以酚醛-糠醛基炭气凝胶为电极,用恒电位仪提供直流电压,在静态电吸附装置进行了NaCl溶液电吸附试验.考察了NaCl溶液浓度、炭气凝胶电极厚度及施加的电位等因素对电吸附的影响.研究表明,随着NaCl溶液浓度的增加,电吸附量明显增加.在低浓度下,微孔的"电场交叠效应"非常显著.0.6V～2.0V范围的电吸附试验表明,电位在1.5V以下电吸附量随电位改变异常显著,1.5V以后变化趋缓.炭气凝胶电极厚度在0.5 nm～1.5 mm范围增加时,电吸附量呈现单调减少的趋势.在电压为1.2 V厚度为0.5 mm时,其电吸附量达到12.7 mg/gCA.理想的电吸附电极应富含中孔并尽可能降低电极厚度.
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