We studied the kinetics of formation iron oxide nanocrystals obtained from solution-phase thermal decomposition iron-oleate complex via "heating-up" process. To obtain detailed information on process and in solution, we performed a thermogravimetric-mass spectrometric analysis (TG-MS) in-situ magnetic measurements using SQUID. The TG-MS results showed that was decomposed at around 320 degrees C. SQUID data revealed generates intermediate species, which seem to act as monomers for...

Suitably integrating multiple nanomaterials into nanostructured particle systems with specific combinations of properties has recently attracted significant attention in the research community. In particular, numerous have been designed and fabricated by diverse materials monodispersed silica nanoparticles. One or more distinct can be assembled on, encapsulated within, integrated both inside on surface nanoparticles using different chemistries techniques to create multifunctional...

Ever since Au nanoparticles were developed as X-ray contrast agents, researchers have actively sought alternative nanoparticle-based imaging probes that are not only inexpensive but also safe for clinical use. Herein, we demonstrate bioinert tantalum oxide suitable nanoprobes high-performance computed tomography (CT) while simultaneously being cost-effective and meeting the criteria a biomedical platform. Uniformly sized prepared using microemulsion method, their surfaces readily modified...

"Attractive" catalyst: Molybdenum oxide nanoparticles have been incorporated into a mesoporous silica shell and coated on silica-coated magnetite for use as magnetically separable heterogeneous epoxidation catalyst. This catalyst, which has low Mo loading of 1 mol %, can be recycled reused six times in the cis-cyclooctene with no major loss activity (see picture). Supporting information this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702386_s.pdf or from...

Edge-exposed MoS2 nano-assembled structures are designed for high hydrogen evolution reaction activity and long term stability. The number of sulfur edge sites spheres sheets is confirmed by Raman spectroscopy EXAFS analysis. By controlling the morphology with formation assembly small-size fragments MoS2, resulting assembled have electrocatalytic HER thermodynamic

In this work, we reported a facile approach to prepare uniform copper ferrite nanoparticle-attached graphene nanosheet (CuFe2O4-GN). A one-step solvothermal method featuring the reduction of oxide and formation CuFe2O4 nanoparticles was efficient, scalable, green, controllable. The composite fully characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), photoelectron spectroscopy (XPS), which demonstrated that with diameter approximately 100 nm were densely compactly...

Extensive applications of rechargeable lithium-ion batteries (LIBs) to various portable electronic devices and hybrid electric vehicles result in the increasing demand for development electrode materials with improved electrochemical performance including high energy, power density, excellent cyclability, while maintaining low production cost. Here, we present a direct synthesis ferrite/carbon nanosheets battery anodes. Uniform-sized ferrite nanocrystals carbon were synthesized...

Due to various compositions and morphologies, exquisite intrinsic architectures, renewability, biomass has been used generate carbon electrodes for supercapacitors.

A simple and scalable process was developed for the synthesis of highly crystalline magnetite nanocrystals embedded in a carbon matrix using low cost starting materials; resulting nanocomposite showed very high specific capacity 863 mA hg−1 initial cycle retention 90% after 30 cycles.

Uniform palladium nanoparticles of various sizes and shapes are synthesized via a simple aqueous-phase reaction between Pd2+ ions PEOx–PPOy–PEOx triblock copolymers; the size shape controlled by varying conditions such as pH value (see image). The showed high catalytic activities for Suzuki cross-coupling reactions. Nanoparticles core base materials implementing nanotechnology in diverse areas. Because these exhibit interesting size- shape-dependent physical chemical properties, synthesis...

We report a novel method for the synthesis of self-reducible (thermally reducible without reducing atmosphere) and alcohol-soluble copper-based metal–organic decomposition (MOD) ink printed electronics. Alcohol-solvent-based conductive inks are necessary commercial printing processes such as reverse offset printing. selected copper(II) formate precursor alkanolamine (2-amino-2-methyl-1-propanol) ligand to make an alcohol-solvent-based assist in reduction reaction formate. In addition,...

A magnetically recyclable protein separation system has been designed and fabricated by combining ferrimagnetic magnetite cores NiO nanoparticles decorated onto the mesoporous silica shell with a high surface area (see figure). The exposed provide for selective adsorption of His-tagged from mixed-protein solution, as well cell lysate, magnetic core allows particles to be separated solution applying an external field. Detailed facts importance specialist readers are published "Supporting...

Abstract Graphene‐based nanocomposites are characterized by high mechanical strength, excellent electrical conductivity, and outstanding thermal chemical stability. Additionally, the combination of versatile functionalization chemistry simplicity large‐scale synthesis makes graphene ideal for electrode materials energy storage devices. To improve electrochemical performance even further, recent research has focused on preparation porous structures, either creating holes in sheets or...

We introduce a simple process to synthesize few-layered MoS2 nanosheets supported on coaxial carbon nanotubes through an L-cysteine-assisted hydrothermal route, in which L-cysteine, cheap and ordinary amino acid, plays fundamental role controlling the morphology of hybrid material binder help growth surface nanotubes. It is also demonstrated that polypeptide formed by L-cysteine can be transformed into amorphous heat treatment under inert atmosphere. The materials exhibit high capacity...

Sodium-ion batteries (SIBs) have attracted enormous attention in recent years due to the high abundance and low cost of sodium. However, contrast lithium-ion batteries, conventional graphite is unsuitable for SIB anodes because it much more difficult intercolate larger Na ions into layers. Therefore, critical develop new anode materials SIBs practical use. Here, heteroatom-doped graphene with doping levels disordered structures prepared using a simple economical thermal process. The...

Abstract Solvothermal processes are considered efficient approaches for the gram-scale production of graphene. Further modification graphene by chemical doping is an important approach to tailor its properties. In this work, we successfully synthesized sulfur-doped using a solvothermal method with dimethyl sulfoxide as precursor, which common laboratory reagent. Nitrogen-doped was produced demonstrate generality process. These heteroatom-doped materials exhibited high surface areas and...