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首页> 外文期刊>Coordination chemistry reviews >CO2 sorption behavior of imidazole, benzimidazole and benzoic acid based coordination polymers
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CO2 sorption behavior of imidazole, benzimidazole and benzoic acid based coordination polymers

机译：咪唑，苯并咪唑和苯甲酸基配位聚合物的CO2吸附行为

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Non corrosive gas, such as CO2, is an environment greenhouse pollutant, but at the same time it is a reusable material with a highly attractive application profile and potential as a building block to create added value for the chemical industry. Current technologies for carbon capture are cumbersome, energy intensive and expensive. However, amongst new developments, porous coordination polymers (PCPs) are being viewed as materials with great potential for CO2 capture. The ability to flexibly design and tune properties of such materials results in different levels of affinity for CO2 sorption/desorption. Imidazole/benzimidazole and benzoic acid based coordination polymers are of interest from the view point that various architectures such as rigid, flexible, interpenetrating, etc., can be designed to influence cavity pore size and different types of supramolecular interactions existing within the pores. CO2 sorption, in these structures, not only depends on surface area and void volume but is also influenced by the electronic environment, i.e., functionalization of the pores with either coordinatively unsaturated metal ions or Lewis base groups. In this review, other important influencing factors including strong non-covalent interactions (it-n bonding, anion-ic bonding, CH-it bonding, and H-bonding) present on the pore walls, facilitating selective adsorption of CO2 molecules in substantial quantities (even if Langmuir surface area is very low) are discussed. These interaction potentials in the pores decide quantitatively the sorption of CO2 as function of temperature and pressure. (C) 2016 Elsevier B.V. All rights reserved.
机译：非腐蚀性气体（例如CO2）是一种环境温室气体污染物，但同时也是一种可重复使用的材料，具有极具吸引力的应用范围和潜力，可为化工行业创造附加值。当前用于碳捕获的技术麻烦，耗能且昂贵。但是，在新的发展中，多孔配位聚合物（PCP）被视为具有巨大的CO2捕集潜力的材料。灵活设计和调整此类材料的性能的能力导致对CO2吸附/解吸的亲和力水平不同。从以下观点出发，基于咪唑/苯并咪唑和苯甲酸的配位聚合物是令人关注的：可以设计各种结构，例如刚性，柔性，互穿等，以影响空腔的孔径和存在于孔中的不同类型的超分子相互作用。在这些结构中，CO 2的吸附不仅取决于表面积和空隙体积，而且还受电子环境的影响，即，具有配位不饱和金属离子或路易斯碱基团的孔的功能化。在这篇综述中，孔壁上还存在其他重要的影响因素，包括强大的非共价相互作用（it-n键，阴离子-离子键，CH-it键和H键），有助于大量选择性吸附CO2分子（即使Langmuir表面积很小）也进行了讨论。孔中的这些相互作用势根据温度和压力定量地决定了CO2的吸附。 （C）2016 Elsevier B.V.保留所有权利。

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