MOF-Based Membranes for Gas Separations

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(16), P. 8161 - 8266

Published: July 1, 2020

Metal–organic frameworks (MOFs) represent the largest known class of porous crystalline materials ever synthesized. Their narrow pore windows and nearly unlimited structural chemical features have made these significant interest for membrane-based gas separations. In this comprehensive review, we discuss opportunities challenges related to formation pure MOF films mixed-matrix membranes (MMMs). Common emerging separation applications are identified, membrane transport theory MOFs is described contextualized relative governing principles that describe in polymers. Additionally, cross-cutting research using advanced metrologies computational techniques reviewed. To quantify performance, introduce a simple performance score has been tabulated all literature data compiled review. These reported on upper bound plots, revealing classes consistently demonstrate promising performance. Recommendations provided with intent identifying most directions field terms fundamental science eventual deployment commercial

Language: Английский

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Ionic liquids: a brief history

Biophysical Reviews, Journal Year: 2018, Volume and Issue: 10(3), P. 691 - 706

Published: April 26, 2018

Abstract There is no doubt that ionic liquids have become a major subject of study for modern chemistry. We used to ever more publications in the field each year, although there some evidence this beginning plateau at approximately 3500 papers year. They been several reviews and books, dealing with different applications aspects their behaviours. In article, I will show little how interest grew developed.

Language: Английский

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NHCs in Main Group Chemistry

Chemical Reviews, Journal Year: 2018, Volume and Issue: 118(19), P. 9678 - 9842

Published: July 3, 2018

Since the discovery of first stable N-heterocyclic carbene (NHC) in beginning 1990s, these divalent carbon species have become a common and available class compounds, which found numerous applications academic industrial research. Their important role as two-electron donor ligands, especially transition metal chemistry catalysis, is difficult to overestimate. In past decade, there has been tremendous research attention given low-coordinate main group element compounds. Significant progress achieved stabilization isolation such Lewis acid/base adducts with highly tunable NHC ligands. This allowed investigation novel types compounds unique electronic structures opened new opportunities rational design organic catalysts materials. Review gives general overview this research, basic synthetic approaches, key features NHC–main adducts, might be useful for broad community.

Language: Английский

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Sorbents for the Direct Capture of CO₂ from Ambient Air

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 59(18), P. 6984 - 7006

Published: Aug. 5, 2019

The urgency to address global climate change induced by greenhouse gas emissions is increasing. In particular, the rise in atmospheric CO2 levels generating alarm. Technologies remove from ambient air, or "direct air capture" (DAC), have recently demonstrated that they can contribute "negative carbon emission." Recent advances surface chemistry and material synthesis resulted new generations of sorbents, which may drive future DAC its large-scale deployment. This Review describes major types sorbents designed capture are categorized sorption mechanism: physisorption, chemisorption, moisture-swing sorption.

Language: Английский

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The peculiar effect of water on ionic liquids and deep eutectic solvents

Chemical Society Reviews, Journal Year: 2018, Volume and Issue: 47(23), P. 8685 - 8720

Published: Jan. 1, 2018

Comprehensive review of unique effects water on ionic liquids and deep eutectic solvents observed in experimental theoretical studies.

Language: Английский

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Current status of CO2 chemical absorption research applied to CCS: Towards full deployment at industrial scale

Applied Energy, Journal Year: 2019, Volume and Issue: 260, P. 114313 - 114313

Published: Dec. 18, 2019

Language: Английский

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Carbon dioxide capture using liquid absorption methods: a review

Environmental Chemistry Letters, Journal Year: 2020, Volume and Issue: 19(1), P. 77 - 109

Published: Sept. 18, 2020

Language: Английский

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Role of solvents in CO2 capture processes: The review of selection and design methods

Renewable and Sustainable Energy Reviews, Journal Year: 2019, Volume and Issue: 114, P. 109299 - 109299

Published: Aug. 10, 2019

Language: Английский

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Carbon Capture From Flue Gas and the Atmosphere: A Perspective

Frontiers in Energy Research, Journal Year: 2020, Volume and Issue: 8

Published: Dec. 15, 2020

Climate change has become a worldwide concern with the rapid rise of atmospheric Co2 concentration. To mitigate emissions, research and development efforts in capture separation both from stationary sources high concentrations (e.g., coal-fired power plant flue gas) directly atmosphere have grown significantly. Much progress been achieved, especially within last twenty years. In this perspective, we first briefly review current status carbon technologies including absorption, adsorption, membrane, biological capture, cryogenic separation, compare their advantages disadvantages. Then, focus mainly on recent advances membrane technologies. Even though numerous optimizations materials processes pursued, implementing single process is still quite energy-intensive or costly. address challenges, provide our perspectives future directions development, that is, combination gas recycling hybrid system, one-step integrated conversion as they potential to overcome technical bottlenecks technologies, offering significant improvement energy efficiency cost-effectiveness.

Language: Английский

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Harnessing Filler Materials for Enhancing Biogas Separation Membranes

Chemical Reviews, Journal Year: 2018, Volume and Issue: 118(18), P. 8655 - 8769

Published: Aug. 23, 2018

Biogas is an increasingly attractive renewable resource, envisioned to secure future energy demands and help curb global climate change. To capitalize on this membrane processes state-of-the-art membranes must efficiently recover methane (CH4) from biogas by separating carbon dioxide (CO2). Composite (a.k.a. mixed-matrix) membranes, prepared common polymers rationally selected/engineered fillers, are highly promising for application. This review comprehensively examines filler materials that capable of enhancing the CO2/CH4 separation performance polymeric membranes. Specifically, we highlight novel synthetic strategies engineering develop high-performance composite Besides, as matrix components (polymers) largely dictate overall gas performances, introduce a new empirical metric, "Filler Enhancement Index" ( Findex), aid researchers in assessing effectiveness fillers big data perspective. The Findex systematically decouples effect polymer matrices critically evaluates both conventional emerging map out direction next-generation (bio)gas Beyond separation, relevance broader community with interests other processes, well water treatment applications.

Language: Английский

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