a hollow mos 2 Preparation method of microrods
A micro-rod, hollow technology, applied in the direction of molybdenum sulfide, electrical components, battery electrodes, etc., to increase the reaction activity, improve the efficiency of hydrogen production, and improve the efficiency of adsorption
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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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