Materials Literature
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Two-dimensional Bi2S3 networks have been fabricated through a soft chemical route, which is first developed for fabrication of chalcogenide 2D networks without the assistance of any templates or catalysts. The aspect ratio of Bi2S3nanorods in the 2D networks can be kinetically controlled and tuned by adjusting the exp…
Cellulose fibers were converted into a valuable cellulose derivative, which is easily marketable with additional values. Alkali cellulose and carboxymethyl cellulose (CMC) is the most important cellulose derivatives. Alpha-cellulose was furnished as raw material for production of CMC, which is obtained from short cott…
We report the synthesis of 9,10-disubstituted-2,3,6,7-tetraphenylanthracenes, of which the photophysical properties are altered significantly by the 9,10-functionalities; the emission wavelengths range from 410 to 610 nm with outstanding quantum yields for most fluorophores.
The interaction of dibenzo-p-dioxin (DD), from aqueous suspension, with smectite was investigated using in situ vibrational spectroscopy (FTIR and Raman), structural and batch sorption techniques. Batch sorption isotherms were integrated with in situ attenuated total reflectance (ATR)-FTIR and Raman spectroscopy and X…
Inductively coupled plasma mass spectrometry (ICPMS) measurements are used to study with unprecedented accuracy and precision the formation and stoichiometry of the nanoparticle core and shell of CdSe quantum dots (QDs).
The crystal-structure, crystal-chemistry, and low-temperature behavior of a natural phillipsite-Na from the “Newer Volcanic Suite,” Richmond, Melbourne district, Victoria, Australia [K 0.75 (Na 0.88 Ca 0.57 ) Σ1.45 (Al 2.96 Ti 0.01 Si 5.07 )Σ 8.04 O 16 ·6.2H 2 O (Z = 2), a = 9.9238(6), b = 14.3145(5), c = 8.7416(5) Å,…
A recent experiment (X. F. Gao and L. Jiang, Nature 432, 36 (2004)) showed that a water strider statically standing on water can bear a load up to 60 times its body weight with its middle and hind legs, which tread deep puddles without piercing the water surface. This fact has been ascribed to the superhydrophobicity…
For the first time, the structure and dynamics of H 2 O in the interlayer of anomalous 11 Å tobermorite have been analyzed based on ab initio molecular dynamics simulations. The simulations provide detailed information on the structure of the hydrogen bonds formed by H 2 O molecules and OH groups. The calculated struc…
The authors tried to achieve artificial photosynthesis systems by using gels to generate hydrogen when visible light and water are supplied. Three types of gels involving an electronic transmission circuit with a sensitizer, an electron acceptor and a catalyst were designed. The functional groups were arranged closely…
The effect of Cu doping (0.08–4%) on the structural, electrical, optical, and optoelectronic properties of sol-gel ZnO thin films deposited on glass substrates have been investigated. X-ray diffraction studies show that the doped films are single-phase wurtzite structure with random orientations. A decreasing trend in…
S.671-677
We present an analytical device model for a graphene bilayer field-effect transistor (GBL-FET) with a graphene bilayer as a channel and with back and top gates. The model accounts for the dependences of the electron and hole Fermi energies as well as energy gap in different sections of the channel on the bias back-gat…
The wettability of the steel surface is an important factor co-determining the risk of corrosion in multiphase pipelines for transportation of oil and gas. The present paper deals with the effect of carbon dioxide (CO2) corrosion inhibitors on the wettability of carbon steel with ferrous carbonate (FeCO3) deposits. Th…
We review electronic structure calculations of finite-length semiconducting carbon nanotubes using time-dependent density functional theory (TD-DFT) and the time dependent Hartree-Fock (TD-HF) approach coupled with semi-empirical AM1 and ZINDO Hamiltonians. We specifically focus on the energy splitting, relative order…
Multilayer thin films of anionic gold nanoparticles (AuNPs) and cationic phosphorus dendrimers were deposited on 3-(diethoxymethyl-silyl)propylamine (3-APDMES)-coated substrates using layer-by-layer (LbL) assembly driven by electrostatic interactions. The growth of Au/dendrimer multilayers composed of AuNPs with diame…
We have fabricated 2D and 3D structured organosilcates from epoxy functionalized polyhedral oligomeric silsesquioxanes (POSS) cage materials using holographic lithography, which can be conveniently converted to silica structures by thermal removal of the organic moieties.
The reaction of the heteroscorpionate lithium salts [Li(pbpamd)(THF)] [pbpamd = N,N'-diisopropylbis(3,5-dimethylpyrazol-1-yl)acetamidinate] and [Li(tbpamd)(THF)] [tbpamd = N-ethyl-N'-tert-butylbis(3,5-dimethylpyrazol-1-yl)acetamidinate] with 1 equivalent of ZnCl2 in THF affords very high yields of the neutral heterosc…
By surface modification of MFI microcrystals with sec-butanol and pre-coating the substrate with a temporary water layer, a convenient process is developed to directly assemble anisotropic MFI microcrystals into highly b-oriented monolayers on various substrates with different surface conditions.
The synthesis, characterization and in vitro anti-HIV activity of a series of generation one dendrimers having phosphonate groups with pendant alkyl chains are described. The influence of the lateral alkyl chains on the biological properties was correlated to (1)H-(1)H NOESY experiments.
Implementation of hydrogen storage systems requires moderate bonding strength. However, this goal has remained a challenge, either due to the weak physisorption or extremely strong chemisorption. Here, we report on a new phenomenon, namely that H2 binding can be externally enhanced (or weakened) via superimposition of…