Showing papers in "Materials Research Bulletin in 2014"

TL;DR: In this article, the supercapacitive behavior of MoS2 nanostructures prepared by a facile one-pot hydrothermal approach using ammonium heptamolybdate and thiourea as starting materials is investigated.

TL;DR: In this article, the photo-catalytic decomposition mechanism is discussed through the detection of hydroxyl radical (OH ) by terephthalic acid photo-luminescence probing technique.

TL;DR: In this article, a solution casting method was used to synthesize poly vinyl alcohol (PVA) and zinc oxide (ZnO) nanocomposite, and the optical absorption spectrum of nano ZnO showed blue shift in the optical band gap energy.

TL;DR: In this article, a simple green method for the preparation of silver nanoparticles (AgNPs) using the plant extract of Cleistanthus collinus as potential phyto reducer was reported.

TL;DR: In this paper, a bloom-shaped birnessite type manganese oxide (δ-MnO2) nanostructures are synthesized using a simple hydrothermal process with an aim to fabricate high performance supercapacitors for energy storage electrode.

TL;DR: In this paper, a sol-gel method was employed to prepare BiFeO3 photocatalyst using Fe(NO3)3·9H2O and Bi( NO3) 3·5H 2O as starting materials and only ethylene glycol (C2H6O2, EG) was used as the solvent.

TL;DR: In this article, the electric and magnetic properties as well as the thermal stability of CoxFe3-xO4 nanopowders were investigated and shown to be stable in the presence of magnetic and electric currents.

TL;DR: In this article, a review summarizes the green methods employed in natural reduction of graphene oxide, which includes use of biomolecules, microorganisms and plant extracts, and issues and challenges are raised to provide pathways for future endeavors that will translate into service delivery for the benefit of human.

TL;DR: In this article, a novel g-C 3 N 4 /Cu 2 O composite photocatalyst was designed and prepared to overcome the drawback of low photocatalytic efficiency brought by electron-hole pairs recombination and narrow photo-response range.

TL;DR: In this article, the synthesis of boron nitride nanosheets (BNNSs) and study of their gas sensing properties were reported. But the authors did not report on the performance of the BNNS-based gas sensor.

TL;DR: In this paper, the authors show that bilayer MoS2 can be grown under an optimized mole ratio of 2:1 of S:Mo at 180°C for 50h.

TL;DR: In this article, a binderless Ni(OH)2 nanoflakes grown on Ni foam (NF)-supported vertically oriented graphene nanosheets (V-GNs) has been fabricated as a positive electrode material for asymmetric supercapacitor (ASC), coupled with activated carbon (AC) as a counter electrode material.

TL;DR: A reduced graphene oxide/NiAl-layered double hydroxide (RGO-LDH) was synthesized through a simple co-precipitation route as discussed by the authors.

TL;DR: In this paper, a modification of graphitic carbon nitride photocatalyst with acid was accomplished with a facile method through reflux in different acidic substances, which improved surface area, reduced structural size, enlarged band gap, enhanced surface chemical state, and facilitated photoinduced charge separation, contributing to the enhanced photocatalytic activity.

TL;DR: In this paper, a novel non-enzymatic electrochemical sensor device was fabricated for glucose detection based on nickel nanoparticles/graphene nanosheets (NiNPs/GNs) composites, which were synthesized through in situ chemical reduction procedure.

TL;DR: In this paper, the electrochemical performance of recovered MnO2 nanoflowers recovered from spent household zinc-carbon battery is studied by cyclic voltammetry, galvanostatic charge/discharge cycling and electrochemical impedance spectroscopy.

TL;DR: In this paper, the authors derived the intensity parameters of Er 3+ -doped novel oxyfluoride glasses from the absorption spectrum of 1.0% Er 2 O 3 doped glass and used them to calculate radiative properties for the important luminescent levels of er 3+ ions.

TL;DR: The preparation of mesoporous ceria and NiO/CeO 2 using a simple calcination method was investigated in this paper, and the results showed that NiO particles that aggregated in the presence of more than 3.5% NiO, resulted in a CO selectivity of 100% at temperatures above 700°C, whereas NiO selectivity is less than 100% under temperatures below 650°C.

TL;DR: In this paper, a full color emissive BaLa{sub 1.75−x}WO{sub 7}:0.25Dy{sup 3+}, xEu{sup3+} phosphors which peaked at 484 nm (blue), 572 nm (yellow), 593 nm (orange), and 617 nm (red) were synthesized by the traditional solid-state reaction method.

TL;DR: In this article, single phase nanostructured Eu-Ni substituted Y-type hexaferrites with nominal composition Sr 2 Co 2− x Ni x Eu y Fe 12− y O 22 ( x ǫ = 0.0 − 1, y Ǫ = 0 − 0.1) were synthesized by the normal microemulsion method and X-ray diffraction (XRD) technique was employed for phase analysis and indexing of each pattern corroborates that well defined Y type crystalline phase is formed.

TL;DR: In this article, a microwave heating reflux method for the fabrication of nickel-cobalt layered double hydroxide ultrathin nanoflakes decorated on graphene sheets (GS/NiCo-LDH) was reported.

TL;DR: It was concluded that antibacterial activity of nanoparticles depend on physicochemical properties of copper oxide nanoparticles and bacterial strain.

TL;DR: A water-based conductive carbon nanotube (CNT) ink was synthesized with single-walled CNT and sodium dodecylbenezenesulfonate as surfactant as mentioned in this paper.

TL;DR: In this paper, a polyaniline-based supercapacitor modified by the addition of an electrochemically active compound (hydroquinone, HQ) into the electrolyte (H2SO4) was investigated.

TL;DR: In this paper, the as-prepared SnS 2 /MWCNTs structures are investigated as anode materials for Li-ion batteries as compared with SnS2 nanoflakes.

TL;DR: In this paper, the use of nano-scale zero valent iron (nZVI) in the removal of Pb2+ from aqueous solution is studied as a function of pH, evaluating the structural and surface changes of the nZVI, as well as its magnetic properties after the sorption process.

TL;DR: In this article, the catalytic effect of Nitrated graphene oxide (NGO) for the thermal decomposition of ammonium perchlorate (AP) was investigated by differential scanning calorimetry (DSC).

TL;DR: The surface of amine-fuctionalized magnetic nanoparticles was coated with polyamidoamine dendrimer via of alkylation of Amine groups with methyl acrylate (Micheal addition route) as mentioned in this paper.

TL;DR: In this article, the authors used W/Nb codoped BIT ceramics to obtain high temperature piezoelectric properties for high temperature poling applications, including dielectric, electrical conduction, and electrical resistivity.

TL;DR: In this paper, the chrome-containing spinels, MgCr 2 O 4 and CoCr 2O 4, were prepared via sol-gel method using glucose as a complexing agent after calcination at 1400°C and investigated as catalysts for catalytic combustion of methane.