Articles with "co2 selectivity" as a keyword



100% CO2 selectivity Fe2O3/Fe3O4 redox pair of Ba‐hexaferrite for CO2 capture via relay oxygen donation

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Published in 2025 at "AIChE Journal"

DOI: 10.1002/aic.70100

Abstract: Engineering an iron‐based oxygen carrier with high oxygen transport capacity (Ot) surpassing Fe2O3/Fe3O4 redox pair without decreasing CO2 selectivity and recyclability remains a substantial obstacle for CO2 capture via chemical looping combustion (CLC) technology. Herein,… read more here.

Keywords: fe2o3 fe3o4; co2 selectivity; fe3o4 redox; oxygen ... See more keywords

Properties of Bulk In‐Pt Intermetallic Compounds in Methanol Steam Reforming

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Published in 2022 at "Chemphyschem"

DOI: 10.1002/cphc.202200074

Abstract: Abstract Heterogeneous catalysts are often complex materials containing different compounds. While this can lead to highly beneficial interfaces, it is difficult to identify the role of single components. In methanol steam reforming (MSR), the interplay… read more here.

Keywords: methanol steam; steam reforming; properties bulk; intermetallic compounds ... See more keywords

Controlled Selectivity of CO2 Reduction on Copper by Pulsing the Electrochemical Potential.

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Published in 2018 at "ChemSusChem"

DOI: 10.1002/cssc.201800318

Abstract: We demonstrate a simple strategy to enhance the CO2 reduction reaction (CO2 RR) selectivity by applying a pulsed electrochemical potential to a polycrystalline copper electrode. By controlling the pulse duration, we show that the hydrogen… read more here.

Keywords: co2 reduction; co2; co2 selectivity; selectivity co2 ... See more keywords
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Heteroatom-doped porous carbons exhibit superior CO2 capture and CO2/N2 selectivity: Understanding the contribution of functional groups and pore structure

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Published in 2020 at "Separation and Purification Technology"

DOI: 10.1016/j.seppur.2020.118065

Abstract: Abstract The heteroatom-doped porous carbon is an effective strategy to improve the CO2 uptake. However, there are obvious contradictory conclusions in the previous reports regarding the influences of nitrogen groups and pore sizes. Besides this,… read more here.

Keywords: doped porous; co2; co2 selectivity; groups pore ... See more keywords
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CO2 selectivity of flower-like MoS2 grown on TiO2 nanofibers coated with acetic acid-treated graphitic carbon nitride

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Published in 2020 at "Solar Energy Materials and Solar Cells"

DOI: 10.1016/j.solmat.2020.110890

Abstract: Abstract Activated CO2 adsorption sites are crucial for improving selectivity in photocatalytic CO2 reduction. Co-catalysts incorporating rare or noble metals have previously been required to achieve high CO2 selectivity ( S CO 2 ); thus,… read more here.

Keywords: co2 selectivity; graphitic carbon; carbon nitride; c3n4 ... See more keywords

Simultaneously Promoted Water Resistance and CO2 Selectivity in Methanol Oxidation Over Pd/CoOOH: Synergy of Co-OH and the Pd-Olatt-Co Interface.

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Published in 2024 at "Environmental science & technology"

DOI: 10.1021/acs.est.4c06229

Abstract: Catalytic purification of industrial oxygenated volatile organic compounds (OVOCs) is hindered by the presence of water vapor that attacks the active sites of conventional noble metal-based catalysts and the insufficient mineralization that leads to the… read more here.

Keywords: water; co2 selectivity; water resistance;

Resembling Graphene/Polymer Aerogel Morphology for Advancing the CO2/N2 Selectivity of the Postcombustion CO2 Capture Process

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Published in 2024 at "Industrial & Engineering Chemistry Research"

DOI: 10.1021/acs.iecr.3c02989

Abstract: The separation of CO2 from N2 remains a highly challenging task in postcombustion CO2 capture processes, primarily due to the relatively low CO2 content (3–15%) compared to that of N2 (70%). This challenge is particularly… read more here.

Keywords: chemistry; co2; co2 capture; selectivity ... See more keywords
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Selective Adsorption of CO2 on Zeolites NaK-ZK-4 with Si/Al of 1.8–2.8

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Published in 2020 at "ACS Omega"

DOI: 10.1021/acsomega.0c03749

Abstract: Zeolites with appropriately narrow pore apertures can kinetically enhance the selective adsorption of CO2 over N2. Here, we showed that the exchangeable cations (e.g., Na+ or K+) on zeolite ZK-4 play an important role in… read more here.

Keywords: co2; co2 selectivity; zeolites nak; adsorption co2 ... See more keywords

Increased CO2/N2 selectivity of PTMSP by surface crosslinking.

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Published in 2022 at "Chemical communications"

DOI: 10.1039/d2cc00065b

Abstract: The surface crosslinking of poly[1-(trimethylsilyl)-1-propyne] (PTMSP) membranes by dithiothreitol under thiol-ene click reaction conditions has yielded membranes having CO2/N2 selectivities in excess of 30 with CO2 permeances in excess of 300 GPU (gas permeation units).… read more here.

Keywords: selectivity ptmsp; co2 selectivity; surface crosslinking; surface ... See more keywords

Unravelling the origin of enhanced CO2 selectivity in amine-PIM-1 during mixed gas permeation

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Published in 2025 at "Journal of Materials Chemistry A"

DOI: 10.1039/d4ta08839e

Abstract: Previously, it has been reported that aAmine-PIM-1, a polymer of intrinsic microporosity obtained by reduction of nitrile groups of PIM-1 to primary amine groups, shows enhanced CO2 selectivity during mixed... read more here.

Keywords: amine; enhanced co2; pim; unravelling origin ... See more keywords

Hyperselective carbon membranes for precise high-temperature H2 and CO2 separation

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Published in 2025 at "Science Advances"

DOI: 10.1126/sciadv.adt7512

Abstract: More than 90% of the world’s hydrogen (H2) is produced from fossil fuel sources, which requires energy-intensive separation and purification to produce high-purity H2 fuel and to capture the carbon dioxide (CO2) by-product. While membranes… read more here.

Keywords: carbon; hyperselective carbon; co2; co2 separation ... See more keywords