Method for preparing mesoporous material NiAl2O4 without specific surface active agent
A mesoporous and preparation process technology, applied in chemical instruments and methods, inorganic chemistry, nickel compounds, etc., can solve problems such as small number, irregular pore size distribution, material application limitations, etc., to achieve simple operation, reduce production cost, and process The effect of simple equipment
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Embodiment 1
[0029] The preparation steps in this embodiment are as follows:
[0030] (a) Under stirring, dissolve 0.1 mol of aluminum nitrate and 0.05 mol of nickel nitrate and 50 mL of deionized water to form a well-mixed solution;
[0031] (b) 225mL, 1 mol / L ammonium carbonate solution was dropped dropwise into the above solution under constant temperature stirring at 70°C to form a sol;
[0032] (c) aging the above-mentioned uniform sol at a constant temperature of 70 °C for 24 hours, and then transferred to an oven for drying at 110 °C for 12 hours;
[0033] (d) The sample obtained in step c was calcined at 800 °C for 20 hours at a heating rate of 10 °C / min, and then the mesoporous NiAl was obtained by grinding. 2 O 4 Material.
[0034] The product obtained in this example is subjected to XRD pattern determination, and N 2 Determination of BET specific surface area and pore size distribution of materials for adsorption and desorption determination. in from...
Embodiment 2
[0036] Specific steps are as follows:
[0037] (a) Under stirring, dissolve 0.1 mol of aluminum nitrate and 0.05 mol of nickel nitrate in 20 mL of deionized water to form a well-mixed solution;
[0038] (b) 225mL, 1mol / L of ammonium carbonate solution was dropped dropwise into the above solution under constant temperature stirring at 50°C to form a sol;
[0039] (c) The above-mentioned uniform sol was aged at a constant temperature of 50 °C for 24 hours, and then moved to an oven and dried at 110 °C for 12 hours;
[0040] (d) The sample obtained in step c was calcined at 500 °C for 20 hours at a heating rate of 10 °C / min, and then the mesoporous NiAl was obtained by grinding. 2 O 4 Material.
[0041] The pore size distribution curve and N of the product obtained in this example 2 The adsorption-desorption isotherms are as Figure 4 shown. The specific surface of the obtained product is 234.01 m 2 / g, the average pore size is 4.6 nm, and the pore...
Embodiment 3
[0043] Specific steps are as follows:
[0044] (a) Under stirring, dissolve 0.1 mol of aluminum nitrate and 0.05 mol of nickel nitrate and 50 mL of deionized water to form a well-mixed solution;
[0045] (b) 112.5 mL, 2 mol / L of ammonium carbonate solution was dropped dropwise into the above solution under constant temperature stirring at 30 °C to form a sol;
[0046] (c) aging the above-mentioned uniform sol at a constant temperature of 30 °C for 24 hours, and then transferring it to an oven and drying at 110 °C for 12 hours;
[0047] (d) The sample obtained in step c was calcined at 800 °C for 20 hours at a heating rate of 10 °C / min to obtain mesoporous NiAl 2 O 4 Material.
[0048] Figure 5 is the pore size distribution curve of the sample obtained in this example and N 2 Sorption-desorption isotherms. The specific surface of the obtained product is 87.15m 2 / g, the average pore size is 13.5 nm, and the pore volume is 0.30 cm 3 / g, the pore size...
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