KOH activation of solid residue of Japanese citron after extraction by microwave process and property as EDLC electrode
KOH activation of solid residue of Japanese citron after extraction by microwave process and property as EDLC electrode
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DOI：
10.1007/s10934-019-00855-2
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发表时间：
2020-01
影响因子：
2.6
通讯作者：
Toshiki Tsubota;Yukina Hohshi;T. Ohno;S. Kumagai
中科院分区：
文献类型：
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作者：
Toshiki Tsubota;Yukina Hohshi;T. Ohno;S. Kumagai
日本柚子经压缩榨汁、提取油后的固体残渣被用作活性炭的原料，以证实Citrease在多种高价值产品中的级联使用。碳化样品中的无机化合物大部分为K4H2(CO3)3·1.5 H2O和CaCO3。尽管这些无机化合物的量与碳化温度无关，但大多数这些无机化合物通过KOH活化过程被去除。 KOH活化后样品的BET比表面积随着活化KOH添加量的增加而增加，当KOH添加量大于67 wt%时，该值大于1900 m2g−1。通过Langmuir法、t法、αs法、MP法、BJH法、INNES法等多种方法计算孔径和孔体积，以详细分析与孔隙相关的表面状况。在 75 wt% KOH 下激活的样品的电容值为 1 mV s−1 时的 157 F g−1。
The solid residue of Japanese citron after its compression to obtain juice and then the extraction of oil was used as the raw material of activated carbon in order to substantiate the cascading use of Citrease for several high value products. Most of the inorganic compounds in the carbonized samples were K4H2(CO3)3·1.5 H2O and CaCO3. Although the amount of these inorganic compounds was independent of the carbonization temperature, most of these inorganic compounds were removed by the KOH activation process. The BET specific surface area of the sample after the KOH activation increased with the increasing amount of KOH added for activation, and the value was greater than 1900 m2g−1when the amount of KOH was greater than 67 wt%. The pore sizes and pore volumes were calculated by several methods, such as the Langmuir, t method, αs method, MP method, BJH method, and INNES method, in order to analyze in detail the surface condition related to the pores. The capacitance value of the sample activated at KOH 75 wt% was 157 F g−1at 1 mV s−1.