Materials Literature
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A cellulose-derived carbonaceous solid acid catalyst that has superparamagnetism was synthesized by incomplete hydrothermal carbonization of cellulose followed by Fe3O4 grafting and –SO3H group functionalization. The as-prepared superparamagnetic carbon catalyst contained –SO3H, –COOH, and phenolic –OH groups and exhi…
We demonstrate a facile and effective way for the fabrication of a flexible, homogeneous and neat α-MoO3 thin-film electrode for lithium-ion batteries with high performance without using any binder and conductive additives. Single-crystalline α-MoO3 nanobelts with uniform width of around 200 nm and length at the micro…
Microbial fuel cells (MFCs) show promise as a technology for electricity generation from waste, and their performance critically depends on the electrode materials and their structures. Herein, a novel MFC anode was fabricated by electro-depositing polyaniline (PANI) networks onto graphene nanoribbons (GNRs)-coated ca…
A stable porous metal-organic framework (MOF) containing methyl viologen cations exhibits reversible photochromic, thermochromic and fluorescence changes via host-guest interactions, and can be used for fast and selective detection of oxygen by naked eye recognition of color change within five seconds.
Biomaterial science is an expanding area, which encompasses a wide range of medical knowledge involving arthroplasty, cochlear implants, heart valves designing, lenses, dental fixation and tissue engineering. Within this context, in vitro cell culture on polymer scaffolds is one of the adopted strategies for tissue cr…
Porous chalcogels CoMoS4 and NiMoS4 made by a facile solution reaction displayed good electrocatalytic activity in the redox reaction of the I(-)/I3(-) shuttle. Dye-sensitized solar cells with these ternary compounds as counter electrodes (CEs) showed photovoltaic performance similar to the devices made with noble met…
The photostability of two donor polymers, DPP-TT-T and PTB7, is compared in neat films and blend films with PC(71)BM. In both neat and blend films, PTB7 is shown to be relatively unstable. This observation is shown to correlate with transient optical studies of long lived polymer triplets and with molecular probe stud…
Through a simple polymeric carbon assisted method, a yolk-shell structured Fe(2)O(3)@mesoporous SiO(2) nanoreactor was synthesized and showed excellent activity in Fenton-like reactions toward methylene blue total degradation.
Tungsten trioxide (WO3) is being investigated as one of the most promising materials for water oxidation using solar light. Its inherent surface-related drawbacks (e.g., fast charge recombination caused by surface defect sites, the formation of surface peroxo-species, etc.) are nowadays being progressively overcome by…
The application spectrum of low cost material reinforced metal matrix composites is growing rapidly in various engineering fields. In this way, present study indicates the possibilities of reinforcing aluminium alloy (AlSi10Mg) with locally available inexpensive rice husk ash for developing a new material. A rice husk…
Granular physics has made considerable progress during the past decades in the understanding of static and dynamic properties of large ensembles of interacting macroscopic particles, including the modeling of phenomena like jamming, segregation and pattern formation, the development of related industrial applications…
Natural gas, refinery gas, and coal gas contain acid gases such as hydrogen sulfide (H 2 S) and carbon dioxide that must be removed from the gas stream due to the toxicity of H 2 S and to prevent corrosion to piping and production facility caused by the acid gases. In this article, current technologies for the acid ga…
Nitrogen and silica co-doped graphene nanosheets (NSi-GNS) have been prepared via high-temperature annealing of N and Si-containing graphene oxide–ionic liquid (GO–IL) composite. As a p-type semiconductor, the as-synthesized NSi-GNS shows excellent NO2 gas sensing ability with high response value.
We describe a computational procedure to predict chemically synthesizable organic structure directing agents (OSDAs) for zeolites. To identify these structure-directing agents, we apply transformations from organic chemistry to a library of available reagents. The compounds are scored based upon stability under synthe…
We report the fabrication of keratin films with porosity using keratin, for controlled drug delivery systems. Feathers are currently an important waste product from the poultry industry, however abandoned down products cause an environmentally difficult disposal problem as they are not efficiently extracted and applie…
A Na3V2O2(PO4)2F/reduced-graphene-oxide (RGO) sandwich structure has been synthesized by a facile one-step solvothermal method. Cubic Na3V2O2(PO4)2F nanoparticles are homogeneously trapped between conductive RGO sheets during its growth and assembled into a compact sandwich structure, which allows the electrically ins…
We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3-D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the nonwetting oil and subsequent imbibition by the wetting fluid. During imbibition, the…
Controllable drug delivery is one of the important ways for the therapy of bone cancer. Conventional mesoporous silica nano-particles may lack dual properties for combining controllable delivery of anti-cancer drugs and bone-forming bioactivity for bone cancer therapy. The aim of this study is to synthesize mesoporous…
Nano-size non- and amino-functionalized flexible crystalline metal-organic frameworks (MOFs) MIL-53(Al) and NH2-MIL-53(Al), two co-polyimides 6FDA/ODA-DAM (1 : 1 and 1 : 4) and cross-linked co-polyimide 6FDA-ODA-DAM (1 : 1, 2% agent cross-linking APTMDS) were used to prepare mixed matrix membranes (MMMs) whilst membra…
We report that the oxygen reduction reaction (ORR) activities of (001)-oriented manganese perovskite films decrease from 10 to 1 nm by more than an order of magnitude, which can be attributed to the barrier associated with interfacial band bending that impedes electron transfer to the electrolyte, and reduction of Mn3…