Advances and applications of supercritical carbon dioxide microemulsions with or without ionic liquids

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2025-03-21 DOI:10.1016/j.supflu.2025.106603

Dan Zhou , Wen Yu , Jianfei Sun , Jianlei Qi , Jianzhong Yin

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引用次数: 0

Abstract

Supercritical carbon dioxide (scCO₂) has gained prominence in green chemistry due to its eco-friendly nature and unique properties, including low viscosity, nearly zero surface tension, and tunable characteristics. However, its nonpolar nature limits applications to nonpolar systems. The development of scCO₂ microemulsions with polar cores, especially those incorporating ionic liquids, addresses this limitation and expands its use across diverse fields such as cleaning, personal care, food, pharmaceuticals, materials science, and oil and gas recovery, while reducing environmental impact. Despite progress, challenges remain in understanding the thermodynamic phase behavior, nanostructure formation, and molecular dynamics of these systems. Additionally, their potential in catalysis, metal-organic frameworks (MOFs) synthesis, and polymer foaming is underexplored. This review systematically examines advancements in scCO₂ microemulsions, bridging fundamental research with applications, and highlights their promise for driving innovation in sustainable industrial processes and advancing green chemical solutions.

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含或不含离子液体的超临界二氧化碳微乳的研究进展及应用

超临界二氧化碳（scCO2）由于其生态友好的性质和独特的性能，包括低粘度、几乎为零的表面张力和可调的特性，在绿色化学中获得了突出的地位。然而，它的非极性性质限制了它在非极性体系中的应用。具有极性核心的scCO2微乳液的开发，特别是那些含有离子液体的微乳液，解决了这一限制，并将其应用扩展到清洁，个人护理，食品，制药，材料科学，石油和天然气开采等不同领域，同时减少了对环境的影响。尽管取得了进展，但在理解这些系统的热力学相行为、纳米结构形成和分子动力学方面仍然存在挑战。此外，它们在催化、金属有机框架（MOFs）合成和聚合物发泡方面的潜力尚未得到充分探索。本综述系统地考察了scCO2微乳液的进展，将基础研究与应用联系起来，并强调了它们在推动可持续工业过程创新和推进绿色化学解决方案方面的前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.