Here, the facile synthesis of four-length-scaled (ultramicro-micro-meso-macroporous) hierarchically structured porous carbon nanocomposite by an emulsion-template strategy is reported. This previously unreported combination of zeolite nanocrystals embedded in the walls of microcellular carbon foams gives unique textural and structural properties, which result in their excellent ability to selectively capture CO2 owing to the presence of ultra-micropores. The zeolite-microcellular carbon foam synergism delivers an adsorbent with a significantly enhanced CO2 capture capacity of up to 5 mmol g-1 , CO2 /N2 selectivity of up to 80, and an outstanding multi-cycle capture performance under humid conditions (70 % performance retention after 30 regeneration cycles). More impressively, the electrically conductive carbon framework enables Joule heating and cooling, and thus fast and energy-efficient regeneration is possible, with an estimated energy consumption of only about 12 kWh.

中文翻译：

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嵌入微孔碳泡沫中的沸石纳米晶体，作为具有节能再生特性的高性能CO2捕获吸附剂。

在此，报道了通过乳液-模板策略容易地合成四长度规模的（超微-微-介观-大孔）分级结构的多孔碳纳米复合材料。嵌入在微孔碳泡沫壁中的沸石纳米晶体的这种先前未报道的组合具有独特的结构和结构特性，由于存在超微孔，因此具有出色的选择性捕获CO2的能力。沸石-微孔碳泡沫协同作用可提供一种吸附剂，可显着提高高达5 mmol g-1的CO2捕获能力，高达80的CO2 / N2选择性以及在潮湿条件下出色的多循环捕获性能（性能为70％ 30个再生周期后保留）。更令人印象深刻的是