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The structure of CoSAPO-34, containing i-propylamine as a template
(Butterworth-Heinemann, 1991)
The crystal structure of a cobalt silicoaluminophosphate, CoSAPO-34, is reported. The crystals belong to the rhombohedral R3 space group with unit cell parameters a = 13.797(7) and c = 14.898(7) A. The final R index was ...
A Kinetic Study of the System Phthalocyanine-Copper(II) Chloride-Sulfuric Acid
(Elsevier, 1990)
In solutions of phthalocyanine, H2Pc, (c = 1–3 × 10−5 mol dm−3) and copper(II) chloride (c ≈ 10−3 mol dm−3) in sulfuric acid (c = 16–18 mol dm−3), two pseudo first-order reactions take place: (1) decomposition of H2Pc; (2) ...
Preparation and Properties of Sodalite-Type Aluminophosphates Containing Silicon, Cobalt and Zinc
(CSIRO PUBLISHING, 1991)
The SAPO, MeAPO and MeSAPO microporous materials (Me=Co2+ and/or 2n2+) having a sodalite structure have been obtained hydrothermally at 200°C in the presence of tetramethylammonium ion as the template. The SAPO and MeSAPO ...
On the possibility of incorporating Mn(II) and Cr(III) in SAPO-34 in the presence of isopropylamine as a template
(Butterworth-Heinemann, 1993)
Hydrothermal synthesis of SAPO materials using isopropylamine (i-PrNH2) as the template leads to the formation of MnAPSO-34 if Mn(II) is present. In the presence of Cr(III), the synthesis yields SAPO-34 containing ...
Temperature-programmed desorption mass spectrometric study of the surface properties of glassy carbon
(Wiley, Hoboken, 1996)
The temperature-programmed desorption (TPD) method combined with mass spectrometric analysis has been applied to the characterization of glassy carbon (GC) and modified glassy carbon surfaces. Five different samples of GC ...
Nonlinear optical effects in asymmetric AlGaAs/GaAs semiconductor quantum wells
(Trans Tech-Scitec Publications Ltd, Durnten-Zurich, 1998)
Optical nonlinearities in three-level asymmetric semiconductor quantum wells (QW) are analyzed (optical rectification, second harmonic generation (SHG)). The influence of permanent dipole moments on SHG conversion efficiency ...
A novel open framework zincophosphate: Synthesis and characterization
(Elsevier Science Inc., 1995)
The crystallization of a reactive zincophosphate gel (which may contain Co(ll) component) in the presence of sodium cations at ambient temperature and pressure yielded products (abbreviated ZnPO-HEX or CoZnPO-HEX) with a ...
Conformations of unsymmetrical N-t-butyl-N-substituted 2-phenylacetamides
(Elsevier B.V., 1997)
Various N-t-butyl-N-substituted 2-phenylacetamides, PhCH2CON(t-Bu)R, wherein R is methyl, ethyl, n-propyl, n-butyl, i-propyl, phenyl and cyclohexyl, were synthesized, Depending on the kind of substituent on the nitrogen ...
Thermal shock behavior of alumina based refractories: fracture resistance parameters and water quench test
(Elsevier, Amsterdam, 1999)
The prediction of refractories thermal shock behavior can be estimated on two basis: heat transfer conditions and/or fracture mechanics concept. Materials considered in our analysis were alumina based refractories with ...
Phase transfer ethylation of N-substituted amides of phenylacetic acid
(Mezhdunarodnaya Kniga, Moscow, 1998)