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Modified IRMOF-1 material and preparation method thereof

An IRMOF-1, modified technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problem of small hydrogen storage at room temperature, and achieve the effect of increasing the hydrogen storage at room temperature and changing the adsorption process.

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The room temperature hydrogen storage capacity of IRMOF-1 material in the prior art is small

Method used

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  • Modified IRMOF-1 material and preparation method thereof
  • Modified IRMOF-1 material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of IRMOF-1 material: 1.19g (4mmol) Zn(NO 3 ) 2 4H2O and 0.34g (2mmol) H 2 BDC (terephthalic acid) was mixed, dissolved in 40ml of dimethylformamide (DMF) at room temperature, 3 drops of hydrogen peroxide was added, and 2.3ml of triethylamine was slowly added and stirred for 1h, then heated under sealed conditions After reacting for 24 hours at 100°C, a colorless block crystal was obtained. After washing three times with DMF and absolute ethanol, they were dried in air at 80°C. Then, in a vacuum environment, the temperature was raised to 180°C at a rate of 1°C / min and kept for 12h. The yield of the obtained sample is about 80% (0.627g), the quantitative formula of the sample is Zn4O(C8H4O4)3·H2O, the elemental analysis result is: Zn, 33.07; C, 36.52%; the calculation result is: Zn, 33.08; C, 36.64%.

[0034] The above-mentioned IMROF-1 material and palladium content of 5wt% are the Pd / AC catalyst powder ratio, and the catalyst Pd accounts for 5% of the t...

Embodiment 2

[0036] Preparation of IRMOF-1 material: 1.19g (4mmol) Zn(NO 3 ) 2 4H 2 O and 0.34g (2mmol) H 2 BDC (terephthalic acid) was mixed, dissolved in 40ml of dimethylformamide (DMF) at room temperature, 3 drops of hydrogen peroxide was added, and 2.3ml of triethylamine was slowly added and stirred for 1h, then heated under sealed conditions After reacting for 24 hours at 100°C, a colorless block crystal was obtained. After washing three times with DMF and absolute ethanol, they were dried in air at 80°C. Then, in a vacuum environment, the temperature was raised to 180°C at a rate of 1°C / min and kept for 12h. The yield of the obtained sample is about 80% (0.627g), the quantitative formula of the sample is Zn4O(C8H4O4)3·H2O, the elemental analysis result is: Zn, 33.07; C, 36.52%; the calculation result is: Zn, 33.08; C, 36.64%.

[0037]The above-mentioned IMROF-1 material and a palladium content of 15wt% are the Pd / AC catalyst powder ratio, and the catalyst Pd accounts for 0.5% o...

Embodiment 3

[0039] Preparation of IRMOF-1 material: 1.19g (4mmol) Zn(NO 3 ) 2 4H 2 O and 0.34g (2mmol) H 2 BDC (terephthalic acid) was mixed, dissolved in 40ml of dimethylformamide (DMF) at room temperature, 3 drops of hydrogen peroxide was added, and 2.3ml of triethylamine was slowly added and stirred for 1h, then heated under sealed conditions After reacting for 24 hours at 100°C, a colorless block crystal was obtained. After washing three times with DMF and absolute ethanol, they were dried in air at 80°C. Then, in a vacuum environment, the temperature was raised to 180°C at a rate of 1°C / min and kept for 12h. The productive rate of obtained sample is about 80% (0.627g), and the quantitative formula of sample is Zn 4 O(C 8 h 4 o 4 ) 3 ·H 2 O, elemental analysis result: Zn, 33.07; C, 36.52%; calculated result: Zn, 33.08; C, 36.64%.

[0040] The above-mentioned IMROF-1 material and palladium content of 10wt% are the Pd / AC catalyst powder ratio, and the catalyst Pd accounts for...

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Abstract

The invention provides a modified IRMOF-1 material and a preparation method thereof. The raw materials of the modified IRMOF-1 material are composed of an IRMOF-1 material and a palladium catalyst. The palladium catalyst accounts for 0.5-5% of the total weight of the raw materials calculated by palladium. Palladium is introduced into a metal organic framework of the modified IRMOF-1 material, so as to change the adsorption process of hydrogen in the skeleton, and improve the room temperature hydrogen storage capacity.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a modified IRMOF-1 material and a preparation method thereof. Background technique [0002] The development and utilization of hydrogen energy is a possible and important means to solve the global energy crisis and air pollution problems. In the application of hydrogen energy, how to store and transport hydrogen safely and efficiently so that the overall cost can reach an acceptable level is currently a bottleneck problem. Hydrogen storage materials have been a hot topic for researchers from many countries in recent years. However, among the hydrogen storage materials currently studied, there is no material that can better meet the practical goals proposed by the US Department of Energy (DOE). For the hydrogen storage system, in terms of hydrogen storage capacity alone, the development target proposed by DOE is to reach 4.5wt% in 2007, 6wt% in 2010, and 9wt% in 2015...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/00
CPCC01B3/0015Y02E60/32
Inventor 曹伟桑革郑振华朱新亮张志朱宏志石岩
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