Materials Literature
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A fibrous and flexible graphene nano-sheet and carbon nano-sphere composite supercapacitor is developed by a novel electrochemical approach and its stable performance with a highly enhanced capacitance is demonstrated.
Spectroscopic analysis of Nd 3+ in Cd 1−3x Nd 2x □ x MoO 4 points out two non-equivalent symmetry sites depending on the location of the □ vacancies. Both short lifetimes and high emission intensities suggest that the compounds could be especially promising for an ultra-short pulse laser generation.
SnS nanosheets were synthesized by the injection of n -bis(piperidinedithiocarbamato)tin( iv ) into oleylamine at 230 °C.
Novel hybrid organic–inorganic coatings were successfully prepared, coated on mild steel, and subjected to different spectral, electrochemical and morphological characterizations.
We have studied a wide range of transition metals to find potential carbon nanotube (CNT) catalysts for chemical vapor deposition (CVD) production.
Based on first-principles plane-wave calculations, functionalization of the two-dimensional single-layered GaSe structure through vacancy and chemical element doping has been investigated. Our calculations show that the pristine GaSe monolayer, which is normally a non-magnetic, indirect-band-gap semiconductor, can ind…
The mesopore Ce–Ti–MoO x catalyst stabilized by an in situ formed carbon template showed more than 90% NO x conversion at 175–425 °C for SCR of NO x with NH 3 . Increasing temperature in the presence of carbon template contributed to the narrow mesoporous distribution and excellent low-temperature SCR activity.
We report both a facile, scalable method to prepare reduced graphene oxide hydrogels through the electrodeposition of graphene oxide and its use as an electrode for high-performance supercapacitors. Such systems exhibited specific capacitances of 147 and 223 F g(-1) at a current density of 10 A g(-1) when using H2SO4…
2D hyper-cross-linked microporous polymers (2D HCPs) were synthesized by emulsion polymerization using trithiocarbonate functionalized graphene oxide as 2D macromolecular CTA.
The effect of ultraviolet irradiation on fluorinated graphene (FG) dispersed in toluene was investigated for the first time. The chemical and physical characteristics of FG before and after ultraviolet irradiation were analyzed by UV-vis, FTIR, XPS,EDS, oxygen flask combustion (OFC), XRD, TGA, Raman, SEM, TEM and fluo…
High quality nearly monodisperse colloidal WO3-x nanorods with an aspect ratio ∼18 were synthesized using the thermal decomposition technique. The effects of a capping agent and an activating agent on the nanorod aspect ratio have been studied. Excess carrier concentration due to large oxygen vacancy and smaller width…
In the present study, an electrochemical exfoliation technique was used to synthesize a series of zinc oxide/graphene (ZnO/Gr) nanocomposites using different concentrations of zinc nitrate in an electrolyte solution.
Graphene quantum dots (GQDs) are shown to serve as phase transfer agents to transfer various types of nanoparticles (NPs) from non-polar to polar solvents. Thorough characterization of the NPs proves complete native ligand exchange. Pellets of this GQD-NP composite show that the GQDs limit the crystal size during spar…
Protein adsorption onto nanoparticles (NPs) in biological fluids has emerged as an important factor when testing biological responses to NPs, as this may influence both uptake and subsequent toxicity. The aim of the present study was to quantify the adsorption of proteins onto TiO2 NPs and to test the influence on cel…
Ultrathin MnO 2 nanosheets on flexible electrospun Co 3 O 4 doped carbon nanofiber membranes were synthesized via electrospinning combined with in situ redox reaction and used as high-performance supercapacitor electrodes.
The structural, mechanical and thermodynamic properties of 1 : 1 layered dioctahedral kaolinite clay, with ideal Al2Si2O5(OH)4 stoichiometry, were investigated using density functional theory corrected for dispersion interactions (DFT-D2). The bulk moduli of 56.2 and 56.0 GPa predicted at 298 K using the Vinet and Bir…
A rigid spherical particle floating on a liquid is a known problem with well-defined solutions. Under the combined effect of gravity and surface tension, the rigid particle deforms the liquid surface. However, in the case of a floating soft particle such as a liquid marble, not only the liquid surface but also the par…
Focusing on the failure mechanism of active materials during charging–discharging, the mechanical properties of Li–Sn alloys are studied by density functional theory, including elastic moduli, Poisson's ratio, anisotropy, and brittleness-ductility.
A novel amino-borane complex inside a stable metal organic framework was synthesized for the first time. It releases hydrogen at a temperature of 78 °C with no volatile contaminants and can be well reused. Its application as a size-selective reduction material in organic synthesis was also demonstrated.
Using the 3(rd) generation Grubbs' catalyst as the initiator, diblock brush polymer drug conjugates (BPDCs) were synthesized by sequential ring-opening metathesis polymerization (ROMP) of a hydrophilic poly(ethylene glycol) (PEG)-based norbornene (NB)-functionalized macromonomer and a hydrophobic paclitaxel (PTXL)-bas…