Functionalization, Modification, and Characterization of Carbon Nanofibers

Krasnikova, Irina V.; Mishakov, Ilya V.; Vedyagin, Aleksey A.

doi:10.1016/b978-0-12-817342-8.00005-6

Cited by 7 publications

(5 citation statements)

References 129 publications

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“…Raman spectroscopy (NRS‐4100), XRD (Mini Flex 600), and SEM (Keyence: VE‐9800) analyses were performed to demonstrate the composition and crystal structure of carbonates 38 . In addition, the XRD peaks were used to estimate the ratio of each compound (weight percentage) using the Scherrer equation 39 …”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Thamsiriprideeporn

Suekane

2021

Greenhouse Gases

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CO2 mineralization is promising for carbon capture and storage (CCS). The multiple reuses of monoethanolamine (MEA) as absorbents for CO2 absorption and carbonate generation with minerals in wastewater between 20 and 25°C at atmospheric pressure (standard conditions) efficiently reduce both cost and energy penalties for industrial application. In this study, the multicycle of CO2 mineralization was performed in three steps: absorption, precipitation, and regeneration. We found that 5 wt.% MEA solution has great potential in terms of 24.26 moles of CO2 absorbing capacity per mole of MEA and 0.1535 moles of carbonate conversion per mole of MEA within less than 1.8 h operation time, which the optimal repetitions was 5‐cycle before MEA complete degradation. To reduce absorption time, we studied packing bed of 2‐, 4‐, 6‐, and 8 mm diameter nonreactive spherical glass beads were operated in the columns with 5 wt.% MEA solutions. The maximum benefit was obtained from the 8‐mm‐packing diameter, which fully accorded 28.85 and 0.1687 moles of CO2 and carbonate, respectively, per mole of 5 wt.% MEA within 44 min, providing the highest conversion in a relatively short time. The efficiency of regenerated MEA absorbent was reduced from 20 to 10% due to degradation. Raman spectroscopy, X‐ray diffractometry, and scanning electron microscopy were used to analyze the composition and crystal structure of carbonates. The main product of carbonates was calcite, which was mixed with complex salts, such as aragonite, magnesite, and dolomite. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Thamsiriprideeporn

Suekane

2021

Greenhouse Gases

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“…This is likely due to the CNF dispersion stability and respective interfacial tensions with other components within the slurry . CNFs are generally chemically inert and nonpolar; however, for some CNFs, a small proportion of polar surface groups are known to be present . XPS analysis was employed to deduce the chemical nature of as-received fibers.…”

Section: Resultsmentioning

confidence: 99%

Carbon Nanofiber/SiO₂ Nanoparticle/HDPE Composites as Physically Resilient and Submersible Water-Repellent Coatings on HDPE Substrates

Upton

Fedosyuk

Edel

et al. 2021

ACS Appl. Nano Mater.

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Here, we introduce high-strength carbon nanofibers (CNFs) into optimized polymer−nanoparticle composite formulations [modified SiO 2 nanoparticles/high-density polyethylene (HDPE)] to generate superhydrophobic surface coatings that are directly integrated into HDPE substrates. This is achieved through the use of a parallel plate hot pressing process and a unique design approach that considers the chemical properties of individual formulation components within a ternary system. Subsequently, this enables the generation of resilient, high-functioning, nano/ microscale materials while increasing potential lifetimes, through integrating self-cleaning functionality into the polymer. The most encouraging nanocomposite surface coating was found to surpass 100 abrasion cycles while retaining its high water repellency, displaying a static contact angle of 150 ± 3°and tilting angle of 18 ± 7°after 4 weeks of continual submersion (from values of 156 ± 3 and 5 ± 1°, respectively), under a hydrostatic pressure of 7.85 kPa (80 cm depth), where it was found to remain fully functional as a self-cleaning coating.

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“…Approaches such as thin film deposition or chemical/biochemical functionalization have been successfully applied to activate and tailor the CNF surface. 22 The latter results crucial for their use as catalytic supports since the CNF surface can further affect the nanoparticle deposition process. 23 Adding functionalities of different nature and concentration usually results in the creation of new anchoring sites for metal nanoparticles, affecting metal/support interaction and nanoparticle stabilization, size and dispersion.…”

Section: Introductionmentioning

confidence: 99%

Selective hydrodeoxygenation of levulinic acid to γ-valerolactone over Ru supported on functionalized carbon nanofibers

Bounoukta

Sayago

Rendón

et al. 2023

Sustainable Energy Fuels

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Functionalization, Modification, and Characterization of Carbon Nanofibers

Cited by 7 publications

References 129 publications

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Carbon Nanofiber/SiO₂ Nanoparticle/HDPE Composites as Physically Resilient and Submersible Water-Repellent Coatings on HDPE Substrates

Selective hydrodeoxygenation of levulinic acid to γ-valerolactone over Ru supported on functionalized carbon nanofibers

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Functionalization, Modification, and Characterization of Carbon Nanofibers

Cited by 7 publications

References 129 publications

Investigation and development of the multicycle of CO2 mineralization with wastewater under standard conditions

Investigation and development of the multicycle of CO2 mineralization with wastewater under standard conditions

Carbon Nanofiber/SiO2 Nanoparticle/HDPE Composites as Physically Resilient and Submersible Water-Repellent Coatings on HDPE Substrates

Selective hydrodeoxygenation of levulinic acid to γ-valerolactone over Ru supported on functionalized carbon nanofibers

Contact Info

Product

Resources

About

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Investigation and development of the multicycle of CO₂ mineralization with wastewater under standard conditions

Carbon Nanofiber/SiO₂ Nanoparticle/HDPE Composites as Physically Resilient and Submersible Water-Repellent Coatings on HDPE Substrates