Doping additives

In both cases the product distribution is affected by the trapping of the first formed intermediate by the salt, but this trapping in the case of doping addition does not influence... 

The efficiency of solid-state lasers (that is the ratio of laser output power to pump power) can often be increased by energy transfer from other excited ions with which the crystal was doped additionally 0. In this way energy transfer processes can be studied... 

Many developments of AN coatings and dope additives have improved the resistance to water and moisture of high-AN, low-NG dynamites. 

The hypothesis can be tested if the catalytic activity of a metal can be modified by a controlled shift of the Fermi level of the support. With semiconducting supports such a shift is readily achieved by doping additions of cations of higher charge than that of the matrix cations produces quasi-free electrons and/or removes defect electrons and raises the Fermi level addition of lower charged cations has the opposite effect. This calls for investigation of metal catalysts on doped semiconductors as supports. 

Simple admixture of arylamines to polysilanes also serves to increase the conductivity upon iodine doping. Addition of 30 wt% of AWW. iV -tetrakisO-methylphenyl)-1,3-diaminobenzene to (PhSiMe)n increased the conductivity of this polymer to 3 x 10"4 Scm-1. 

A dependence of the product distribution on LiClO4 concentration has also been observed Q in the addition of DNBSC to tetrafluorobarrelene (117). In the absence of added LiClO4 this reaction gives the adduct 118 accompanied by a small amount of 119 (<2% yield). In the presence of LiClO4 the products are chloride 118, a mixture of the two isomeric acetates 120 and the tricyclic acetates 121 (equation 117). At high salt concentrations (0.2-0.25 M), the formation of the acetates 120 is dominant. Furthermore, a sharp non-linear increase in the content of doping-addition products at low concentrations of salt, followed by a more moderate increase at higher concentrations, has been observed Q. 

Chromium Doping. Additions of chromium compounds can be used to produce very fine metal powder grades (<0.5 pm). Chromium oxide is formed during reduction and acts as a grain refiner. Such powders are subsequently carburized to ultrafine WC. Special precautions have to be taken because of the high pyrophoricity of the metal powder. 

Dope additives have also been reported. A patent issued to the American Cyanamid Co. [446], for example, describes a process in which a fine dispersion of a polycarbonate resin is incorporated into the spinning dope. The fibers produced in this manner contain fibrils of the polycarbonate resin that have the effect of improving the fiber hot-wet elasticity. 

Liu W, Xie ZP, Liu GW, Yang XF (2011) Novel preparation of translucent alumina ceramics induced by doping additives via chemical precipitation method. J Am Ceram Soc 94 3211-3215... 

As chiral LCs can be formed by chiral mesogens or induced by chiral guest molecules, photoresponsive chiral LCs can be derived from these two systems by photosensitization. One strategy is to photosensitize the existing constituent molecules in chiral LCs, i.e. LC host or chiral dopant. The other strategy is to dope additional photoresponsive agents to the existing chiral LC systems. These two... 

Paraknowitsch JP, Zhang Y, Wienert B, Thomas A (2013) Nitrogen- and phosphorus-co-doped carbons with tunable enhanced surface areas promoted by the doping additives. Chem Commun 49 1208-1210... 

The creep resistance of silicon nitride-containing Lu-doped additives was shown to be three to five orders of magnitude greater than that of earlier grades containing Y- and / or Yb-additives [74, 75]. This material has the potential for prolonged operation at... 

Additive a-d9-tiv / (1699) adj. A supplementary material combined with a base material to provide special properties. For example, pigments are used as dope additives to give color in mass dyeing. Examples are slip additives, pigments, stabilizers, and flame retardants. Also sometimes called Modifier G Additiv n, F additif m, S aditivo m, 1 additivo m. Bart J (2005) Additives in polymers industrial analysis and applications. John Wiley and Sons, New York. 

Titanium oxide was obtained from TiCh (reaction with water and subsequent addition of ammonia solution). TajO, or NbjO, ( 5 ] were used as a doping additive... 

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