A kind of preparation device and preparation method of mg-c nanocomposite hydrogen storage material
A technology of nano-composite and hydrogen storage material is applied in the field of preparation device of Mg-C nano-composite hydrogen storage material, and can solve the problems of difficult synthesis of magnesium-carbon nano-composite material, complicated high-temperature arc reaction device and high energy consumption in preparation process , to achieve the effect of improving hydrogen absorption kinetics, good performance, temperature and energy consumption reduction
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[0035] The preparation method of Mg-C nanocomposite hydrogen storage material comprises the following steps:
[0036] 1. Rinse the quartz tube 1, add the raw metal Mg, put the raw metal Mg in the graphite sleeve 5 of the quartz tube 1, use a mechanical pump to evacuate the quartz tube 1 through the gas outlet 9 of the quartz tube 1, and pass the quartz tube The gas inlet of 1 is fed with argon gas, and the quartz tube 1 is flushed 2-3 times with argon gas;
[0037] 2. The mixed gas is introduced into the quartz tube 1, and the mixed gas of argon-hydrocarbon gas-hydrogen is introduced through the gas inlet of the quartz tube 1, and the valve between the quartz tube 1 and the mechanical pump is adjusted to make the tube furnace system 2 The whole pressure is maintained between 10-200Pa, preferably 50-100Pa. Wherein the hydrocarbon gas can be any gas containing only C and H, preferably CH 4 and C 2 h 2 . The volume percentage of argon in the mixed gas of argon-hydrocarbon ga...
Embodiment 1
[0043] The preparation of Mg-C nanocomposite hydrogen storage material comprises the following steps:
[0044] 1. Put a graphite sleeve 5 with an internal diameter of 2.5 cm into a quartz tube 1 with an internal diameter of 3 cm, rinse the quartz tube 1, put 0.80 g of magnesium strips with a purity of 99% in the graphite sleeve 5, and cut the magnesium strips into lengths of 2 cm and a rectangle with a width of 0.5 cm, put the quartz tube 1 into the tube furnace so that the position of the magnesium bar is just at the center of the tube furnace, and put the inductance coil 3 on the quartz tube 1, and the inductance coil 3 is arranged on the quartz tube Downstream of 1, use a mechanical pump to evacuate the quartz tube 1 to 0.1Pa through the gas outlet 9 of the quartz tube 1, pass argon gas through the gas inlet of the quartz tube 1 to 1kPa, and then evacuate to 0.1Pa again, repeat 3 times , using argon to flush the inside of the quartz tube 1 three times to remove oxygen and w...
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