Vapor-phase treatment of titanium dioxide with metal chlorides. 1. The reactions of coating performed by aluminum chloride (Al2Cl6), silicon chloride (SiCl4), and zirconium chloride in the vapor phase

1982 ◽  
Vol 21 (3) ◽  
pp. 496-500 ◽  
Author(s):  
E. Santacesaria ◽  
S. Carra ◽  
R. C. Pace ◽  
C. Scotti
Keyword(s):  
Titanium Dioxide ◽  
Vapor Phase ◽  
Aluminum Chloride ◽  
Metal Chlorides

Characteristics and Applications of Nanostructured Nitrides Synthesized by Vapor Phase Reactions

2005 ◽  
Vol 876 ◽  
Author(s):  
Gerald Ziegenbalg ◽  
Carsten Pätzold ◽  
Ute Ŝingliar ◽  
Rico Berthold
Keyword(s):  
Silicon Nitride ◽  
Amorphous Silicon ◽  
Vapor Phase ◽  
Elevated Temperatures ◽  
Catalyst Support ◽  
Chemical Properties ◽  
Molar Ratio ◽  
Basic Catalyst ◽  
Metal Chlorides ◽  
Amorphous Silicon Nitride

AbstractGas phase ammonolysis of volatile metal chlorides at elevated temperatures is a favorable way to produce nitride or oxynitride nanopowders. Their composition as well as the physico-chemical properties is determined by reaction temperature, molar ratio of the reactants and the residence time of the gases in the reaction zone. Both single and multi component powders can be obtained. Typical particle sizes are in the range of 50 to 350 nm. The specific surface can reach values up to 300 m2/g. Microporous analysis revealed the presence of pores with a diameter between 0.6 and 0.7 nm in amorphous silicon nitride. The powders can be used, depending on the characteristics, as catalyst or basic catalyst support. The paper gives an overview about vapor phase synthesis of single and multi component nitrides as well as the use of amorphous silicon nitride as a basic catalyst support for dehydrogenation of propane.

New Condensation Products of Rubber Hydrocarbons by the Aid of Benzyl Chloride

1932 ◽  
Vol 5 (2) ◽  
pp. 110-116
Author(s):  
F. Kirchhof
Keyword(s):  
Aluminum Chloride ◽  
Benzyl Chloride ◽  
Condensation Product ◽  
Chemical Properties ◽  
Metal Chlorides ◽  
Condensation Products ◽  
New Type ◽  
The One ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract The application of the long-known Friedel-Crafts reaction to rubber hydrocarbons led to a new type of condensation products which may be called provisionally aral cyclorubbers (“benzylidene rubbers”), since their benzylidene groups are probably condensed with the polyprene skeleton to cyclic systems. It would not have been foreseen without further work that rubber would form this type of condensation product with aral halides in the presence of aluminum chloride, since on the one hand benzyl chloride is known to form, by the action of aluminum chloride in the Friedel-Crafts reaction, an amorphous, apparently high molecular hydrocarbon of the empirical composition (C7H6)x, and on the other hand rubber in solution is transformed by the metal chlorides, especially aluminum chloride, into amorphous polycyclorubbers. Under definite conditions of condensation with aluminum chloride aral groups are combined with the skeleton of the rubber hydrocarbon with the formation of white to yellowish amorphous bodies which contain, in addition to a small proportion of organically combined chlorine, only carbon and hydrogen, and are therefore to be regarded as hydrocarbons. In their physical and chemical properties these substances resemble the already known amorphous substance of the empirical formula (C7H6)x, which doubtless is polybenzylidene, probably hexabenzylidene.

Improvement in Layer Quality of CuGaS2Grown by Vapor Phase Epitaxy with Metal Chlorides and H2S Sources

1993 ◽  
Vol 32 (S3) ◽  
pp. 145 ◽  
Author(s):  
Nozomu Tsuboi ◽  
Takehiro Isu ◽  
Yoshihide Ando ◽  
Masayuki Sawada ◽  
Seishi Iida
Keyword(s):  
Vapor Phase ◽  
Vapor Phase Epitaxy ◽  
Metal Chlorides

Vapor phase epitaxy of CuGaS2 using metal chlorides and H2S sources

1990 ◽  
Vol 99 (1-4) ◽  
pp. 752-756 ◽  
Author(s):  
A. Yamauchi ◽  
H. Saito ◽  
H. Kinito ◽  
S. Iida
Keyword(s):  
Vapor Phase ◽  
Vapor Phase Epitaxy ◽  
Metal Chlorides
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