Microporous organic polymers for carbon dioxide capture
Microporous organic polymers for carbon dioxide capture
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DOI：
10.1039/c1ee01971f
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发表时间：
2011-10-01
影响因子：
32.5
通讯作者：
Cooper, Andrew I.
中科院分区：
文献类型：
--
作者：
Dawson, Robert;Stoeckel, Ev;Cooper, Andrew I.
人为的二氧化碳排放被认为是全球变暖的原因之一。目前的CO2捕集方法导致大量的能量损失。固体吸附剂是捕获CO2的潜在方法，但吸附剂-吸附剂亲和力在确定此类过程的能量可行性方面至关重要。在这项研究中，CO2的吸附在一系列微孔有机聚合物进行了测试。这些材料在298 K和1 bar下吸附高达2.20 mmol/g CO2，因此将其性能与文献中的相关多孔固体进行比较。CO2吸收和表观表面积和孔径之间的关系进行了描述，这表明，吸附热是重要的低压制度。气体-吸附剂亲和力的化学调节为该领域的改进材料的开发提供了蓝图。
Anthropogenic carbon dioxide emissions are thought to be one cause of global warming. Current methods for CO2 capture result in large energy penalties. Solid adsorbents are a potential method to capture CO2, but the sorbent-sorbate affinity is critical in determining the energetic viability of such processes. In this study, the adsorption of CO2 in a range of microporous organic polymers was tested. These materials adsorb up to 2.20 mmol/g CO2 at 298 K and 1 bar, and thus performance is compared with related porous solids in the literature. The relationship between CO2 uptake and apparent surface area and pore size is described, and this showed that heats of adsorption were important in the low pressure regime. The chemical tuning of gas-sorbent affinity provides a blueprint for the development of improved materials in this area.