Materials Literature
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Abstract BACKGROUND Selective catalytic reduction ( SCR ) of NO with NH 3 has been proved to reduce nitric oxides in exhaust flue gas from coal‐fired power plants. The commercial V 2 O 5 ‐WO 3 ( MoO 3 )/ TiO 2 catalyst has the disadvantages of high reaction temperature (573–673 K), high conversion of SO 2 to SO 3 and…
Neurodegenerative diseases including Alzheimer's, Parkinson's, and type II diabetes are recognized to be related to proteins misfolding into amyloid fibrils and other aggregates with a β-sheet conformation. Herein, self-assembled peptide micro/nanoarchitectures were designed and prepared to mimic those aggregates. A s…
We exploited a new approach to prepare nanocomposites of semiconductor and noble metal via reaction between sulfur and bimetallic nanocrystals in ODA solvent. Various nanostructures including core–shell, porous, and heterostructure can be prepared, depending on the structure of bimetallic nanocrystals. For example, co…
In this paper we report a new, simple gelation system based on an acyl hydrazone building block. These gels can be formed by simple mixing of aldehyde and hydrazide followed by a heat/cool cycle, and constitute a simple type of multi-component gel, in which a new covalent bond is formed. Importantly, we demonstrate tw…
A comparative single-crystal X-ray diffraction structure analysis of the family of Al-Cu-Me (Me = Co, Rh and Ir) decagonal quasicrystals is presented. In contrast to decagonal Al-Cu-Co, the other two decagonal phases do not show any structured disorder diffuse scattering indicating a higher degree of order. Furthermor…
We present a spectroscopic study that reveals that the metal-insulator transition of strained VO${}_{2}$ thin films may be driven towards a purely electronic transition, which does not rely on the Peierls dimerization, by the application of mechanical strain. Comparison with a moderately strained system, which does in…
Here we report that branch poly(ethylenimine) (BPEI) could be used as both a stabilizer and a reducing agent in the preparation of long-term stable polycations-functionalized graphene nanosheets (GNs) suspension with concentration as high as 5 mg mL(-1). UV-vis spectroscopy, Fourier transform infrared, X-ray photo-ele…
To decrease single-wall carbon nanotube (SWCNT) lengths to a value of 100-200 nm, aggressive cutting methods, accompanied by a high loss of starting material, are frequently used. We propose a cutting approach based on low temperature intensive ultrasonication in a mixture of sulfuric and nitric acids. The method is n…
A novel dispersive delay structure (DDS) based on a composite right/left-handed (CRLH)-CRLH coupler is proposed and demonstrated by both full-wave and experimental results. The experimental prototypes are compact and shielded multilayer DDSs implemented in low-temperature co-fired ceramics technology. Compared to the…
Multicolor and monodisperse La2O3:Ln3+ (Ln3+ = Eu3+, Tb3+, Dy3+, Sm3+, Er3+, Ho3+, Tm3+, Yb3+/Er3+, Yb3+/Ho3+) microspheres were prepared by a homogeneous precipitation method followed by a subsequent calcination process. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TE…
We develop a stochastic network model for charge transport simulations in amorphous organic semiconductors, which generalizes the correlated Gaussian disorder model to realistic morphologies, charge transfer rates, and site energies. The network model includes an iterative dominance-competition model for positioning v…
Novel Eu 3+ ‐doped transparent oxyfluoride glass‐ceramics containing BaLuF 5 nanocrystals were successfully fabricated by melt‐quenching technique for the first time. Analyses of XRD patterns prove that the new precipitated glass‐ceramics are crystallized in cubic BaLuF 5 based on isostructural BaGdF 5 . Intense red e…
Theoretical research on the two-dimensional crystal structure of hexagonal boron nitride (h-BN) has suggested that the physical properties of h-BN can be tailored for a wealth of applications by controlling the atomic structure of the membrane edges. Unexplored for h-BN, however, is the possibility that small addition…
Nanoparticle transport in natural settings is complex due to interactions with the surrounding environment. In this study, the impact of UVA irradiation and humic acid (HA) on deposition of aqueous fullerene nanoparticles (nC₆₀) on a silica surface as a surrogate for natural sediments was studied using packed column e…
In the present study, nanocomposites containing Ag–Au alloy nanoparticle ensembles with various compositions on polytetrafluoroethylene were prepared by physical vapor deposition. After a certain time of immersion of the samples in water, oxidation and dissolution of the Ag nanoparticles (AgNPs) occurred, and changes…
In recent years poly methyl aniline has been reported as one of the efficient corrosion inhibitors of mild steel in acidic media. In view of the major limitation of the insolubility of polymethyl aniline PMA, we propose to convert PMA into a water soluble composite using supporting polymer polyvinylpyrrolidone to get…
In many adult stem cell lineages, the continuous production of functional differentiated cells depends on the maintenance of progenitor cells in an undifferentiated and proliferative state, as well as the subsequent commitment to proper terminal differentiation. In the Drosophila male germline stem cell (GSC) lineage,…
We present ab initio two-dimensional extended Hubbard-type multiband models for EtMe${}_{3}$Sb[Pd(dmit)${}_{2}$]${}_{2}$ (where dmit is 1,3-dithiole-2-thione-4,5-dithiolate) and $\ensuremath{\kappa}$-(BEDT-TTF)${}_{2}$Cu(NCS)${}_{2}$ [where BEDT-TTF is bis(ethylenedithio)-tetrathiafulvalene] after a downfolding scheme…
Hazard identification is an important step in assessing nanomaterial risk and is required under multiple regulatory frameworks in the US, Europe and worldwide. Given the emerging nature of the field and complexity of nanomaterials, multiple studies on even basic material properties often result in varying data pointin…
In this work, a well-constructed carbon nanotube (CNT) mesh/polyaniline (PANI) composite film was fabricated as the electrode of flexible supercapacitor via alternatively cross-stacking superaligned CNT sheets and in situ coating PANI from chemical solution. Compared with other CNT/PANI composites using random-constru…