Results 261 to 270 of about 792,031 (309)

Stabilization of zirconium oxide in aluminum oxide-zirconium oxide system by complex stabilizers

Journal of Engineering Physics and Thermophysics, 1996
Special features of stabilization of zirconium oxide in the aluminum oxide-zirconium oxide system using stabilizers of the yttrium oxide-magnesium oxide system are studied. Optimum regimes for dispersion of the initial components and for final sintering are determined.
V. M. Shelekhina, M. A. Isupov
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Nanoparticulate copper – routes towards oxidative stability

Dalton Transactions, 2010
A modified polyol-based reduction method in ethylene glycol that incorporates poly(N-vinylpyrrolidone) (PVP, M(av) = 10,000; 40,000; 55,000) as polymeric anti-agglomerant alongside a reducing additive (N(2)H(4) x H(2)O, NaBH(4), NaH(2)PO(2) x H(2)O) has been employed to investigate the influence of synthetic parameters on the purity, morphology and ...
Engels, V., Benaskar, F., Jefferson, D.A., Johnson, B.F.G., Wheatley, A.E.H.   +4 more
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Layered‐Carbon‐Stabilized Iron Oxide Nanostructures as Oxidation Catalysts

Angewandte Chemie International Edition, 2011
[gao, yongjun; ma, ding; zhai, peng] peking univ, coll chem & mol engn, beijing natl lab mol sci, beijing 100871, peoples r china. [gao, yongjun; bao, xinhe] chinese acad sci, dalian inst chem phys, state key lab catalysis, dalian 116023, peoples r china. [hu, gang] exponent inc, hangzhou 310053, zhejiang, peoples r china. [zhu, bo; zhang, bingsen; su,
Gao, Y., Ma, D., Hu, G., Zhai, P., Bao, X., Zhu, B., Zhang, B., Su, D.   +7 more
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Oxidative Stability of Fullerenes

The Journal of Physical Chemistry, 1994
Mixtures of fullerenes are more susceptible to oxidation than the pure phases of fullerenes. For example, a mixture of 90 wt % C[sub 60]/10 wt % C[sub 70] reacts with air at 300[degree]C for 24 h to yield a product containing 95% of the initial mass but which manifests an atomic ratio of carbon to oxygen of 2.3; in contrast, there is [le]1 wt % loss ...
Joseph C. Scanlon, James M. Brown, Lawrence B. Ebert   +2 more
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Oxidative stability of polyaniline

Polymer Degradation and Stability, 2012
Abstract Standard globular and nanotubular polyaniline were exposed to strong oxidants, such as hydrogen peroxide or ammonium peroxydisulfate, in acidic, neutral, and alkaline aqueous media for 10 or 60 days. Even in the mixture of 30% hydrogen peroxide and concentrated sulfuric acid, polyaniline was not completely destroyed and left >30 wt.% residue.
Jaroslav Stejskal, Milena Exnerová, Zuzana Morávková, Miroslava Trchová, Jiřina Hromádková, Jan Prokeš   +5 more
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Oxidative stability of DHA phenolic ester

Food Chemistry, 2015
Docosahexaenoic acid vanillyl ester (DHA-VE) was synthesized from docosahexaenoic acid ethyl ester (DHA-EE) and vanillyl alcohol by a solvent-free alcoholysis process catalysed by Candida antarctica lipase B. Oxidative stability of pure DHA-VE and the crude reaction medium consisting of 45% DHA-VE and 55% DHA-EE were compared with that of DHA-EE under ...
Mohamed H H, Roby, Vanessa C, De Castro, Brenda N, Targino, Paulo H, Alves Da Silva, Cécile, Mangavel, Françoise, Chretien, Catherine, Humeau, Stephane, Desobry   +7 more
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Trends in Stability of Perovskite Oxides

Angewandte Chemie International Edition, 2010
Perovskite oxides with general formula AMO3 have a large variety of applications as dielectrics and piezoelectrics, ferroelectrics and/or ferromagnetic materials, among others. Rare earth and alkaline earth metal perovskites are useful as catalysts for hydrogen generation, as oxidation catalysts for hydrocarbons, and as effective and inexpensive ...
Federico, Calle-Vallejo, José I, Martínez, Juan M, García-Lastra, Mogens, Mogensen, Jan, Rossmeisl   +4 more
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Stability of Procaine in Deuterium Oxide

Journal of Pharmaceutical Sciences, 1964
Stability of procaine in protium oxide and deuterium oxide was studied over the pH and "apparent" pH range 8 to 11. Studies were conducted at 40 and 100°.
F P, SIEGEL, F D, HITER, S V, SUSINA, M I, BLAKE   +3 more
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Stabilization of Silicon–Carbon Mixed Oxides

Journal of the American Chemical Society, 2015
The first carbene-stabilized silicon-carbon mixed oxide, (SiO2)2CO2 (4), was synthesized by CO2 oxidation of either carbene-stabilized disilicon, L:Si═Si:L (L: = :C{N(2,6-Pr(i)2C6H3)CH}2) (1), or carbene-stabilized Si2O3 (2) (which can be obtained via N2O oxidation of 1).
Yuzhong, Wang, Mingwei, Chen, Yaoming, Xie, Pingrong, Wei, Henry F, Schaefer, Gregory H, Robinson   +5 more
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Oxidative Stability of Conjugated Linolenic Acids

Journal of Agricultural and Food Chemistry, 2009
Interest in conjugated linolenic acid (CLnA) and conjugated linoleic acid (CLA) as functional lipids is growing. The present study was (i) to study the oxidative stability of individual CLnA isomers and (ii) to compare the oxidative stabilities of CLnA and CLA with their corresponding nonconjugated counterparts, α-linolenic acid (LN) and linoleic acid (
Lin, Yang, Ying, Cao, Jing-Nan, Chen, Zhen-Yu, Chen   +3 more
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