Hollow MoS2 microrod and preparation method thereof
A micro-rod, hollow technology, applied in the direction of electrical components, battery electrodes, circuits, etc., to achieve the effects of increasing reaction activity, improving hydrogen production efficiency, and improving adsorption efficiency
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Embodiment 1
[0026] (1) The ammonium molybdate of 1.5g is dissolved in the ammonium sulfide solution of 20ml and is stirred until dissolving, obtains solution A;
[0027] (2) The obtained solution A was stirred for 1 h at a stirring speed of 100 r / min in a magnetic stirrer to obtain red crystals;
[0028] (3) The red crystals obtained in (2) above were washed and filtered with absolute ethanol until the filtrate was colorless, and the obtained red crystals were dried at 50°C.
[0029] (4) Put the dry crystal obtained in (3) in a tube furnace, and calcinate at 750°C for 3 hours at a nitrogen flow rate of 50ml / min, and cool down after the calcination to obtain MoS with a hollow structure 2 Micron rod powder.
[0030] The hollow-structured MoS prepared above 2 The X-ray diffraction pattern of microrods is as figure 1 As shown, its diffraction peaks are consistent with the standard spectrum of hexagonal molybdenum disulfide, indicating that the obtained product is pure MoS 2 . MoS prepare...
Embodiment 2
[0036] 1) Dissolve 3g of ammonium molybdate in 50ml of ammonium sulfide solution and stir until dissolved to obtain solution A;
[0037] 2) Stir the obtained solution A for 1.5 h at a stirring speed of 150 r / min in a magnetic stirrer to obtain red crystals;
[0038] 3) The red crystals obtained in the above 2) were washed and filtered with absolute ethanol until the filtrate was colorless, and the obtained red crystals were dried at 60°C.
[0039] 4) Place the dry crystal obtained in 3) in a tube furnace, and calcinate at 800°C for 4 hours at a nitrogen flow rate of 70ml / min, and cool down after the calcination to obtain MoS with a hollow structure 2 Micron rod powder.
[0040] The hollow-structured MoS prepared above 2 The microrods are about 1.5 μm in diameter and about 4 μm in length. Transmission electron microscope pictures as image 3 As shown, it is shown that the microrods are composed of ultrathin nanosheet stacks, and the specific surface test shows that the holl...
Embodiment 3
[0046] 1) Dissolve 2g of ammonium molybdate in 100ml of ammonium sulfide solution and stir until dissolved to obtain solution A;
[0047] 2) Stir the obtained solution A for 3 h at a stirring speed of 250 r / min in a magnetic stirrer to obtain red crystals;
[0048] 3) The red crystals obtained in the above 2) were washed and filtered with absolute ethanol until the filtrate was colorless, and the obtained red crystals were dried at 45°C.
[0049] 4) Place the dry crystal obtained in 3) in a tube furnace, and calcinate at 700°C for 5 hours at a nitrogen flow rate of 100ml / min, and cool down after the calcination to obtain MoS with a hollow structure 2 Micron rod powder.
[0050] The hollow-structured MoS prepared above 2 The diameter of the microrod powder is about 5 μm, and the length is about 16 μm. BET test results show that MoS 2 The specific surface area of the microsphere is 35m 2 / g.
[0051] The hollow-structured MoS prepared above 2 Microrods are used in the f...
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