Coke-derived few layer graphene-like materials by mild planetary milling exfoliation

Sierra, Uriel; Mercado, Alfonso; Cuara, Edgar; Barriga-Castro, Enrique Díaz; Cortés, Alonso; Gallardo-Vega, Carlos; Fernández, Salvador

doi:10.1016/j.fuel.2019.116455

Cited by 11 publications

(7 citation statements)

References 81 publications

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“…In the wide-angle XRD patterns ( Figure 3 b), the MC and MC-COOH nanocomposites displayed two extremely sharp peaks centered at approximately 26° and 43°, which corresponded to the (002) and (101) diffractions of graphite [ 43 , 44 ]. The weak diffraction peak around 12.8° ( Figure 3 b, B) would indicate the presence of graphite oxide [ 45 , 46 ]. It was inferred that the graphitic character of the samples might derive from the highly carbonized MC framework or from the carboxylation reaction [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

Enhanced Electrochemical Characteristics of the Glucose Oxidase Bioelectrode Constructed by Carboxyl-Functionalized Mesoporous Carbon

Liu

et al. 2020

Sensors

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This research revealed the effect of carboxyl-functionalization on the mesoporous carbon (MC)-fixed glucose oxidase (GOx) for promoting the properties of bioelectrodes. It showed that the oxidation time, temperature and concentration, can significantly affect MC carboxylation. The condition of 2 M ammonium persulfate, 50 °C and 24 h was applied in the study for the successful addition of carboxyl groups to MC, analyzed by FTIR. The nitrogen adsorption isotherms, and X-ray diffraction analysis showed that the carboxylation process slightly changed the physical properties of MC and that the specific surface area and pore size were all well-maintained in MC-COOH. Electrochemical characteristics analysis showed that Nafion/GOx/MC-COOH presented better electrocatalytic activity with greater peak current intensity (1.13-fold of oxidation peak current and 4.98-fold of reduction peak current) compared to Nafion/GOx/MC. Anodic charge-transfer coefficients (α) of GOx/MC-COOH increased to 0.77, implying the favored anodic reaction. Furthermore, the GOx immobilization and enzyme activity in MC-COOH increased 140.72% and 252.74%, leading to the enhanced electroactive GOx surface coverage of Nafion/GOx/MC-COOH electrode (22.92% higher, 1.29 × 10−8 mol cm−2) than the control electrode. Results showed that carboxyl functionalization could increase the amount and activity of immobilized GOx, thereby improving the electrode properties.

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Section: Resultsmentioning

confidence: 99%

Enhanced Electrochemical Characteristics of the Glucose Oxidase Bioelectrode Constructed by Carboxyl-Functionalized Mesoporous Carbon

Liu

et al. 2020

Sensors

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“…thermal decomposition, ball milling, microwave sintering, flash Joule heating (FJH), hydrothermal methods, template-based confinement method and combined approaches). 19–27…”

Section: Introductionmentioning

confidence: 99%

An integrated design strategy coupling additive manufacturing and matrix-assisted pulsed laser evaporation (MAPLE) towards the development of a new concept 3D scaffold with improved properties for tissue regeneration

Russo,

Peluso,

Gloria

et al. 2024

Nanoscale Adv.

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“…GRMs including few-layer and multi-layered structures can be produced from C-based sources different from graphite such as carbon black, coke, carbonized/pyrolyzed wastes and biomasses through many approaches [ 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 ]. Graphene-like materials from coke have been produced implementing different approaches, but in all the cases, few-layered graphenic nanosheets with characteristics similar to graphite-derived ones (comparable graphenic sheets size) have been obtained.…”

Section: Introductionmentioning

confidence: 99%

“…Graphene-like materials from coke have been produced implementing different approaches, but in all the cases, few-layered graphenic nanosheets with characteristics similar to graphite-derived ones (comparable graphenic sheets size) have been obtained. Sierra and coworkers [ 43 , 44 , 45 ] produced graphene-like materials by coke oxidation and further exfoliation by ultrasounds and also by a mechanochemical approach (one hour milling by using a 2:1 wt.% mixture of stearic acid and coke). Saha and coworkers proposed the production of graphene-like materials from petroleum coke by electrochemical exfoliation after an oxidative treatment [ 42 ].…”

Section: Introductionmentioning

confidence: 99%

Coating of Flexible PDMS Substrates through Matrix-Assisted Pulsed Laser Evaporation (MAPLE) with a New-Concept Biocompatible Graphenic Material

et al. 2022

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In this study, matrix-assisted pulsed laser evaporation (MAPLE) was used to deposit graphene-like materials (GL), a new class of biocompatible graphene-related materials (GRMs) obtained from a controlled top-down demolition of a carbon black, on silicone slices to test their potential use as functional coating on invasive medical devices as indwelling urinary catheters. Results indicate that the relevant chemical-physical features of the deposit (controlled by FTIR and AFM) were maintained after MAPLE deposition. After deposition, GL films underwent a biological survey toward target cellular lines (murine fibroblast NIH3T3, human keratinocytes HaCAT and the human cervical adenocarcinoma epithelial-like HeLa). Results indicate that the GL films did not lead to any perturbations in the different biological parameters evaluated. The presented results and the possibility to further functionalize the GL or combine them with other functional materials in a hybrid fashion to assure a tighter adhesion onto the substrate for use in harsh conditions open the door to practical applications of these new-concept medical devices (drug delivery, next generation flexible devices, multifunctional coatings) paving the way to the prevention of nosocomial infections driven by catheterization through antibiotics-free approaches.

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Coke-derived few layer graphene-like materials by mild planetary milling exfoliation

Cited by 11 publications

References 81 publications

Enhanced Electrochemical Characteristics of the Glucose Oxidase Bioelectrode Constructed by Carboxyl-Functionalized Mesoporous Carbon

Enhanced Electrochemical Characteristics of the Glucose Oxidase Bioelectrode Constructed by Carboxyl-Functionalized Mesoporous Carbon

An integrated design strategy coupling additive manufacturing and matrix-assisted pulsed laser evaporation (MAPLE) towards the development of a new concept 3D scaffold with improved properties for tissue regeneration

Coating of Flexible PDMS Substrates through Matrix-Assisted Pulsed Laser Evaporation (MAPLE) with a New-Concept Biocompatible Graphenic Material

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