Method for preparing cobaltous selenide super-capacitor material through chemical vapor deposition method
A chemical vapor deposition, supercapacitor technology, used in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, gaseous chemical plating, etc. The problem of high resistivity, to achieve the effect of favorable specific surface area, low cost and simple operation
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Embodiment 1
[0029] Use dilute hydrochloric acid, deionized water and ethanol to wash the foamed nickel mesh in turn and dry it: 1mol selenium powder and 1mol cobalt powder are ground and mixed in an agate mortar, then poured into a quartz boat, and then put into a chemical vapor deposition reaction furnace quartz tube middle; place the dry nickel foam net near the mouth of the quartz tube downstream of the air flow; pass in argon gas for 30 minutes to exhaust the air in the furnace, stop ventilation, heat to 950 ° C for 60 minutes, and keep warm at the same time with argon gas at 100 sccm After passing through the quartz tube at a high speed for 60 minutes, stop heating and naturally cool to room temperature; take out the nickel foam, wash it with deionized water and ethanol, and dry it at 60°C for 6 hours to obtain it.
Embodiment 2
[0031] Use dilute hydrochloric acid, deionized water and ethanol to wash the foamed nickel mesh in sequence and then dry it: 2mol selenium powder and 2mol cobalt powder are ground and mixed in an agate mortar, then poured into a quartz boat, and then put into a chemical vapor deposition reaction furnace quartz tube middle; place the dry foamed nickel net near the mouth of the quartz tube downstream of the air flow; pass through the argon gas for 60 minutes to exhaust the air in the furnace, stop the ventilation, heat to 850 ° C for 90 minutes, and keep warm at the same time with argon gas at 50 sccm After passing through the quartz tube at a speed of 90 minutes, stop heating and naturally cool to room temperature; take out the nickel foam, wash it with deionized water and ethanol, and dry it at 60°C for 6 hours to obtain it.
Embodiment 3
[0033] Use dilute hydrochloric acid, deionized water and ethanol to wash the foamed nickel mesh in turn and dry it: 0.5mol selenium powder and 0.5mol cobalt powder are ground and mixed in an agate mortar, then poured into a quartz boat, and then put into a chemical vapor deposition reaction furnace In the quartz tube; place the dry nickel foam net in the downstream of the air flow near the nozzle of the quartz tube; pass in argon gas for 10 minutes to exhaust the air in the furnace, stop the ventilation, heat to 750 ° C for 30 minutes, and keep warm with argon gas at the same time After passing through the quartz tube at a speed of 100 sccm for 30 minutes, stop heating and naturally cool to room temperature; take out the nickel foam, rinse it with deionized water and ethanol, and dry it at 60°C for 6 hours.
[0034] The chemical raw materials selenium powder and cobalt powder used in the above examples are analytically pure.
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