Materials Literature
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The solvent promoted aggregation behaviour of a meso-substituted amphiphilic corrole derivative occurs with the formation of aggregates with regular morphology, different from those obtained in the case of related porphyrin structures, opening interesting perspectives for the application of these derivatives in import…
In summer 2004 and 2006 the TOHYCO-Riderabus with supercapacitors and IPTbwas operated by the IIEECfor public transport services in Lucerne. A second generation version of a supercapacitor storage SAMdwas implemented and tested. A very important step in industrializing hybrid vehicles with SAM became fulfilled. The qu…
The uptake of aqueous Ba2+ ions by abiogenic calcite and aragonite was studied over a wide range of concentration; 1.0 × 101, 5.0 × 101, 1.0 × 102, 5.0 × 102, 1.0 × 103, 5.0 × 103, and 1.0 × 104 mg/L. The uptake process was characterized using ICP-AES, XRPD, SEM/EDS, and FTIR techniques. Up to the initial concentratio…
Currently, there is much public discussion about the realization of a hydrogen economy as a viable alternative for future large-scale energy sources. Hydrogen as an energy source has several compelling features. For example, its gravimetric energy density is three times that of oil, its combustion and fuel cell produc…
The “nominal grain size” (average grain size) is generally applied to Hall-Petch relationship to evaluate grain refinement strengthening in polycrystalline materials. However, the steels with wide grain size distribution (duplex-grained structure) may not deform uniformly but yield preferentially from larger grains to…
Several N-alkyl and N-phenyl derivatives of 6-amino- () and 6,6'-diamino-2,2':6',2''-terpyridine () were synthesized, and their fluorescence properties were studied. A successive red-shift was observed as the number of the N-substituted groups increased. It was also shown that the susceptivity of the fluorophores to a…
Chloride-induced stress corrosion crack growth rates were measured for candidate canister materials in a simulated marine atmospheric environment. Half-inch compact tension specimens were used to obtain stress corrosion crack growth rates by applying a direct-current potential-drop method to measure crack lengths. The…
Reactive diffusion between solid Fe and liquid Zn was experimentally examined using Fe/Zn diffusion couples prepared by an immersion technique. Using this technique, a pure iron sheet was immersed in a molten pure Zn bath with a constant temperature of T=723 K (450°C) for various times up to t=7.2×103 s (2 h). The mic…
Article Indirect polyelectrolyte titration of cellulosic fibers – Surface and bulk charges of cellulosic fibers was published on January 1, 2007 in the journal Nordic Pulp & Paper Research Journal (volume 22, issue 1).
A water insoluble porphyrin 5,10,15,20-tetrakis[3,4-bis(2-ethylhexyloxy)phenyl]-21H,23H-porphine (EHO) that is highly sensitive to low concentrations of NO2 in nitrogen has been organized at the air–water interface using a host calix[8]arene (C8A) matrix. Different composition ratios of C8A have been studied at the ai…
A modular and simple approach to the graft functionalization and cross-linking of ketone-containing poly(ε-caprolactone)s has been investigated for the preparation of novel gel and nanoparticulate materials. Poly(ε-caprolactone--2-oxepane-1,5-dione) (P(CL--OPD)), was grafted by reaction with 1-aminooxydodecane and cro…
The vibrational contribution to DeltaS of the low-spin ((3)T(1)) to high-spin ((5)E) spin transition in two 3d(4) octahedral systems [Mn(III)(pyrol)(3)tren] and [Cr(depe)(2)I(2)] have been estimated by means of DFT calculations (B3LYP/CEP-31G) of the vibrational normal-modes frequencies. The obtained value at the tran…
Chromium transport from stainless steel current collectors to the cathode can be a route for rapid performance degradation in solid oxide fuel cells. Typical volatile chromium species, such as , are manageable; however, volatile species with higher vapor pressures may play a significant role in chromium transport and…
Homogeneous AgI nanoplates in diameter and in thickness can be prepared by a solution-based route using poly(diallyldimethylammonium chloride) as capping agent. The formation of unusual 7H/9R polytype modifications is the origin of the huge room temperature superionic conductivity and the large hysteresis in the phase…
Cell wall of zygomycetes fungus is an alternative source for chitosan production. In this study chitosan was extracted from cell wall of filamentous fungus Rhizopus oryzae and its antimicrobial properties was studied against three typical human pathogenic microorganisms, Escherichia coli, Klebsiella pneumoniae and Sta…
Purpose: Purpose of this paper is presentation of hydrogen degradation issue of high strength steels and especially their welded joints. Establishing of applicable mechanisms of hydrogen-enhanced cracking was the aim of performed research. Design/methodology/approach: High strength quenched and tempered steels grade S…
The significance of highway preservation and budget allocation constraints have motivated development of sensing technologies for collecting accurate and detailed traffic information. While static scales had been used widely to collect vehicle weights, Weigh-In-Motion (WIM) systems have been focused on utilizing state…
锐钛矿 TiO2 电影被 XPS ， XRD ， FE-SEM ， TEM 和紫外力的吸收成功地用 TiO2 电影 wereinvestigated 的 tetrabutyl titanate asprecursor.The 特征在泡沫镍底层bysol胶化技术上准备 spectra.Thephotocatalytic 活动 ofTiO2 电影被气体的乙醛的 photocatalytic 降级反应调查， anindoorpollutant ，在紫外光下面， irradiation.It 被发现那Ni2+做进 TiO2 filmsdue 到泡沫镍底层 resultedin 前
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A b s t r a c t Clear bubble-free phosphate glasses, having composition 40Na 2 O-10Al 2 O 3 -xTiO 2 -(50-x)P 2 O 5 , (x = 0-20 mol %), were prepared by conventional melt quench method. Density, molar volume, glass transition temperature (Tg), MicroHardness (MH), and Thermal Expansion Coefficient (TEC) were measured as…