A metal/carbon coated boron-based composite fuel and its preparation method
A composite fuel, carbon coating technology, applied in attack equipment, compressed gas generation, nanotechnology, etc., can solve the problems of incomplete combustion of amorphous boron powder, and achieve high yield, high sample purity, and simple operation. Effect
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Embodiment 1
[0022] Take 0.2 grams of copper chloride, dissolve it in 50 milliliters of alcohol, stir to dissolve, then weigh 8.8 grams of boron, add it to the solution and stir for 30 minutes, weigh 0.35 grams of dimethylglyoxime and add it to the solution, continue stirring for 30 minutes, then statically It can be seen that the solution gradually becomes clear, and after filtration, it is washed with pure water to remove residual acid and other soluble impurities in the solution. The resulting filter cake was fully dried in a 60°C oven, and the dried filter cake was heated to 350°C at a rate of 5°C / min under a nitrogen atmosphere, kept for one hour, and then gradually cooled to room temperature to obtain copper / Carbon-coated boron-based composite fuels.
[0023] Copper / carbon coated boron-based composite fuel was characterized by X-ray powder diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). figure 1 , HRTEM photos are attached figure 2 . Use an oxygen...
Embodiment 2
[0025] Take 0.2 grams of nickel chloride, dissolve it in 50 milliliters of alcohol, stir to dissolve, then weigh 9 grams of boron, add it to the solution and stir for 30 minutes, weigh 0.36 grams of dimethylglyoxime and add it to the solution, continue to stir for 30 minutes, then statically It can be seen that the solution gradually becomes clear, and after filtration, it is washed with pure water to remove residual acid and other soluble impurities in the solution. The obtained filter cake was fully dried in a 60°C oven, and the dried filter cake was heated to 400°C at a heating rate of 5°C / min under a nitrogen atmosphere, kept for one hour for carbonization, and then carbonized at a heating rate of 10°C / min. Speed heating to 600°C and heat preservation for secondary carbonization, and then gradually cooling to room temperature to obtain nickel / carbon-coated boron-based composite fuel.
[0026] The nickel / carbon-coated boron-based composite fuel was characterized by X-ray ...
Embodiment 3
[0028] Take 0.2 grams of palladium chloride, dissolve it in 50 milliliters of alcohol, stir and dissolve, then weigh 7.6 grams of boron, add it to the solution and stir for 30 minutes, weigh 0.26 grams of dimethylglyoxime and add it to the solution, continue to stir for 30 minutes, then statically It can be seen that the solution gradually becomes clear, and after filtration, it is washed with pure water to remove residual acid and other soluble impurities in the solution. The obtained filter cake was fully dried in a 60°C oven, and the dried filter cake was heated to 300°C at a heating rate of 5°C / min under a nitrogen atmosphere, kept for one hour for carbonization, and then carbonized at a heating rate of 10°C / min. Speed heating to 500°C and heat preservation for secondary carbonization, and then gradually cooling to room temperature to obtain nickel / carbon-coated boron-based composite fuel.
[0029] The palladium / carbon-coated boron-based composite fuel was characterized ...
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