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GARLIC SKIN-BASED ACTIVATED CARBON ELECTRODE MATERIAL FOR USE WITH SUPERCAPACITOR AND PREPARATION METHOD

机译:超级电容器用大蒜皮基活性炭电极材料及其制备方法

摘要

Disclosed in the present invention are a garlic skin-based activated carbon electrode material for use with a supercapacitor and a preparation method. Heating garlic skin to 550-700°C in an inert atmosphere; keeping the temperature constant for a period of time to carry out carbonization and obtaining a carbonized garlic skin material; then adding the carbonized garlic skin material into an alkali metal hydroxide solution and carrying out high-temperature immersion for a period of time to obtain an immersed material; subsequently heating the immersed material to 400-450°C to carry out low temperature activation; after carrying out low temperature activation for a period of time, continuing to heat the immersed material to 700-850°C to carry out high temperature activation, and obtaining an activated material after carrying out high temperature activation for a period of time; lastly, carrying out post-processing on the activated material to obtain activated carbon. The present invention causes activated carbon to be completely activated, increasing the specific surface area of the activated carbon material, and improving the energy density of supercapacitors.
机译:本发明公开了一种与超级电容器一起使用的大蒜皮类活性炭电极材料及其制备方法。在惰性气氛下将大蒜皮加热至550-700°C;在一段时间内保持温度恒定以进行碳化并获得碳化的大蒜皮材料;然后将碳化的大蒜皮材料加入碱金属氢氧化物溶液中,高温浸渍一段时间,得到浸渍材料。随后将浸渍的材料加热至400-450℃以进行低温活化;进行一段时间的低温活化后,继续将浸渍的材料加热至700-850℃进行高温活化,再进行高温活化一段时间后得到活化材料。最后,对活性物质进行后处理以获得活性炭。本发明使活性炭被完全活化,增加了活性炭材料的比表面积,并改善了超级电容器的能量密度。

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