Preparation method and application of a novel cobalt complex crystal material
A technology of crystal materials and cobalt complexes, applied in the field of photocatalysis, can solve the problems of high hydrogen desorption temperature, poor reversibility of hydrogen absorption, hindering the practical process, etc., and achieve high yield, high catalytic efficiency and good catalytic effect Effect
Active Publication Date: 2020-09-22
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology
In recent years, Li-B-N-H hydrogen storage materials have attracted much attention due to their high hydrogen storage capacity, but their high hydrogen desorption temperature and poor reversibility of hydrogen absorption have seriously hindered their practical application.
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Embodiment
[0030] Embodiment A kind of preparation method of cobalt complex crystal material:
[0031] Step 1) Preparation of reaction solution, weigh 582.06 mg cobalt nitrate hexahydrate and add 10 ml distilled water to magnetically stir to obtain a clear cobalt nitrate solution, then weigh 441.39 mg 2,4,6-tris(4-carboxyphenyl)-1 , 3,5-triazine and 198.22mg 1,10-phenanthroline were added to 15 ml N,N-dimethylformamide solution and magnetically stirred to obtain a clear mixed solution, and then the above two solutions were mixed magnetically stirred for 1.5 h to obtain the reaction solution.
[0032]Step 2) Preparation of cobalt complex crystal material, put the reaction solution in step (1) into the reactor and place it in a 120°C oven for 56 hours. After the reaction, control the oven to cool down to room temperature at 5°C / min, and let it stand for treatment After 3 days, the product was filtered, washed three times with distilled water and N,N-dimethylformamide, and dried in an oven...
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Abstract
The invention discloses a cobalt complex crystal material. The cobalt complex crystal material is prepared in the following steps: performing the solvent hot-method reaction for cobalt nitrate hexahydrate, 2,4,6-tri(4-carboxy phenyl)-1,3,5-triazine and 1,10-phenanthroline, then filtering, and drying. The specific surface area is 5.2 m<2> g<-1>, and the aperture is mainly distributed in the range of 2.7nm to 10nm. The preparation method comprises the following steps: (1) preparing a reaction solution; and (2) preparing the cobalt complex crystal material. The cobalt complex crystal material isused as a catalytic LiBH4-2LiNH2 system, under the condition of 205 DEG C, the LiBH4-2LiNH2 system releases 9.0 to 10.1 percent by weight of hydrogen which accounts for 90 to 98 percent of the total hydrogen release amount (10.4 percent by weight). The material prepared in the invention is novel, excellent in catalytic performance and wide in application prospect in the field of the new energy preparation.
Description
technical field [0001] The invention relates to the field of photocatalysis, in particular to a cobalt complex crystal material and its preparation method and application. Background technique [0002] Fossil energy is a non-renewable energy source. As the world population continues to increase, human beings develop and utilize more and more fossil energy sources, which will inevitably lead to the depletion of fossil energy sources. At the same time, the combustion of fossil fuels produces a large amount of greenhouse gases (CO 2 ) and harmful gases (SO 2 ,NO X etc.), causing a series of environmental problems such as global warming and air pollution. Therefore, it is urgent to seek a kind of renewable green new energy. Hydrogen has abundant sources, high energy density, and clean combustion products, so it has attracted people's attention and is considered to be the most potential alternative energy source. The development and utilization of hydrogen energy is a systema...
Claims
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IPC IPC(8): C08G83/00B01J31/22C01B3/06
CPCB01J31/1691B01J31/2243B01J2531/845C01B3/001C01B3/065C08G83/008Y02E60/32Y02E60/36
Inventor 韦思跃孙立贤徐芬吴燚鹏于芳
Owner GUILIN UNIV OF ELECTRONIC TECH