Carbon nanotube plasma functionalization: The role of carbon nanotube/maleic anhydride solid premix

Steffen, Teresa Tromm; Fontana, L.C.; Hammer, Peter; Becker, Daniela

doi:10.1016/j.apsusc.2019.06.176

Cited by 23 publications

(9 citation statements)

References 23 publications

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“…Oxygen in the samples was detected, which originates from the composition of the precursors used or appearing on the carbon surface due to their exposure to air and moisture. In each case, carbon–oxygen bonds in the form of C–O, CO, and (CO)–O were evidenced at ∼286.5, ∼287.9, and ∼288.8 eV . These signals, particularly indicating the prevalence of carboxyl groups, are more intense for the C ZIF -2, C ZIF -3, C ZIF -5, and C ZIF -6 samples.…”

Section: Results and Discussionmentioning

confidence: 93%

Governing the Porosity and Morphology of Zeolitic Imidazolate Framework-Derived Functional Carbons toward Improved Adsorption of Cationic Dyes

Ejsmont,

Dutta,

Jankowska

et al. 2024

Chem. Mater.

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Nitrogen-rich porous carbons prepared from zeolitic imidazolate frameworks (ZIFs) offer a promising platform for the effective confinement of small guest molecules. However, a key challenge within the domain of liquid-phase adsorption lies in the prevailing microporosity of ZIF-derived carbons, which impedes the diffusion of larger molecules and hinders the adsorption efficiency. In order to maximize carbon availability, methods for reshaping the particle morphology and generating mesoporosity are being dynamically developed. Herein, we present a strategy that addresses the limitations of conventional carbons from ZIF-8 and endeavors to increase the adsorption capacities toward organic pollutants via the generation of a dual-pore system along with the obtaining of diverse particle morphologies. We envisioned developing two strategies to synthesize unique ZIF precursors. The first method focused on ZIF-8 preparation from zinc oxides in the form of nanoparticles or flowers. In the second approach, a ZIF-8 crystalline phase was transformed into a pseudopolymorphic phase (ZIF-CO 3 -1) with a two-dimensional structure. The present study unveils the unexplored application of ZIF-CO 3 -1 in preparing functional porous carbons. Owing to the architecture of the ZnO@ZIF-8 and ZIF-CO 3 -1 precursors, their high-temperature carbonization generated carbons with hierarchical porosity (micro/mesopores). Compared to the microporous carbons, the adsorbents exhibited superior performance toward removing Auramine-O and Brilliant Green dyes, with sorption capacities of 257−544 and 247−395 mg/g, respectively. Their efficiency is attributed to elevated textural parameters, rich surface chemistry, and particle morphology, which improved pore accessibility.

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Section: Results and Discussionmentioning

confidence: 93%

Governing the Porosity and Morphology of Zeolitic Imidazolate Framework-Derived Functional Carbons toward Improved Adsorption of Cationic Dyes

Ejsmont,

Dutta,

Jankowska

et al. 2024

Chem. Mater.

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“…The CCP reactor used to functionalize the zinc oxide was homemade, based on the experience in assembling previous reactors. [16,17] The reactor is basically composed of stainless steel electrodes inside a cylindrical glass chamber, as presented in Figure 1. The sample holder has a diameter of 58 mm, which is placed in the reactor chamber with a volume of 56.5 cm 3 .…”

Section: Plasma Functionalization Processmentioning

confidence: 99%

“…Second, it is controllable and reproducible, fast, and efficient even in moderate conditions, as it enables high energy levels, requires reasonable power, and maintains the sample close to room temperature, preventing the degradation of particles. [13,[16][17][18] Studies in the literature promote the functionalization of ZnO through plasmas using molecular gases. [12][13]15] Ciolan et al [12] discussed the effects of the gas mixture ratio of argon to ammonia during surface amination of ZnO nanoparticles.…”

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confidence: 99%

ZnO surface modification with maleic anhydride using plasma treatment

Klok,

Steffen,

Sabedra

et al. 2023

Plasma Processes & Polymers

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Zinc oxide (ZnO) was surface treated using argon plasma at 5 and 15 min, using maleic anhydride (MA) in solid state as the functionalizing agent. The samples were characterized by X‐ray photoelectron spectroscopy, Fourier‐transform infrared spectroscopy, and thermogravimetric analysis. The results indicate that ZnO surface modification occurs through two main routes: the decomposition of MA and the plasma‐induced formation of C–Zn bonds, with 15 min being the most favorable time span. Poly(lactic acid) (PLA) and ZnO were processed in an internal chamber mixer, which was coupled with a torque rheometer and characterized by the Melt Flow Index. Composites containing treated ZnO present fluidity indices closer to those of pure PLA, indicating the functionalization contribution to control the degradation of the polymer matrix.

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“…Single-wall carbon nanotubes (SWCNTs) are regarded as an ideal conductive additive and mechanical reinforcer owing to their excellent mechanical properties and high electrical conductivity [6][7][8][9][10]. Therefore, integrating SWCNTs with PET is expected to achieve an ideal antistatic packaging material with excellent comprehensive performance.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Electrical Conductivity and Strength of Pet by Single-Wall Carbon Nanotube Film Coating

Ding¹,

Jiao²,

Zhao³

et al. 2023

Preprint

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Carbon nanotube plasma functionalization: The role of carbon nanotube/maleic anhydride solid premix

Cited by 23 publications

References 23 publications

Governing the Porosity and Morphology of Zeolitic Imidazolate Framework-Derived Functional Carbons toward Improved Adsorption of Cationic Dyes

Governing the Porosity and Morphology of Zeolitic Imidazolate Framework-Derived Functional Carbons toward Improved Adsorption of Cationic Dyes

ZnO surface modification with maleic anhydride using plasma treatment

Enhancing the Electrical Conductivity and Strength of Pet by Single-Wall Carbon Nanotube Film Coating

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