 ) 2 Cl and 0.5ml d 4 -Deuterated o-dichlorobenzene is added to the nuclear magnetic tube, then the nuclear magnetic tube is frozen in liquid nitrogen to solidify the reactant, the nuclear magnetic tube is evacuated with a vacuum pump, and then the vacuum pump is turned off, so that the solidified liquid in the nuclear magnetic tube is under vacuum Slowly heat and completely dissolve, then put the NMR tube into liquid nitrogen and freeze it. After repeating this operation for 3 times, seal the tube, and then react under 365nm ultraviolet light for 6 hours, then hydrogen gas will be generated, and then measure the H NMR spectrum. On the NMR spectrum, δ=5.3~5.8 is H 2 peak, see Figure 3.

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Abstract

The invention belongs to the energy source material field, particularly relating to the method of catalytic decomposition for hydrogen release by the alloocimene hydrogen-storing material C60H36. Adding the C6OH36 and catalyst and solvent into the nuclear magnetic tube, cooling in the liquid nitrogen to solidify the reactant, vacuum-pumping the nuclear magnetic pipe with vacuum pump, then closing the vacuum pump to make the solidified liquid in the nuclear magnetic pipe be heated slowly for total dissolution, putting the nuclear magnetic pipe into the liquid nitrogen for cooling, repeating the steps for times and sealing the pipe, then reacting under temperature of 25-200 Deg C or undrer ultraviolet irradiation for some time to generate hydrogen, detecting the proton magnetic spectrum on which the hydrogen signal can be seen. The hydrogen content of C6OH36 is as high as 4.8 wt%, 403 liter hydrogen can be generated by 1 mole C6OH36 under standard condition, so the hydrogen-storing density is high and safe by using C6OH36.

Description

technical field [0001] The invention belongs to the field of energy materials, in particular to fullerene-based hydrogen storage materials C 60 h 36 Method of catalytic decomposition for hydrogen evolution under different conditions. Background technique [0002] The energy problem is a major scientific and technological problem faced by the sustainable development of the economies of countries all over the world. Hydrogen energy is a clean, pollution-free and environmentally friendly new energy source. In the process of its development and utilization, safe and reliable hydrogen storage technology is a very important link , so the research and development of hydrogen storage materials has become a hot topic all over the world. [0003] At present, hydrogen storage materials mainly fall into the following categories: [0004] (1) Compressed hydrogen gas storage: This method occupies a large volume, is expensive, and is not safe. [0005] (2) Liquefied hydrogen hydrogen s...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B3/00
CPCB82Y30/00Y02E60/32Y02E60/36
Inventor 王乃兴张军平
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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