Co-b amorphous alloy porous microsphere catalyst for ammonia boranol to explain hydrogen and preparation method thereof
A technology of amorphous alloys and porous microspheres, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of high application cost and achieve low cost , reduced preparation cost, and facilitated rapid separation and recovery
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Embodiment 1
[0024] A method for preparing a Co-B amorphous alloy porous microsphere catalyst for ammonia boranol to explain hydrogen, comprising the following steps:
[0025] Step 1: At room temperature, dissolve 10g of polyvinylpyrrolidone (PVP) into 100mL of water, ultrasonically treat for 30min, fully dissolve, then add 0.05mol of cobalt acetate, continue ultrasonically until completely dissolved, and obtain a transparent cobalt salt solution;
[0026] Step 2: Add to 100mL with a concentration of 0.05 mol·L in an ice-water bath -1 Add 0.001mol of cetyltrimethylammonium bromide to the ethylenediamine aqueous solution, ultrasonically disperse for 30min, fully dissolve, and then add 0.05mol of NaBH 4 Solid, continue to sonicate until completely dissolved to get NaBH 4 Alkaline solution, keep away from light;
[0027] Step 3: According to n(Co 2+ ) / n(BH 4 - ) = 0.18, respectively pipette 15mL of cobalt salt solution and 85mL of basic NaBH 4 solution, under nitrogen protection, NaBH a...
Embodiment 2
[0031] A method for preparing a Co-B amorphous alloy porous microsphere catalyst for ammonia boranol to explain hydrogen, comprising the following steps:
[0032] Step 1: Dissolve 20g of PVP into 100mL of water at room temperature, sonicate for 30 minutes, fully dissolve, then add 0.1mol of cobalt chloride, continue sonicating until completely dissolved, and obtain a transparent cobalt salt solution;
[0033] Step 2: Add to 100mL with a concentration of 0.15 mol·L in an ice-water bath -1 Add 0.003 mol of tetradecyltrimethylammonium bromide to the 1,2-propanediamine aqueous solution, ultrasonically disperse for 30 minutes, fully dissolve, and then add 0.1 mol of NaBH 4 Solid, continue to sonicate until completely dissolved to get NaBH 4 Alkaline solution, keep away from light;
[0034] Step 3: According to n(Co 2+ ) / n(BH 4 - ) = 5.70, respectively pipette 85mL of cobalt salt solution and 15mL of alkaline NaBH 4 solution, under nitrogen protection, NaBH at room temperature...
Embodiment 3
[0038] A method for preparing a Co-B amorphous alloy porous microsphere catalyst for ammonia boranol to explain hydrogen, comprising the following steps:
[0039] Step 1: Dissolve 15g of PVP into 100mL of water at room temperature, sonicate for 30 minutes, fully dissolve, then add 0.075 mol of cobalt sulfate, continue sonicating until completely dissolved, and obtain a transparent cobalt salt solution;
[0040] Step 2: Add to 100mL with a concentration of 0.10 mol·L in an ice-water bath -1 Add 0.002mol of dodecyltrimethylammonium bromide to the ethylenediamine aqueous solution, ultrasonically disperse for 30min, fully dissolve, and then add 0.075mol of NaBH 4 Solid, continue to sonicate until completely dissolved to obtain NaBH 4 Alkaline solution, keep away from light;
[0041] Step 3: According to n(Co 2+ ) / n(BH 4 - ) = 2.90, respectively pipette 74.5mL of cobalt salt solution and 25.5mL of alkaline NaBH 4 solution, under nitrogen protection, NaBH at room temperature ...
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