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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium 2D Materials – Preparation, Properties & Applications
Presentation Title Rapid Exfoliation of Low-defectivity Graphene in Alkali Lignin Aqueous Media
Author(s) Claudio Marchi, Harrison Loh, Federico Lissandrello, Konstantinos Sierros, Luca Magagnin
On-Site Speaker (Planned) Claudio Marchi
Abstract Scope Liquid Phase Exfoliation (LPE) of graphite has been proposed as a scalable and cost-effective method for producing graphene flakes. In this work, alkali lignin is investigated as a non-toxic stabilizer for the rapid (<3h) synthesis of water-dispersible few-layers-graphene (FLG) from commercial acid-intercalated graphite flakes. Time of sonication and lignin-to-graphite ratios are the critical parameters explored for the fine-tuning of the Ultrasonic-Assisted Liquid Phase Exfoliation of the carbonaceous precursor. Raman and UV-Vis spectroscopy are employed as the primary tools for evaluating the quality and nature of the final material. Spectroscopical data processing is conducted according to a range of criteria employed to identify FLG. Morphological investigation of FLG is conducted via SEM and TEM imaging. TGA testing is conducted to assess the amount of residual polymeric stabilizer for ink synthesis optimization. The analysis confirms the absence of significant basal-plane defectivity and the effectiveness of the proposed bio-compatible production route.
Proceedings Inclusion? Planned:
Keywords Other, Nanotechnology, Characterization

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comprehensive Understanding of the Gas Sensing Properties of 2D Materials Using the Framework of Density Functional Theory
Bandgap-Temperature Modeling in Semiconductors - An Overview
Chemisorption of gadolinium ions on 2D-g-C3N4 for an efficient piezo-photocatalytic remediation of kanamycin sulfate
Corrosion behaviour of atomic layers of graphene on nickel surfaces exposed to aggressive microbial environments
Czochralski process for a rational design of Copper Crystals for Microbial Corrosion Applications
Dispersing two-dimensional Ti3C2Tx MXene nanosheets in Nonpolar Organic Solvents Within Minutes
Effect of Pore Alignment in the Mechanical Properties of 2D Material 3D Foam – Polymer Composites
Effect of Temperature and Acoustic Pressure During Ultrasound Liquid Phase Processing of Graphite in Water
Elastic Response and Strain Solitons Behavior of Molybdenum Ditelluride (MoTe2) Based 2D Van der Waals Heterostructure
Enhanced Emission at Telecommunication Wavelength from Silicon-Phosphorene Hybrid Device Doped with Erbium
Ferromagnetism in Q-carbon Balls as a Function of Their Size
High fidelity multi-physics numerical modelling of ultrasonic bubble dynamics and liquid exfoliation of 2D graphite
High Throughput Computational Investigation of Two Dimensional Ferroelectric Materials for Photocatalytic Applications
Immobilization of Glycine molecules on Graphene Oxide for Enhanced Piezoelectricity
Novel approach to produce thick CNT based Bucky paper for Radar Absorption and EMI Shielding Applications
Novel Approach to Wafer Scale Integration of Graphene and h-BN Related 2-D Materials
Preparation and Electro-sorption Performance of Lotus Petiole-Based Activated Carbon
Raman and Transport Characterization of Semiconducting and Superconducting Selenide-based Transition Metal Dichalcogenides
Rapid Exfoliation of Low-defectivity Graphene in Alkali Lignin Aqueous Media
Structural Phase Transition and Pseudoelastic Behavior in Strained Monolayer Molybdenum Ditelluride (MoTe2 )
Synthesis and Characterization of Laser-Induced Graphene for Gas Sensing Applications
Synthesis and characterization of MnCo2O4 /GQDs nano-composites for super capacitor electrodes
Well-defined 3D printing of titanium carbide (Ti3C2Tx) MXene nanosheets into complex and hierarchical microarchitectures with high aspect ratio

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