The development of high‐performing materials that, at the same time, can be synthesized from cheap precursors, such as biowaste, is of critical importance for the realization of advanced and sustainable electrochemical double layer capacitors (EDLCs). Herein, reported for the first time, the use of casein extracted from expired milk for the realization of activated carbon (AC), suitable for EDLCs, is proposed. Utilizing this abundant and cheap precursor it is possible to obtain microporous AC that, in organic electrolytes (conventional and non), displays capacitance value comparable with those of commercially available ACs.

中文翻译：

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酪蛋白衍生的活性炭：将过期的牛奶变成电化学电容器的活性材料

同时，可以从廉价的前体（例如生物废料）合成的高性能材料的开发对于实现先进且可持续的电化学双层电容器（EDLC）至关重要。在此，首次报道了从过期牛奶中提取的酪蛋白用于实现适于EDLC的活性炭（AC）的用途。利用这种丰富而廉价的前体，可以获得在有机电解质（常规和非常规）中显示出与市售AC相当的电容值的微孔AC。