CO2 capture by adsorption on biomass-derived activated char: A review

Goel, Chirag; Mohan, Sooraj; Dinesha, P.

doi:10.1016/j.scitotenv.2021.149296

Cited by 124 publications

(40 citation statements)

References 187 publications

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“…Hydrochar has environmental applications as a soil amendment (Bargmann et al, 2014;Khosravi et al, 2022) and as a nutrient source (Becker et al, 2019;Fei et al, 2019). The physical and energetic properties of hydrochar make it suitable for use as a solid fuel (Marin-Batista et al, 2020;Ipiales et al, 2022), enhancer of anaerobic digestion (Kumar et al, 2021), CO 2 capture agent (Goel et al, 2021;Wang et al, 2021a), energy storage material in fuel cells, supercapacitors, and batteries (Arenas Esteban et al, 2020;Zhou et al, 2021;Arauzo et al, 2022), and as a precursor for adsorbents (Diaz et al, 2019;Román et al, 2020) and activated carbons (Belete et al, 2021;Kumar et al, 2020). The use of hydrochar as a solid biofuel is acquiring focus because 50-85 % of its energy is contained in the feedstock (Román et al, 2012;Ipiales et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Sarrión¹,

Rubia²,

Coronella³

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Sarrión¹,

Rubia²,

Coronella³

et al. 2022

SSRN Journal

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“…Combined with the results of the N 2 adsorption–desorption experiment, we propose that the main reason why the PHC‐4K‐4 has the best CO 2 adsorption capacity may be due to their larger specific surface area and high micropore volume. Because the narrow micropores are close to the dynamic diameter of CO 2 molecules, the adsorption force and potential field overlap of adjacent walls have stronger attraction to CO 2 molecules 52 . This material also can provide more active sites for the adsorbent, and the mesopores provide channels for the diffusion of CO 2 gas.…”

Section: Resultsmentioning

confidence: 99%

“…Because the narrow micropores are close to the dynamic diameter of CO 2 molecules, the adsorption force and potential field overlap of adjacent walls have stronger attraction to CO 2 molecules. 52 This material also can provide more active sites for the adsorbent, and the mesopores provide channels for the diffusion of CO 2 gas.…”

Section: Co 2 Capture Performancementioning

confidence: 99%

Simple fabrication of a phosphorus‐doped hierarchical porous carbon via soft‐template method for efficient CO₂capture

Gong

Hang

et al. 2022

Surface & Interface Analysis

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Hierarchical porous carbons are widely used as adsorbents, catalyst supports, electrode materials, and other applications because of their high specific surface area (SSA), varied pore structure, adjustable porosity, and excellent physicochemical stability. Introducing heteroatoms such as N, P, or S, with electronegativities different from that of carbon, into the carbon skeleton can change the chemical properties of the surface and the density of the electron cloud around the carbon matrix, thus altering interactions of CO2molecules with the surface and improving CO2adsorption capacity. Therefore, doping heteroatoms in carbon materials has attracted a great amount of attention. In this paper, the template method was used with F108 (polyethylene glycol–polypropylene glycolpolyethylene glycol) as the template, resorcinol and formaldehyde solutions as the carbon sources, phosphoric acid as the phosphorus source, and KOH as the activator to prepare phosphorus‐doped hierarchical porous carbons. Through a series of characterization and CO2adsorption experiments, the influence of the amount of KOH and template agent on the pore structure of carbon materials was studied. We conclude that these phosphorus‐doped hierarchical porous carbon materials are promising CO2adsorbents.

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“…Therefore, the role of metallic potassium vapor is exclusive and significant for the development of uniform pores during pyrolysis. Acidic or neutral activating agents fail to achieve this key factor, which could be the reason for the selection of KOH as an activating agent for the preparation of carbonaceous materials ( Goel et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes

et al. 2022

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Advances in new porous materials have recognized great consideration in CO2 capture and electrochemical energy storage (EES) applications. In this study, we reported a synthesis of two nitrogen-enriched KOH-activated porous carbons prepared from polycarbazole phthalonitrile networks through direct pyrolysis protocol. The highest specific surface area of the carbon material prepared by pyrolysis of p-4CzPN polymer reaches 1,279 m2 g−1. Due to the highly rigid and reticular structure of the precursor, the obtained c-4CzPN–KOH carbon material exhibits high surface area, uniform porosity, and shows excellent CO2 capture performance of 19.5 wt% at 0°C. Moreover, the attained porous carbon c-4CzPN–KOH showed high energy storage capacities of up to 451 F g−1 in aqueous electrolytes containing 6.0 M KOH at a current density of 1 A g-1. The prepared carbon material also exhibits excellent charge/discharge cycle stability and retains 95.9% capacity after 2000 cycles, indicating promising electrode materials for supercapacitors.

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CO2 capture by adsorption on biomass-derived activated char: A review

Cited by 124 publications

References 187 publications

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Simple fabrication of a phosphorus‐doped hierarchical porous carbon via soft‐template method for efficient CO₂capture

Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes

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CO2 capture by adsorption on biomass-derived activated char: A review

Cited by 124 publications

References 187 publications

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Acid-Mediated Hydrothermal Treatment of Sewage Sludge for Nutrient Recovery

Simple fabrication of a phosphorus‐doped hierarchical porous carbon via soft‐template method for efficient CO2capture

Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes

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Simple fabrication of a phosphorus‐doped hierarchical porous carbon via soft‐template method for efficient CO₂capture