Materials Literature
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Novel biobased high functionality epoxy resins were synthesized by the epoxidation of sucrose ester resins of vegetable oil fatty acids (SEFA). A series of sucrose esters of fatty acids were epoxidized by peracetic acid generated in situ from hydrogen peroxide and acetic acid in the presence of an ion exchange resin c…
Hydrazine borane N2H4BH3 (HB, 15.4 wt% H) is a promising chemical hydrogen storage material. Herein, we report high-extent dehydrogenation of HB (i.e.hydrolysis of the group BH3 and decomposition of the moiety N2H4) in the presence of nickel–platinum nanoparticles (NPs) at 50 °C. Using Ni0.89Pt0.11 NPs, 5.79 ± 0.05 eq…
Crystalline and amorphized MOFs (Cu(3)(BTC)(2)) have been demonstrated to be excellent catalysts for CO oxidation. The catalytic activity can be further improved by loading PdO(2) nanoparticles onto the amorphized Cu(3)(BTC)(2).
The Mg(OH)2@reduced graphene oxide (rGO) composite (MGC) was synthesized via a chemical deposition method. Its mesoporous structures and application as an adsorbent for the removal of methylene blue (MB) from water were investigated. The Mg(OH)2 nanosheets were formed and dispersed homogeneously onto the surface of rG…
A two-step cation exchange procedure has been developed for synthesizing PbS/CdS core/shell quantum dots (QDs) with a much thicker shell than previously reported, which expands the flexibility of the current cation exchange approach. The thick-shell QDs allow relatively easy observation of the core/shell morphology by…
Hollow core, mesoporous shell carbon nanospheres (HCMSs) with large bimodal mesopores (6.4 and 3.1 nm) and high surface area (1704 m(2) g(-1)) have been synthesized by a triconstituent surface co-assembly of monodisperse silica nanospheres method. The resulted HCMS show a high specific capacity of 251 F g(-1) at 50 mV…
The difficult sintering of BaZr0.8Y0.2O3−δ (BZY20) powders makes the fabrication of anode-supported BZY20 electrolyte films complex. Dense BZY20 membranes were successfully fabricated on anode substrates made of sinteractive NiO-BZY20 powders, prepared by a combustion method. With respect to traditional anode substrat…
Heterogeneous photocatalysis offers a promising route to realize green oxidation processes in organic synthesis. In this research, the solvent-free selective photocatalytic oxidation of benzyl alcohol to benzaldehyde in the presence molecular oxygen was studied by using TiO2 and modified TiO2 as photocatalysts. The su…
The preparation and characterization of biocomposite materials with improved properties based on poly(lactic acid) (PLA) and bacterial cellulose, and, for comparative purposes, vegetal cellulose fibers, both in their pristine form or after acetylation, is reported. The composite materials were obtained through the sim…
The ultra-low density graphene xerogel was prepared through the chemical reduction of graphene oxide suspension using a hypophosphorous acid-iodine mixture. The chemically converted graphene xerogel (CCGX) exhibited superior electrical conductivity (up to 500 S m(-1)) and high C/O atomic ratio (14.7), which were the h…
Ag–Cu nanoalloys were synthesized by chemical co-reduction of their metal salts in aqueous solution with hydrazine hydrate, in the presence of complexing agent and stabilizer, preventing the oxidation of copper, as revealed by XPS. Their antibacterial behavior was tested against Escherichia coli strains, attesting far…
Hydrolytically-labile hydrazones in peptide amphiphiles were studied as degradable tethers for release of the drug nabumetone from nanofiber gels. On-resin addition of the novel compound tri-Boc-hydrazido adipic acid to a lysine ε-amine allowed for precise placement of a hydrazide in a peptide sequence.
In this paper, a cyan-emitting phosphor BaZrSi3O9:Eu2+ was synthesized and evaluated as a candidate for white light emitting diodes (WLEDs). This phosphor shows strong and broad absorption in 380–420 nm region, and the emission intensity of the optimized BaZrSi3O9:Eu2+ was found to be 90% and 198% of that of the comme…
Structures and electronic properties of clusters of an all-Si analogue of graphene, silicene, have been studied through quantum chemical calculations. The structures of the six-membered rings show interesting chair like puckering, which for large sheet-like clusters form ordered ripples. Binding energies, HOMO-LUMO ga…
The aim of this work is to investigate the influence of neutron irradiation condition, especially temperature, on irradiation hardening and microstructure development in irradiated tungsten-rhenium (W-Re) alloys. Neutron irradiations were carried out in JOYO at the range of 400 to 750°C, up to 1.54 dpa. Micro Vickers…
We describe a combined electrochemical and first principle density functional study to probe the corrosion inhibiting and adsorption behavior of methionine (Met) and phenylalanine (Phe) on polycrystalline and nanocrystalline iron in acid media. Met functioned as a better inhibitor for both Fe microstructures, and was…
A novel core-shell structural Fe(3)O(4)@MgAl-LDH@Au nanocatalyst was simply synthesized via supporting Au nanoparticles on the MgAl-LDH surface of Fe(3)O(4)@MgAl-LDH nanospheres. The catalyst exhibited excellent activity for the oxidation of 1-phenylethanol, and can be effectively recovered by using an external magnet…
Polypyrrole (Ppy) was synthesized using Ferric Chloride (FeCl3) as oxidant. The ratio of monomer to oxidant was 1:2.4. The polymerization was carried out at 5。C. Attempts were made to increase the electrical conduc-tivity by using various dopants viz. Lithium per Chlorate (LiClO4), para-Toluene Sulfonate (p-TS) and Na…
The introduction of graphene into a polymer matrix can markedly improve its mechanical properties and electrical conductivity. We report herein a novel strategy to fabricate polyester/reduced graphene oxide composites via simultaneous dispersion and thermo-reduction of graphene oxide (GO) during in situ melt polyconde…
Poly(lactides) (PLAs), or poly(lactic acid)s, are among the first commercial biodegradable polymers that have the potential to become commodity plastics. meso-Lactide, a by-product of L-lactide production, will become more easily available. Highly stereoregular poly(meso-lactides) should be crystalline and thus intere…