Demetrios D. Chronopoulos
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View article: Graphene Acid: A Potent Carbocatalyst for the Friedel–Crafts Arylation of Aldehydes with Indoles
Graphene Acid: A Potent Carbocatalyst for the Friedel–Crafts Arylation of Aldehydes with Indoles Open
Carbocatalysis represents a highly attractive and effective field within the realm of metal‐free nanocatalysis, significantly advancing sustainability in synthetic chemistry. Graphene acid (GA) emerges as a well‐defined graphene derivative…
View article: Photochemical Carbocatalysis: Fullerene‐, Carbon Nanotube‐ or Graphene‐Based Metal‐Free Photocatalysts for Organic Transformations
Photochemical Carbocatalysis: Fullerene‐, Carbon Nanotube‐ or Graphene‐Based Metal‐Free Photocatalysts for Organic Transformations Open
Synthetic photochemistry is a research field, where organic transformations are promoted by the presence of photoactive species, under light irradiation. In particular, the sub‐field of photoorganocatalysis, where organic molecules are use…
View article: Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene–Alkyne Derivative (Small 51/2023)
Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene–Alkyne Derivative (Small 51/2023) Open
Antibiotic Detection In article number 2207216, Michal Otyepka and co-workers report on a simple and fast methodology to construct an aptasensor. An aptamer sensitive for ampicillin is conjugated to graphene derivative by a click chemistry…
View article: Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene–Alkyne Derivative
Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene–Alkyne Derivative Open
Tackling the current problem of antimicrobial resistance (AMR) requires fast, inexpensive, and effective methods for controlling and detecting antibiotics in diverse samples at the point of interest. Cost‐effective, disposable, point‐of‐ca…
View article: Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene-Alkyne Derivative
Click and Detect: Versatile Ampicillin Aptasensor Enabled by Click Chemistry on a Graphene-Alkyne Derivative Open
Tackling the current problem of antimicrobial resistance requires fast, inexpensive and effective methods for controlling and detecting antibiotics in diverse samples at the point of interest. Cost-effective, disposable, point-of-care elec…
View article: Thermal and Dielectric Performance of Ester Oil Based Pentyl-graphene Nanofluids
Thermal and Dielectric Performance of Ester Oil Based Pentyl-graphene Nanofluids Open
This work reports on the significant enhancement of the thermal properties of the FR3 natural ester dielectric oil after the addition of pentyl-graphene nanosheets, as confirmed by thermal diffusivity and specific heat studies at different…
View article: Electrocatalytic activity for proton reduction by a covalent non-metal graphene–fullerene hybrid
Electrocatalytic activity for proton reduction by a covalent non-metal graphene–fullerene hybrid Open
A metal-free electrocatalyst consisting of a covalently linked graphene–fullerene hybrid material was prepared following the chemistry of fluorographene, displaying improved hydrogen evolution reaction electrocatalytic activity and high du…
View article: Carbon Nanotube Based Metal–Organic Framework Hybrids From Fundamentals Toward Applications
Carbon Nanotube Based Metal–Organic Framework Hybrids From Fundamentals Toward Applications Open
Metal–organic frameworks (MOFs) materials constructed by the coordination chemistry of metal ions and organic ligands are important members of the crystalline materials family. Owing to their exceptional properties, for example, high poros…
View article: Cover Feature: One‐Step Synthesis of Janus Fluorographene Derivatives (Chem. Eur. J. 29/2020)
Cover Feature: One‐Step Synthesis of Janus Fluorographene Derivatives (Chem. Eur. J. 29/2020) Open
Janus graphene nanosheets with hydroxyl groups on one side and fluorine atoms on the other have been prepared by the team at RCPTM Olomouc (Czechia) by a simple nucleophilic substitution reaction of fluorographene in a biphasic aqueous-org…
View article: Tunable one-step double functionalization of graphene based on fluorographene chemistry
Tunable one-step double functionalization of graphene based on fluorographene chemistry Open
Double functionalized graphene derivatives were synthetized by a one-pot reaction of fluorographene with organometallic nucleophiles.
View article: Alkynylation of graphene <i>via</i> the Sonogashira C–C cross-coupling reaction on fluorographene
Alkynylation of graphene <i>via</i> the Sonogashira C–C cross-coupling reaction on fluorographene Open
We report successful grafting of alkynyl groups onto graphene via the Sonogashira reaction between fluorographene and terminal alkynes.
View article: Graphene: High‐Performance Supercapacitors Based on a Zwitterionic Network of Covalently Functionalized Graphene with Iron Tetraaminophthalocyanine (Adv. Funct. Mater. 29/2018)
Graphene: High‐Performance Supercapacitors Based on a Zwitterionic Network of Covalently Functionalized Graphene with Iron Tetraaminophthalocyanine (Adv. Funct. Mater. 29/2018) Open
A strategy toward a new class of graphene-based electrodes for supercapacitors is presented by Radek Zbořil, Michal Otyepka and co-workers in article number 1801111. Fluorographene chemistry leads to a high-yield covalent installation of c…
View article: High‐Performance Supercapacitors Based on a Zwitterionic Network of Covalently Functionalized Graphene with Iron Tetraaminophthalocyanine
High‐Performance Supercapacitors Based on a Zwitterionic Network of Covalently Functionalized Graphene with Iron Tetraaminophthalocyanine Open
Graphene derivatives are promising candidates as electrode materials in supercapacitor cells, therefore, functionalization strategies are pursued to improve their performance. A scalable approach is reported for preparing a covalently and …
View article: Cyanographene and Graphene Acid: Emerging Derivatives Enabling High-Yield and Selective Functionalization of Graphene
Cyanographene and Graphene Acid: Emerging Derivatives Enabling High-Yield and Selective Functionalization of Graphene Open
Efficient and selective methods for covalent derivatization of graphene are needed because they enable tuning of graphene's surface and electronic properties, thus expanding its application potential. However, existing approaches based mai…
View article: High-Yield Alkylation and Arylation of Graphene via Grignard Reaction with Fluorographene
High-Yield Alkylation and Arylation of Graphene via Grignard Reaction with Fluorographene Open
Covalent functionalization of graphene significantly broadens its application potential via tuning its electronic and surface properties.1,2 Therefore, a wide range of dry and wet chemistry approaches have been developed for graphene funct…