Journal of Materials Chemistry C Top Picks web collection: “the many faces of carbon”
Nazario Martín introduces a Journal of Materials Chemistry C Top Picks web collection on “the many faces of carbon”.
A graphene-based transparent electrode for use in flexible optoelectronic devices
Graphene, a monolayer of carbon atoms arranged in a honeycomb structure, is a unique material with outstanding properties that may be useful in applications ranging from electronic devices to energy storage devices.
Carbon quantum dots: synthesis, properties and applications
Carbon quantum dots (CQDs, C-dots or CDs), which are generally small carbon nanoparticles (less than 10 nm in size) with various unique properties, have found wide use in more and more fields during the last few years. In this feature article, we describe the recent progress in the field of CQDs, focusing on their synthetic methods, size control, modification strategies, photoelectric properties, luminescent mechanism, and various applications.
Graphene–organic composites for electronics: optical and electronic interactions in vacuum, liquids and thin solid films
Describing all the optical and electronic interactions of graphene with poly-aromatic molecules and polymers for electronic devices.
Ultrathin graphene: electrical properties and highly efficient electromagnetic interference shielding
Ultrathin graphene, a 2D material, demonstrates outstanding features and rapid growth for EMI shielding due to its strong absorption towards electromagnetic waves in composites. It is sought after for communication, electronic devices, information security, electromagnetic pollution defense and healthcare.
Enhanced thermoelectric property by the construction of a nanocomposite 3D interconnected architecture consisting of graphene nanolayers sandwiched by polypyrrole nanowires
A new strategy is developed to significantly enhance polymer thermoelectric property by the construction of 3D interconnected architecture consisting of rGO nanolayers sandwiched by PPy nanowires.
Fast one-step synthesis of N-doped carbon dots by pyrolyzing ethanolamine
N-doped CDs can be obtained directly with high yield by pyrolyzing ethanolamine in air within just 7 minutes with the assistance of hydrogen peroxide.
Revealing the tunable photoluminescence properties of graphene quantum dots
Photoluminescence of graphene quantum-dot can be sensitively tuned by size, edge configurations, shape, chemical functionalities, defects, heteroatom-doping and hybridization states.
A novel rod-like MnO2@Fe loading on graphene giving excellent electromagnetic absorption properties
The rod-like structure of MnO2@Fe is apt to convert the electromagnetic wave to microcurrent and then attenuate it.
One-pot synthesis of carbon nanodots for fluorescence turn-on detection of Ag+ based on the Ag+-induced enhancement of fluorescence
Fluorescent carbon dots prepared by a heat treatment of ethylene glycol solution can act as fluorescence turn-on probes for sensitive and selective detection of Ag+ ions.
Highly luminescent nitrogen-doped carbon quantum dots as effective fluorescent probes for mercuric and iodide ions
Nitrogen-doped carbon quantum dots (N-CQDs) prepared via a one-step hydrothermal reaction exhibited highly selective and sensitive detection of Hg2+ and I− through fluorescence quenching and recovery processes, respectively.
Fabrication of a nitrogen-doped graphene quantum dot from MOF-derived porous carbon and its application for highly selective fluorescence detection of Fe3+
A new strategy for in situ formation and separation of fluorescent N-GQDs for Fe3+ sensing was developed, with MOFs as precursors.
Facile synthesis of oxygen and sulfur co-doped graphitic carbon nitride fluorescent quantum dots and their application for mercury(II) detection and bioimaging
We developed a facile one-step route for the synthesis of blue fluorescent OS-GCNQDs, which exhibited improved selectivity and sensitivity for Hg2+ detection, and lower cytotoxicity for cell imaging.
Graphene–carbonyl iron cross-linked composites with excellent electromagnetic wave absorption properties
A carbon-bridge effect was adopted to explain the electromagnetic wave absorbing property related to the cross-linked framework structure of RGO–SCI composites.
Hair-derived carbon dots toward versatile multidimensional fluorescent materials
Carbon dots are prepared via pyrolysis of natural hair, and further embedded in a polymer matrix to prepare multidimensional hybrid materials.
Graphene-based gas sensor: metal decoration effect and application to a flexible device
Synergistic combination of metal nanoparticles and graphene modulates electronic properties of graphene, leading to enhancement in gas sensitivity and selectivity.
Facile fabrication of ultrathin graphene papers for effective electromagnetic shielding
Novel conductive ultrathin graphene papers demonstrate effective EMI shielding of ∼46.3 dB (∼0.3 mm) and ∼47.7 dB (∼0.1 mm) in attenuators.
Nitrogen doped graphene: influence of precursors and conditions of the synthesis
The level of nitrogen doping of graphene strongly depends on the type of the starting graphite oxide and temperature used.
Efficient electron transfer in carbon nanodot–graphene oxide nanocomposites
Ultrafast electron transfer is identified from carbon nanodots to graphene oxide with a time constant of 400 fs.
High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core–shell nanorods//specially reduced graphene oxide
With a view to developing flexible solid-state asymmetric supercapacitors, we have specially designed and nanoscopically engineered two types of electrodes: a MnO2/ZnO core–shell nanorod array and a HI-reduced graphene oxide assembly, both deposited in situ on a carbon cloth.
Inkjet deposition of liquid-exfoliated graphene and MoS2 nanosheets for printed device applications
Low temperature inkjet printing of exfoliated nanosheets has been demonstrated leading to conductive graphene traces and all-inkjet printed devices.
About this collection
This first in a series of JMC C Top Picks collections focusses on progress in the synthesis, preparation, characterization, and applications of some of the most recent and appealing nanoforms of carbon-based materials.
Journal of Material Chemistry C’s Editor-in-Chief Nazario Martín (Universidad Complutense, Spain) has gathered together the journal’s most outstanding recent papers in carbon-based materials with crucial real world applications, such as photovoltaics, optical sensing and catalysis.
Browse this collection to view reviews and original research demonstrating some of the most recent and appealing nanoforms of carbon-based materials, namely graphene and graphene oxide, graphene quantum dots and carbon quantum dots. The papers gathered in this themed collection clearly show the tremendous and rapid development undergone by these singular nanoforms of carbon, which will attract the attention of both the specialized and general scientific community.