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

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115881 - 115881

Published: March 1, 2025

Language: Английский

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Phase Change-Mediated Capture of Carbon Dioxide from Air with a Molecular Triamine Network Solid

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

The efficient removal of CO2 from exhaust streams and even directly air is necessary to forestall climate change, lending urgency the search for new materials that can rapidly capture at high capacity. recent discovery diamine-appended metal–organic frameworks exhibit cooperative uptake via formation ammonium carbamate chains begs question whether simple organic polyamine molecules could be designed achieve a similar switch-like behavior with higher separation capacities. Here, we present solid molecular triamine, 1,3,5-tris(aminomethyl)benzene (TriH), captures large quantities upon exposure humid form porous, crystalline, network TriH(CO2)1.5·xH2O (TriHCO2). phase transition TriH converting TriHCO2 was studied through powder single-crystal X-ray diffraction analysis, additional spectroscopic techniques further verified species exposing air. Detailed breakthrough analyses conducted under varying temperatures, relative humidities, flow rates reveal record absorption capacities as 8.9 mmol/g. Computational an activation barrier associated absorbing dry conditions lowered hydrogen bonding water molecule in state N–C bond formation. These results highlight prospect tunable polyamines class candidate absorbents high-capacity capture.

Language: Английский

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Direct Electroreduction of Low-Concentration CO₂: Progress and Perspective

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

The conversion of CO2 into carbon-based fuels and chemicals via the electrocatalytic reduction reaction (CO2RR) offers an attractive route to reducing emission for carbon neutrality. Currently, high-purity gas has been widely used as feedstock most CO2RR studies, while sources with a typically low concentration impose extra cost capture purification steps. direct utilization low-concentration is promising approach substantially address this problem. In Perspective, we first highlight prominent advantages electroreduction CO2. Then focus on summary several important design strategies in diluted impurities-containing atmosphere. Finally, propose personal outlooks future challenges some opportunities fascinating research field.

Language: Английский

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Benchmarking selective capture of trace CO2 from C2H2 using an amine-functionalized adsorbent

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 16, 2025

Purifying C2H2 by removing trace CO2 is critically needed yet challenged their analogous physical properties. Herein, we report a commercial resin adsorbent HP20 (Diaion® HP-20 Resin) loaded with polyethyleneimine (PEI@HP20) which selectively captures and excludes C2H2. PEI@HP20 possesses high adsorption capacity (4.35 mmol/g) at 100 kPa 298 K record CO2/C2H2 uptake ratio compared all reported CO2-selective adsorbents. The ideal adsorbed solution theory selectivity reaches 1.33×107. pilot-scale pressure-temperature swing on 2 kg further validated that it can obtain >99.99% purity from CO2/C2H2(1/99, v/v) mixtures yield of 344.7 g per cycle. combination multinuclear solid-state Nuclear Magnetic Resonance, Fourier Transform infrared spectroscopy density functional calculations reveal the performance relies dual chemisorption/physisorption mechanism. This work highlights promising method to develop green, low cost, efficiency, readily scalable adsorbent. but challenging due authors production for selective capture traces exclusion

Language: Английский

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Single-Crystal X-ray Structures of Homochiral Brønsted Acidic Covalent Organic Frameworks

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Determining the crystal structures of covalent organic frameworks (COFs) with atomic precision is pivotal for uncovering their properties and optimizing functionalities. However, synthesis high-quality single crystals COFs suitable X-ray diffraction analysis, especially chiral (CCOFs), remains a formidable challenge. In this work, we report two three-dimensional (3D) CCOFs synthesized via imine condensation tetrahedral tetraamine tetraaldehydes derived from optically active 1,1′-biphenol phosphoryl chloride or thiophosphoryl chloride. Single varying sizes are obtained through either low-temperature modulation strategy, yielding large up to 100 μm, solvothermal method. The structurally characterized by single-crystal diffraction, achieving resolution 0.90 Å. These isostructural each features 4-fold interpenetrated diamondoid open framework all phosphoric acid groups periodically aligned within tubular helical channels, displaying enhanced Brønsted acidity compared non-immobilized acids. exhibit permanent porosity, chemical resistance in boiling water, 14 M NaOH, 0.1 HCl, thermal stability 400 °C. Notably, these serve as efficient recyclable heterogeneous catalysts asymmetric addition aromatic aldehydes, enantioselective transfer hydrogenation ketimines, three-component direct Mannich reactions involving aldimines cyclic ketones, good high enantioselectivities (up 99.5% ee) that surpass those analogous systems homogeneous catalysts. This work represents first successful demonstration homochiral COFs, paving way in-depth investigations into structure–property relationships processes facilitating design novel functional materials.

Language: Английский

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Bioinspired Chloride-Assisted Protein Channels: Enhancing Proton Transport for Sustainable Energy Harvesting from Acidic Wastewater

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Highly efficient proton transfer in biological processes has driven the pursuit of synthetic analogs; however, replicating high permeance natural systems remains a significant challenge. Herein, inspired by function ClC-ec1 protein, we report design Cl--assisted transport channels within hybrid membrane composed covalent organic frameworks (COFs) integrated with aramid nanofibers (ANFs). By leveraging buffer layer-mediated interfacial polymerization and flocculation behavior ANF aqueous environments, establish robust hydrogen-bonding interactions between COFs ANFs. The hydride material enables Cl- binding, significantly accelerating manner similar to that protein channel. In presence small concentration ions (0.1% concentration), permeation rate is enhanced approximately 3 times, reaching 9.8 mol m-2 h-2. Notably, facilitates sustainable osmotic power generation from acidic wastewater, delivering an output density 434.8 W m-2. Theoretical calculations revealed preferentially binds Cl-, promoting hopping lowering energy barrier for transport. This study establishes new paradigm bioinspired ion-assisted transport, presenting approach harvesting wastewater.

Language: Английский

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Supramolecular chemistry for carbon dioxide capture

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216655 - 216655

Published: April 3, 2025

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2D Benzothiophene‐Based Covalent Organic Frameworks for Efficient Iodine Capture

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract The leakage of iodine and its radioactive isotopes poses a major threat to ecosystems human health, emphasizing the need for effective recyclable capture materials. Covalent organic frameworks (COFs), characterized by high surface areas, tunable pore sizes, excellent chemical stability, are ideal candidates adsorption applications. Herein, two novel COFs (JUC‐700 JUC‐701) designed synthesized based on benzotrithiophene (BTT). Both JUC‐700 JUC‐701 exhibit areas (2004.9 1990.5 m 2 g −1 , respectively), mesoporous structures (≈2.6 nm), abundant heteroatoms, contributing their exceptional performance. Notably, demonstrates superior capacity (6.17 ) compared (4.73 ), attributes enhanced affinity near pyridine groups. Theoretical calculations further reveal that pyridinic nitrogen in significantly strengthens interactions with molecules, confirming capabilities. This study provides insights into design functionalized capture, advanced materials environmental remediation nuclear waste management.

Language: Английский

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Deep eutectic solvent- and nanocellulose-tuned MXene membranes for efficient gas separation

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 124090 - 124090

Published: April 1, 2025

Language: Английский

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Insights into the development of 2D covalent organic frameworks as photocatalysts in organic synthesis

Acta Physico-Chimica Sinica, Journal Year: 2025, Volume and Issue: unknown, P. 100086 - 100086

Published: April 1, 2025

Language: Английский

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