A method for the synthesis of low crystallinity hydrotalcite and the regulation of interlayer spacing
A low-crystallinity, hydrotalcite technology, used in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve problems such as shortening the cycle life of supercapacitors, improve conductivity and electrochemical performance, increase the number, improve Effects of Capacitive Performance
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Embodiment 1
[0025] S1, preparation concentration is the soluble salt solution of 0.01mol / L manganese;
[0026] S2, preparation concentration is the soluble salt solution of 0.03mol / L nickel;
[0027] S3, mixing the solution prepared in step S1 and the solution prepared in step S2, and stirring evenly;
[0028] S4, adding sodium glutamate to the solution obtained in step S3, the molar ratio of the sodium glutamate to the metal ion in step S1 and step S2 is 2:1, and stir to obtain a mixed solution;
[0029] S5, in the solution that forms after step S4, add the hexamethamine that concentration is 0.04mol / L as precipitating agent, obtain homogeneous mixed solution through stirring;
[0030] S6. Put the mixed solution formed after step S5 into a hydrothermal reaction vessel with a filling capacity of 50% in a hydrothermal reaction vessel with a volume of 200 ml, and stop the reaction after the preset temperature is 160° C. and kept warm for 2 hours.
[0031] S7. Filter out the precipitate fr...
Embodiment 2
[0036] S1, preparation concentration is the soluble salt solution of 0.18mol / L manganese;
[0037] S2, preparation concentration is the soluble salt solution of 0.18mol / L cobalt;
[0038] S3, mixing the solution prepared in step S1 and the solution prepared in step S2, and stirring evenly;
[0039] S4, adding sodium glutamate to the solution obtained in step S3, the molar ratio of the sodium glutamate to the metal ion in step S1 and step S2 is 4:1, and stir to obtain a mixed solution;
[0040] S5, in the solution that forms after step S4, add the hexamethamine that concentration range is 1.08mol / L as precipitating agent, obtain homogeneous mixed solution through stirring;
[0041] S6. Put the mixed solution formed after step S5 into a hydrothermal reaction vessel with a filling capacity of 60% in a hydrothermal reaction vessel with a volume of 150 ml, and stop the reaction after the preset temperature is 120° C. and kept warm for 6 hours;
[0042] S7. Filter out the precipit...
Embodiment 3
[0047] S1, preparation concentration is the soluble salt solution of 0.06mol / L manganese;
[0048] S2, preparation concentration is the soluble salt mixed solution of 0.12mol / L nickel, cobalt, nickel, cobalt molar ratio is 1:1;
[0049] S3, mixing the solution prepared in step S1 and the solution prepared in step S2, and stirring evenly;
[0050] S4, adding sodium glutamate to the solution obtained in step S3, the molar ratio of the sodium glutamate to the metal ion in step S1 and step S2 is 6:1, and stir to obtain a mixed solution;
[0051] S5, in the solution that forms after step S4, add the hexamethamine that concentration range is 0.36mol / L as precipitating agent, obtain homogeneous mixed solution through stirring;
[0052] S6. Put the mixed solution formed after step S5 into a hydrothermal reaction vessel with a volume of 100 ml at a filling capacity of 80%, and stop the reaction after the preset temperature is 140° C. and kept warm for 4 hours;
[0053] S7. Filter out...
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