Materials Literature
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Abstract Nanoscale Ce‐ZrO 2 , synthesized by cationic surfactant‐assisted method, has useful partial oxidation activity to convert palm fatty acid distillate (PFAD; containing C 16 –C 18 compounds) to hydrogen‐rich gas with low carbon formation problem under moderate temperatures. At 1123 K with the inlet O/C ratio of…
Photo-assisted catalytic reduction of nitric oxide (NO) was studied over different metal-loaded TiO2 catalysts at room temperature. The activities of metal-loaded (Pt, Ag, Cu) TiO2 photocatalysts, prepared by the sol-gel method, were compared in a batch system using CH4 as the reducing agent. The Pt/TiO2 catalyst show…
Abstract A high phosphorus-containing unsaturated polyester resin (P-UPR) was synthesized by a one-step or two-step method with dimethyl methylphosphonate (DMMP) as a reactive flame retardant. Phosphorus content in the cured P-UPR could be increased to 3.0 wt %, and a low amount of 15.0 wt % DMMP used in the reactants…
Abstract Purpose – The purpose of this paper is to synthesise polyaniline‐SiO2 (PANI‐SiO2) composites and investigate the anticorrosion properties of polyaniline‐SiO2‐containing coating on Mg‐Li alloy. Design/methodology/approach – The PANI‐SiO2 composites were prepared by in situ chemical oxidative polymerisation in…
Purpose The purpose of this paper is to study the inhibitive and adsorption characteristics of ethanol extract of Garcinia kola and Cola nitida for the corrosion of mild steel in H 2 SO 4 solutions. Design/methodology/approach The inhibition efficiencies were evaluated using weight loss and thermometric methods while…
The (AO)(ABO3)n Ruddlesden-Popper structure is an archetypal complex oxide consisting of two distinct structural units, an (AO) rock salt layer separating an n-octahedra thick perovskite block. Conventional high-temperature oxide synthesis methods cannot access members with n > 3, but low-temperature layer-by-layer th…
Abstract The formalism of line symmetry groups for one-periodic (1D) nanostructures with rotohelical symmetry has been applied for symmetry analysis of single-walled titania nanotubes (SW TiO2 NTs) formed by rolling up the stoichiometric two-periodic (2D) slabs of anatase structure. Either six- or twelve-layer (101) s…
Abstract A CO 2 ‐stable dual phase membrane of the composition 40 wt % NiFe 2 O 4 ‐60 wt % Ce 0.9 Gd 0.1 O 2‐δ (40NFO‐60CGO) was synthesized in three different ways: mixing of the starting powders (1) in a mortar and (2) in a ball‐mill as well as by (3) direct in situ one‐pot sol–gel powder synthesis. Backscattered sc…
The PhaF is a nucleoid-associated like protein of Pseudomonas putida KT2442 involved in the polyhydroxyalkanoate (PHA) metabolism. Its primary structure shows two modular domains; the N-terminal PHA granule-binding domain (phasin domain) and the C-terminal half containing AAKP-like tandem repeats characteristic of the…
A theoretical study of Al(1-x)Ga(x)N, based on full-potential linearized augmented plane wave method, is used to investigate the variations in the bandgap, optical properties and non-linear behavior of the compound with the variation of Ga concentration. It is found that the bandgap decreases with the increase of Ga i…
Abstract Crystallization of calcium carbonate (CaCO 3 ) crystals by a gas‐liquid diffusion method has been carried out in aqueous solution using a double‐hydrophilic block copolymer (DHBC) poly(maleic anhydride)‐b‐poly(acrylic acid) (PMA‐b‐PAA). The as‐prepared products were characterized with X‐ray diffraction (XRD),…
We investigated the canonical ferroelectric response of a thin ferroelectric polymer film using a piezoelectric force microscopy method. The thin ferroelectric poly(vinyliden fluoride- ran -trifluoroethylene) layer with a thickness of was prepared on a (111) substrate by a Langmuir–Blodgett method. The flip speed into…
Abstract New octathiotetraphosphetane ammonium salts are obtained based on the reaction of white phosphorus (P 4 ) and elemental sulfur with aliphatic mercaptans in the presence of amines (morpholine , methylmorpholine, pyrrolidine, and N , N ‐dimethylbenzylamine). Both the salts and novel Cu(I) chloride complex with…
Abstract A mixed‐valent manganese tricapped Keggin polyoxometalate ( 3 ) has been designed by insertion of three Mn atoms from [Mn II Mn III 2 (μ 3 ‐O)(2‐Cl‐benzoato) 6 (py) 3 ] ( 1 ) into the vacant sites of the trilacunary precursor Na 10 [A‐α‐SiW 9 O 34 ] ( 2 ). This compound exhibits strong antiferromagnetic inter…
Empty cages: Iron/graphite core–shell nanoparticles are produced by pyrolysis of a mixture of acetylene and iron carbonyl. Then, the core–shell nanoparticles are heat treated in the range of 300–500 °C in the presence of NH4Cl. After filtration in water, the trapped iron particles are completely removed and hollow car…
The anisotropic diffusion of anions and cations in the columnar and isotropic phases of a fan-shaped imidazolium hexafluorophosphate salt is measured by (1)H and (19)F diffusion NMR experiments. The macroscopic orientation of the columnar phase is investigated by (2)H NMR spectroscopy. We find that the anions, confine…
Multiferroic bismuth ferrite lead titanate exhibiting both ferroelectricity and ferromagnetism in a single perovskite phase has been chemically synthesized in the form of nanocrystalline films with large surface/interface to volume atomic ratio. The films show both electric polarization and magnetization hysteresis lo…
We report the synthesis and characterization of a series of nanostructures and determine whether several distinct types of building blocks can be fashioned into linear nanostructures using hard-templates and electrochemical methods. We determine the aspects of molecular structure that influence morphology and propose…
Many techniques to transfer NPs from the oil phase into the water phase have been developed, but all have limitations that remain to be addressed, specifically low transfer yields and partial NP aggregation. One of the transfer processes involves emulsifying an oil suspension of NPs in water with surfactants, followed…
A highly responsive gas nanosensor operating at room temperature is reported. The nanosensor is formed by self-assembly of ZnO nanoparticles in a polyacrylic matrix spin-cast on p-type (100) Si at room temperature, in a CMOS compatible processing. The ZnO nanoparticles formed n-p heterojunction nanodiodes with the Si…