Electrochemical Production of Graphene Analogs from Various Graphite Materials

Komoda, Masato; Nishina, Yuta

doi:10.1246/cl.200780

Cited by 8 publications

(2 citation statements)

References 75 publications

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“…Among them, electrochemical oxidation does not represent a viable option since it is very hard to achieve an oxidation level up to carboxyl acids, especially on the basal plane. [25] Another key aspect is the control of morphology and the possibility of assembling GA sheets to produce more complex nanostructures. In the case of graphene and GO, several different morphologies of the sheets have been proposed according to the targeted applications: millimeter wide single sheets [24a] and quantum dots, [24b] nanoribbons [24c] and nanostripes, [24d] holey sheets [24e] and wrinkled sheets [24f] are only some of the many faces of SGGs.…”

Section: Discussionmentioning

confidence: 99%

Graphene Acid: A Versatile 2D Platform for Catalysis

Blanco

Agnoli

Granozzi

2022

Israel Journal of Chemistry

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Graphene acid (GA) is a novel graphene platform where the carboxylic acid groups are located in the basal plane of the carbon network. The chemical route to develop such a platform has been proposed and the final product displays a series of advantages with respect to the wellknown and much used graphene oxide (GO), i. e. a more uniform functionalization of the graphene basal plane and an enhanced electronic conduction when compared to GO. In this review we discuss the most recent literature data which demonstrate that the excellent GA properties may have an impact on the catalytic activity of both GA itself and the hybrid derivatives obtained using GA as a scaffold. Examples are discussed where GA as carbocatalyst, molecular catalysts heterogenized on GA and particles/GA assemblies are used as catalysts and electrocatalysts, pinpointing the advantages of using GA with respect to other graphenic substrates.

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Section: Discussionmentioning

confidence: 99%

Graphene Acid: A Versatile 2D Platform for Catalysis

Blanco

Agnoli

Granozzi

2022

Israel Journal of Chemistry

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“…The negatively charged anions cause the oxygen to be pushed out in molecular form, initiating further exfoliation. It was revealed that, among many electrolyte solutions, sulfuric acid(VI) was the most promising due to the rapid reduction of sulfate ions, allowing for the detachment of carbon monolayers [ 32 , 33 ]. The disadvantage of this solution is excessive oxidation and formation of graphene oxide (GO) with a defective surface.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs)

et al. 2023

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Graphene nanoplatelets (GNPs) were prepared using the electrolytic exfoliation method on graphite foil in an ammonium sulfate solution. A series of experiments were conducted in order to optimize the production of the flakes by varying the pH of the solution, applied voltage and current, duration of electrolysis, temperature in the electrolytic system, and type and duration of the ultrasound interaction. The quality of the produced graphene nanoplatelets was analyzed using X-ray diffraction, Raman and IR spectroscopy, and TEM.

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Electrochemical Multicomponent Synthesis of Alkyl Alkenesulfonates using Styrenes, SO₂ and Alcohols

de A. Bartolomeu,

Breitschaft,

Schollmeyer

et al. 2024

Chemistry A European J

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A novel electrochemical approach to access alkyl alkenesulfonates via a multicomponent reaction was developed. The metal‐free method features easy‐to‐use SO2 stock solution forming monoalkylsulfites from alcohols with an auxiliary base in‐situ. These intermediates serve a dual role as starting materials and as supporting electrolyte enabling conductivity. Anodic oxidation of the substrate styrene, radical addition of these monoalkylsulfites and consecutive second oxidation and deprotonation preserve the double bond and form alkyl β‐styrenesulfonates in a highly regio‐ and stereoselective fashion. The feasibility of this electrosynthetic method is demonstrated in 44 examples with yields up to 81%, employing various styrenes and related substrates as well as a diverse set of alcohols. A gram‐scale experiment underlines the applicability of this process, which uses inexpensive and readily available electrode materials.

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Electrochemical Production of Graphene Analogs from Various Graphite Materials

Cited by 8 publications

References 75 publications

Graphene Acid: A Versatile 2D Platform for Catalysis

Graphene Acid: A Versatile 2D Platform for Catalysis

Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs)

Electrochemical Multicomponent Synthesis of Alkyl Alkenesulfonates using Styrenes, SO₂ and Alcohols

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Electrochemical Production of Graphene Analogs from Various Graphite Materials

Cited by 8 publications

References 75 publications

Graphene Acid: A Versatile 2D Platform for Catalysis

Graphene Acid: A Versatile 2D Platform for Catalysis

Optimization of the Electrochemical Method of Obtaining Graphene Nanoplatelets (GNPs)

Electrochemical Multicomponent Synthesis of Alkyl Alkenesulfonates using Styrenes, SO2 and Alcohols

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Product

Resources

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Electrochemical Multicomponent Synthesis of Alkyl Alkenesulfonates using Styrenes, SO₂ and Alcohols