Materials Literature
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Implementing patterned fibrous matrices can offer a highly valuable platform for spatially orchestrating hierarchical cellular constructs, specifically for neural engineering approaches, in which striated alignment or directional growth of axons are key elements for the functional recovery of damaged nervous systems.…
The objective of this study was to compare the adsorption of nitrate ions using two conducting polymers—polypyrrole (PPy) and polyaniline (PANi)—as adsorbents. The effects of different adsorption parameters including contact time, pH, temperature, initial concentration, adsorbent dosage, and presence of orthophosphate…
Coconut shell-based activated carbon (CSAc) was prepared by chemical activation method using microwave-induced KOH technique. The activation process was successfully carried out with varying microwave power ranging from 100 to 1000 W and impregnation ratio of 1.0 to 3.0. The surface area, pore sizes, surface morpholog…
In this study, multi-layered-graphene (MLG) reinforced unsaturated polyester (UP) were prepared by adding different weight percentage of graphene in polyester resin and subsequently cross linked using mixture of methyl ethyl ketone peroxide. The mechanical properties of polyester-graphene were also studied. The maximu…
Accurate nanoparticle mass characterization is a challenging task, especially at a single particle level. To solve this problem, a strategy for the mass measurement of single intact nanoparticle was proposed. A microscopy-based ion trap mass spectrometer was built up. To improve the detection sensitivity, a cylindrica…
The isolation of microcryostalline cellulose (MCC) from rice husk (RH) via acid hydrolysis process has been successfully prepared by using different molarity of nitric acid (HNO 3 ) and hydrochloric acids (HCl). The properties of MCC obtained such as tapping and bulk densities, thermal stability and percentage crystal…
Abstract We synthesized a characteristic graphene-layered carbon particle composite using pyrolysis of hydrocarbon in an electric field and consecutive activation treatment under CO2 atmosphere. TEM, N2 adsorption isotherm, Raman spectroscopy, and XPS revealed structural features of this unique composite. Graphenes an…
The structural and electronic properties of small uranium oxide clusters UnOm (n=1-3, m=1-3n) are systematically studied within the screened hybrid density functional theory. It is found that the formation of U-O-U bondings and isolated U-O bonds are energetically more stable than U-U bondings. As a result, no uranium…
A neutron diffraction study of (K x Na 1− x )NbO 3 -based ceramics has been carried out from 5 K to high temperatures well above the Curie temperature. The diffraction data were analysed using Rietveld refinement. For pure KNN samples, especially at the Na-rich side of the phase diagram, the low-temperature structure…
Calix[4]arenes (C[4]s) are versatile platforms for the construction of polymetallic clusters containing paramagnetic metal ions. Synthetic modification at the C[4] methylene bridge allows for the design of bis-C[4]s that, depending on the linker employed, can be used to either dictate which clusters can be formed or d…
In this paper, nitrogen-doped activated carbons obtained from rapeseed residues (N-RCs) as supercapacitor electrodes are successfully synthesized by a simple chemical activation method. The field emission scanning microscope, transmission electron microscopy, and N 2 adsorption-desorption tests demonstrate that N-RCs…
Abstract This study describes an eco-friendly, economical method to synthesize semiconductor zinc sulfide (ZnS) nanoparticles using the cell free extract of Chlamydomonas reinhardtii. Physicochemical parameters like pH, temperature and cell free extract concentration were optimized. Spherical particles measuring 8–12…
We investigate photoluminescence from individual “giant” CdSe/CdS core/thick-shell quantum dots (gQDs) placed near an epitaxial Ag film with an atomically smooth surface. The key observation is that the lifetimes of the gQDs are drastically reduced and exhibit a remarkably narrow distribution compared to the gQDs depo…
Abstract Deposition of Ni‐based cyanide bridged coordination polymer (NiCNNi) flakes onto the surfaces of graphene oxide (GO) sheets, which allows precise control of the resulting lamellar nanoarchitecture by in situ crystallization, is reported. GO sheets are utilized as nucleation sites that promote the optimized cr…
Field-emission displays (FEDs) constitute one of the major foci of the cutting edge materials research because of the increasingly escalating demand for high-resolution display panels. However, poor efficiencies of the concurrent low voltage cathodoluminescence (CL) phosphors have created a serious bottleneck in the c…
The aim of this study is to compare the optical scattering properties of different gold nanoparticles (GNPs), with different shapes (spherical, GNSs, and flower-shaped, GNFs), sizes (20, 30, and 50 nm), and surface chemistries (with and without PEG). These scattering properties give geometrical characterization of hyd…
In this article, Mn 3 O 4 nanoparticles are prepared directly on a commercial high conductive carbon black (CB) to form a Mn 3 O 4 /carbon black composite (Mn 3 O 4 /CB) by a chemical synthesis method. The TEM results indicate that the microstructure of the Mn 3 O 4 nanoparticles in the Mn 3 O 4 /CB composite is in go…
In this work, density functional theory plane-wave pseudo potential method, with local density approximation (LDA) and generalized gradient approximation (GGA) are used to investigate the structural, elastic, mechanical and thermodynamic properties of the intermetallic compound Mg 3 Rh. Comparison of the calculated eq…
Ferroelectric probe data storage has been proposed as a novel data storage method in which bits are recorded based on the polarization directions of individual domains. These bits are subsequently read by scanning nonlinear dielectric microscopy. The domain walls of typical ferroelectric materials are quite thin: ofte…
Strain-induced martensite in a newly developed lean duplex stainless steel (DSS) 2002 after tensile deformation was characterized by optical metallographic microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction and electron backscatter diffraction techniques. Magnetic property me…