A kind of electrode material and its preparation method and application
A technology of electrode materials and raw materials, applied in the field of electrode materials and their preparation, can solve problems such as easy pollution, poor self-supporting ability, and increased equipment maintenance costs
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[0039] The present invention also provides a preparation method of the electrode material described in the above technical solution, comprising the following steps:
[0040] Mix nylon dispersion with zirconia, stabilizer, silica, alumina, carbon nanotubes and graphene to obtain a mixture;
[0041] The mixture is subjected to molding treatment to obtain an electrode material.
[0042] The invention mixes nylon dispersion liquid with zirconium oxide, stabilizer, silicon dioxide, aluminum oxide, carbon nanotube and graphene to obtain a mixture. In the present invention, the dispersion medium of the nylon dispersion is preferably absolute ethanol; the mass concentration of the nylon dispersion is preferably 0.1-1%, more preferably 0.2-0.8%, most preferably 0.4-0.6%.
[0043]The present invention does not have any special limitation on the mixing temperature and method, and the mixing temperature and method well known to those skilled in the art can be used.
[0044] In the prese...
Embodiment 1
[0052] Mix 30g of zirconia, 5g of cerium oxide, 0.1g of yttrium oxide, 10g of silicon dioxide, 3.0g of alumina, 10g of carbon nanotubes and 10g of graphene. After the mixture is obtained, add 5g of nylon ethanol dispersion with a mass concentration of 1%. , to get the mixture;
[0053] The mixture was pressed under a pressure of 80 MPa, pre-sintered at 1100° C. for 30 minutes, and densified at 1400° C. for 4 hours to obtain an electrode material.
[0054] The compressive strength of the electrode material is 1.5GPa, and the toughness is 15MPa·m 1 / 2 , compared with electrode materials without adding carbon nanotubes and graphene (10~12MPa·m 1 / 2 ) has been improved;
[0055] The electrode material is placed in the sample compartment of the Zeta potential meter. At pH = 6, at 25°C, the replacement cycle of the electrode material is 2.5 years, and the resolution in the aqueous solution system can reach 0.1mV. 10 times the accuracy of self-contained electrodes.
[0056] figure...
Embodiment 2
[0058] 50g of zirconia, 5g of yttrium oxide, 10g of silicon dioxide, 2g of alumina, 30g of carbon nanotubes and 20g of graphene were mixed, and after the mixture was obtained, 145g of nylon ethanol dispersion with a mass concentration of 1% was added to obtain a mixture;
[0059] The mixture was pressed under a pressure of 200 MPa, pre-sintered at 900° C. for 60 minutes, and densified at 1400° C. for 4 hours to obtain an electrode material.
[0060] The compressive strength of the electrode material is 3.5GPa, and the toughness is 18MPa·m 1 / 2 , compared with electrode materials without adding carbon nanotubes and graphene (10~12MPa·m 1 / 2 ) has been improved;
[0061] The electrode material is placed in the sample compartment of the Zeta potential meter. At pH=3, at 25°C, the replacement cycle of the electrode material is 5 years, the resolution in the aqueous solution system is 0.1mV, and the accuracy is 0.1mV of the Zeta potential meter. 10 times the accuracy of self-contai...
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