Advanced Materials for CO2 Capture and Storage: A Comprehensive Review of Current Progress and Future Prospects

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115881 - 115881

Опубликована: Март 1, 2025

Язык: Английский

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Direct Air Capture of CO₂ Using Amine/Alumina Sorbents at Cold Temperature

ACS Environmental Au, Год журнала: 2023, Номер 3(5), С. 295 - 307

Опубликована: Июнь 29, 2023

Rising CO2 emissions are responsible for increasing global temperatures causing climate change. Significant efforts underway to develop amine-based sorbents directly capture from air (called direct (DAC)) combat the effects of However, sorbents' performances have usually been evaluated at ambient (25 °C) or higher, most often under dry conditions. A significant portion natural environment where DAC plants can be deployed experiences below 25 °C, and always contains some humidity. In this study, we assess adsorption behavior amine (poly(ethyleneimine) (PEI) tetraethylenepentamine (TEPA)) impregnated into porous alumina cold (−20 humid capacities °C 400 ppm highest 40 wt% TEPA-incorporated γ-Al2O3 samples (1.8 mmol CO2/g sorbent), while wt % PEI-impregnated exhibit moderate uptakes (0.9 g–1). both PEI- decrease with decreasing content temperatures. The 20 TEPA show best performance −20 conditions (1.6 1.1 g–1, respectively). Both also stable high working 1.2 g–1) across 10 cycles adsorption–desorption (adsorption desorption conducted 60 °C). Introducing moisture (70% RH improves capacity amine-impregnated PEI, TEPA, good results presented here indicate that PEI potential materials conditions, further opportunities optimize these scalable deployment different environmental

Язык: Английский

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Dual‐Tuning Azole‐Based Ionic Liquids for Reversible CO₂ Capture from Ambient Air

ChemSusChem, Год журнала: 2024, Номер 17(16)

Опубликована: Март 19, 2024

A strategy of tuning azole-based ionic liquids for reversible CO

Язык: Английский

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Tuning sorbent properties to reduce the cost of direct air capture

Energy & Environmental Science, Год журнала: 2024, Номер 17(13), С. 4544 - 4559

Опубликована: Янв. 1, 2024

A direct air capture (DAC) economic model that accounts for sorbent degradation is developed. Experimentally-measured parameters are then integrated to identify and process features minimize both the DAC carbon footprint cost.

Язык: Английский

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Scalable and Highly Porous Membrane Adsorbents for Direct Air Capture of CO₂

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(17), С. 22715 - 22723

Опубликована: Апрель 16, 2024

Direct air capture (DAC) of CO

Язык: Английский

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Assessing Impacts of Atmospheric Conditions on Efficiency and Siting of Large-Scale Direct Air Capture Facilities

JACS Au, Год журнала: 2024, Номер 4(5), С. 1883 - 1891

Опубликована: Май 1, 2024

The cost and efficiency of direct air capture (DAC) carbon dioxide (CO2) will be decisive in determining whether this technology can play a large role decarbonization. To probe the meteorological conditions on DAC we examine, at 1 × 1° resolution for continental United States (U.S.), impacts temperature, humidity, atmospheric pressure, CO2 concentration representative amine-based adsorption process. Spatial temporal variations pressure lead to strong available ambient across U.S. specific process that examine is described by model accounts both temperature humidity. A assumes same operating choices all locations shows performance, with most influential variables being H2O gas phase volume fraction which are negatively correlated productivity consider. also moderate positive correlation recovery. We show optimizing seven reflect spatial significantly improves performance and, more importantly, would different sites best than models based single set conditions. Our work provides framework assessing could applied any indicates these have important implications siting facilities.

Язык: Английский

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Rationally designed calcium carbonate multifunctional trap for contaminants adsorption

The Science of The Total Environment, Год журнала: 2023, Номер 903, С. 166142 - 166142

Опубликована: Авг. 12, 2023

Язык: Английский

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Cold Temperature Direct Air CO₂ Capture with Amine-Loaded Metal–Organic Framework Monoliths

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 16(1), С. 1404 - 1415

Опубликована: Дек. 18, 2023

Zeolites, silica-supported amines, and metal-organic frameworks (MOFs) have been demonstrated as promising adsorbents for direct air CO

Язык: Английский

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Distribution and Mobility of Amines Confined in Porous Silica Supports Assessed via Neutron Scattering, NMR, and MD Simulations: Impacts on CO₂ Sorption Kinetics and Capacities

Accounts of Chemical Research, Год журнала: 2023, Номер 56(19), С. 2620 - 2630

Опубликована: Сен. 18, 2023

ConspectusSolid-supported amines are a promising class of CO2 sorbents capable selectively capturing from diverse sources. The chemical interactions between the amine groups and give rise to formation strong adducts, such as alkylammonium carbamates, carbamic acids, bicarbonates, which enable capture even at low driving force, with ultradilute streams. Among various solid-supported sorbents, oligomeric infused into oxide solid supports (noncovalently supported) widely studied due their ease synthesis cost. This method allows for construction amine-rich while minimizing problems, leaching or evaporation, that occur supported molecular amines.Researchers have pursued improved by tuning physical properties phases. In terms uptake, efficiency, moles sorbed per mole sites, uptake rate (CO2 unit time) most critical factors determining effectiveness material. While structure–property relationships been developed different porous supports, interaction(s) phase support, structure distribution organic within pores, mobility pores not well understood. These important, because kinetics sorption, particularly when using prototypical oligomer branched poly(ethylenimine) (PEI), follow an unconventional trend, rapid initial followed very slow, asymptotic approach equilibrium. suggests is mass transfer-limited. Therefore, improving sorption performance can be facilitated better understanding pores.In this context, model were constructed highly ordered, mesoporous silica SBA-15 array techniques was used probe soft matter domains these hybrid materials. choice support based on its ordered arrangement mesopores tunable properties, including pore size, particle lengths, surface chemistries. Branched PEI─the common in sorbents─and linear, weight analogue, tetraethylenepentamine (TEPA), deployed Neutron scattering (NS), small angle neutron (SANS) quasielastic (QENS), alongside solid-state NMR (ssNMR) dynamics (MD) simulations, elucidate phases support. Together, tools, previously applied materials, provided new information regarding how filled loading increased those Varying surface-amine led unique trends distributions mobility; instance, hydrophilic walls (i.e., attractive amines) resulted hampered motions more intimate coordination walls, around hydrophobic grafted chains interrupt amine-wall showed recovered mobility, being liberated walls. By correlating structural dynamic novel identified, shedding light providing valuable guidance design effective sorbents.

Язык: Английский

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Review of polyethylenimine through ring-opening polymerization reactions and its application in CO2 capture

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(3), С. 112739 - 112739

Опубликована: Апрель 11, 2024

Язык: Английский

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