A review of fluorocarbon sorption on porous materials
A review of fluorocarbon sorption on porous materials
复制标题
DOI：
10.1016/j.micromeso.2021.111654
复制
发表时间：
2021-12
影响因子：
5.2
通讯作者：
Andrew D. Yancey;Sophia J. Terian;B. J. Shaw;Tiana M. Bish;D. Corbin;M. Shiflett
中科院分区：
文献类型：
--
作者：
Andrew D. Yancey;Sophia J. Terian;B. J. Shaw;Tiana M. Bish;D. Corbin;M. Shiflett
自 20 世纪初以来，碳氟化合物通常用于制冷剂、冷却剂、抑制剂、推进剂、半导体、含氟聚合物和其他应用。然而，从 20 世纪 80 年代末开始，由于对臭氧消耗潜值 (ODP) 和全球变暖潜值 (GWP) 的环境担忧，这些化学品受到严格监管。沸石、活性炭和金属有机框架 (MOF) 等多孔材料是目前正在研究的用于减少碳氟化合物和二氧化碳等温室气体 (GHG) 排放的吸附剂。最近的立法要求在未来二十年减少氢氟碳制冷剂的使用，以减少全球变暖，这使得环境修复成为一个相关问题。我们对多孔材料中碳氟化合物的吸附进行了广泛的文献检索，以更好地了解当前和现有的可减少气候变化的分离技术。这篇综述文章讨论了碳氟化合物吸附的应用，涵盖了 20 世纪 40 年代末至今的学术和专利文献。综述了直链烷烃和烯烃碳氟化合物的纯气体吸附以及共沸、共沸和异构混合物分离。详细讨论了分子相互作用、反应性和分子建模等其他主题。
Fluorocarbons have commonly been used for refrigerants, coolants, fire-suppressants, propellants, semiconductors, fluoropolymers, and other applications since the early 20th century. However, starting in the late 1980s these chemicals have been highly regulated due to environmental concerns over ozone depletion potential (ODP) and global warming potential (GWP). Porous materials such as zeolites, activated carbons, and metal-organic frameworks (MOFs) are among the current sorbents being studied to reduce emissions of greenhouse gases (GHGs) including fluorocarbons and carbon dioxide. Recent legislation now requires the reduction of hydrofluorocarbon refrigerants over the next two decades to reduce global warming which makes environmental remediation a relevant issue. An extensive literature search has been conducted for fluorocarbon sorption in porous materials to better understand current and prior separation technologies that can reduce climate change. This review article discusses applications for which fluorocarbon sorption is reported and encompasses both academic and patent literature from the late 1940s to present. Pure gas sorption of straight-chain paraffinic and olefinic fluorocarbons as well as zeotropic, azeotropic, and isomeric mixture separations is reviewed. Additional topics including molecular interactions, reactivity, and molecular modeling are discussed in detail.