Materials Literature
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Herein, we report on the production of poly(diallydimethylammonium chloride) (PDDA) functionalized reduced graphene oxide (PDDA-rGO) with the use of PDDA as a reducing and stabilizing agent. Atomic force microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy were used to characterize the res…
A Na4Fe(CN)6/NaCl solid solution was synthesized and investigated as a cathode material for sodium ion batteries. Pure Na4Fe(CN)6 and NaCl do not work as cathode materials for sodium ion batteries, while a sample of Na4Fe(CN)6/NaCl demonstrated a remarkably enhanced Na+ insertion/extraction capability and electrochemi…
A brief review is given of the studies in combustion chemistry and decomposition kinetics of forest fuels (FF). The methods used in the study to investigate the FF pyrolysis kinetics and the combustion of the Siberian forests are described. The experiments on FF pyrolysis were conducted at high heating rates (150 K/s)…
Recently, in the field of biomaterials for soft tissue scaffolds, the interest of their modification with natural polymersis growing. Synthetic polymers are often tough, and many of them do not possess fine biocompatibility. On the other hand, natural polymers are biocompatible but weak when used alone. The combinatio…
Drilling induced in fibre reinforced polymer resulted in high rate of parts rejection and thus affects the in-service performance of the composite product. Therefore, the tensile testing of hybrid composite with drilled holes is necessary to render them satisfaction in industrial application. The objective of the pres…
Using gamma-ray spectrometry, the activity concentration of naturally occurring radionuclides 226Ra, 212Pb, 214Pb, 232Th, and 40K was determined in sand beaches samples from different areas in Guarapari, Espírito Santo state, from Brazil. The absorbed dose rates and annual effective dose were calculated and the result…
The first "off-on" dual-output fluorescent assay based on reaction-promoted self-assembly approach for glutathione recognition in near infrared region over other relative thiols including cysteine and homocysteine was constructed with high selectivity and large Stocks shift (about 220 nm). The fluorescence enhancement…
Modified atmosphere packaging (MAP) has become a popular method for packaging foods as it can extend the shelf life of food with minimal quality defect. Oxygen, nitrogen and carbon dioxide are the common gases used in MAP, Oxygen and carbon dioxide inclusive as only these two gaseous have the preservative effects on t…
A systematic study was carried out to investigate the promotion effect of manganese on the performance of a coprecipitated iron-manganese bimetallic catalyst for the light olefins synthesis from syngas. The catalyst samples were characterized by N2 physisorption, transmission electron microscopy (TEM), X-ray photoelec…
The role of bilayerd vesi cles as efficient carriers for drugs, vaccines, diagnostic agents and other bioactive agents have led to a rapid advancement in the liposomal drug delivery system. Moreover, the site avoidance and site-specific drug targeting therapy could be achieved by f ormulating a liposomal product, so a…
Tin Oxide (SnO2) nanoparticles powder have been synthesized by chemical precipitation method. The samples were characterized by X-ray diffraction, UV-Visible absorption and scanning probe Microscope SPM. The Xray analysis shows that the obtained powder is SnO2 with tetragonal rutile crystalline structure and the cryst…
A novel synthetic route is designed, employing both high temperature and a nontoxic organic structure-directing agent (SDA), for the synthesis of high silica zeolite Y. The N-methylpyridinium used as an organic SDA is stable during the synthesis, and the high silica zeolite Y shows high hydrothermal stability and good…
Two multifunctional colorimetric and fluorescent chemosensors were synthesized by the conjugation of BODIPY (4,4-difluoro-1, 3, 5, 7-tetramethyl-4-bora-3a, 4a-diaza-s-indacene) and di(2-picolyl)amine with benzyl groups (para-substituted, L1; meta-substituted, L2) as spacers, for selectively sensing copper(II) ions in…
We report a facile, scalable, and low cost chemical bath deposition of vertically aligned TiO2 nanoplatelet arrays on various substrates including fluorine-doped tin oxide coated glass substrates and their applications for photoelectrochemical (PEC) water splitting and dye sensitized solar cells. The TiO2 arrays consi…
Glycerol is at present abundantly co-produced in the biodiesel fabrication and can be used as fuel in Direct Glycerol Fuel Cells (DGFC) for cogeneration of electricity, value-added chemicals and heat. With this motivation, in the present work, we investigated at a fundamental level the oxidation of glycerol over glass…
TEMPO polymer-grafted silicas were synthesized by “grafting from” and “grafting to” methods using RAFT polymerization, and their catalytic activities as a new class of solid state catalyst for oxidation reactions with alcohols demonstrated.
Crystallization of KDP-family crystals depends on the chemical bonding behavior of the crystal constituents in aqueous solution, which are sensitive to solution conditions. We applied in situ ATR-IR spectroscopy combined with a morphology-evolution calibration to declare the structural dynamics of NH4+ and H2PO4− duri…
Predictive molecular simulations were utilized to screen an array of microporous organic solids in order to provide insight into important design principles for increasing porosity in these types of materials. The computational screening considered 22 organic molecules of intrinsic microporosity (OMIMs) incorporating…
A series of homologous push–pull compounds, in which identical donor (a dimethylamino) and acceptor (a malonate ester) functionalities endcap crescent PPV fragments, exhibit striking differences in their supramolecular recognition of cations acting as Lewis acids. The shorter conjugated compound (one phenyl ring) coor…
Fundamental Investigation of Chemical Mechanical Polishing of GaAs in Silica Dispersions: Material Removal and Arsenic Trihydride Formation Pathways, Matovu, J. B., Ong, P., Leunissen, L. H. A., Krishnan, Sitaraman, Babu, S. V.