Charged-particle-irradiation-resistant density-gradient-type high-hydrogen-storage composite film layer and preparation method thereof
A technology of density gradient and charged particles, which is applied in the direction of coating, metal material coating process, gaseous chemical plating, etc., can solve the problems of poor radiation protection performance, achieve improved radiation protection ability, uniform and controllable thickness, and improve bonding effect of ability
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[0029] Embodiment 1: In this embodiment, a method for preparing a density gradient type high hydrogen storage composite film layer resistant to irradiation by charged particles is achieved by the following steps:
[0030] Step 1. In Co with an average particle size of 500nm 9 S 8 ZnO film is deposited on the surface of nanoparticles to obtain ZnO-Co 9 S 8 ,specifically is:
[0031] Will Co 9 S 8 The nanoparticles are placed in the deposition chamber and vacuumed to a vacuum degree of 5×10 -3 Torr, then pass high-purity nitrogen with a mass concentration of 99.99% until the pressure in the deposition chamber is 0.15 Torr, keep the chamber temperature at 150°C, and repeat 230 growth deposition cycles;
[0032] In step one, the atomic layer deposition method is used in Co 9 S 8 The deposition of a ZnO film on the surface of the nanoparticles is specifically accomplished by the following operations:
[0033] Will Co 9 S 8 The nanoparticles are placed in the deposition chamber and vacuumed ...
Example Embodiment
[0052] Embodiment 2: This embodiment is different from Embodiment 1 in that according to Co 9 S 8 The ratio of mass to graphene is 4:1. The ZnO-Co obtained in step 1 9 S 8 Adding to graphene, other steps and parameters are the same as in Example 1.
Example Embodiment
[0053] Embodiment 3: This embodiment is different from embodiment 1 in that according to Co 9 S 8 The ratio of mass to graphene is 6:1, and the ZnO-Co obtained in step 1 9 S 8 Adding to graphene, other steps and parameters are the same as in Example 1.
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