摘要:
The invention relates to a coating material having catalytic activity for reducing the combustion temperature of soot and organic substances. It also relates to the use of the coating material. In order to create a catalytically active coating material with which an abrasion-proof coating suitable also for optical applications can be produced for the combustion of soot and organic substances, it is proposed within the scope of the invention that the coating material contains at least 20 and less than 50 wt. % of compounds of subgroup metals or of elements of the third and fourth main groups, and between 10 and 80 wt. % of alkali or alkaline earth compounds, the molar proportion of alkali or alkaline earth compounds being higher than the molar proportion of compounds of subgroup metals or of elements of the third and fourth main groups. Surprisingly, the catalytic composition according to the invention permits the production of a colorless, transparent or translucent coating which also shows high abrasion resistance.
摘要:
The aim of the invention is to provide particles or coatings for splitting water, which are largely protected from corrosive damage. To this end, the particles or the coating consist(s) of a nucleus or a sub-layer and a shell or top layer, the nucleus or the sub-layer forming a reactive unit and consisting of a material which, on input of energy from sunlight, releases electrons capable of splitting water into hydrogen and oxygen, and the shell or top layer forming a protective unit capable of keeping the cleavage products away from the surface of the reactive unit and simultaneously having conductive fractions. Surprisingly, it has been found that corrosive damage to the reactive particles is (largely) prevented by the targeted separation of the reaction particles and the cleavage products over the kinetic range of the released electrons.
摘要:
A method for producing alkali and alkaline earth alloys. It also relates to the use of the alkali and alkaline earth compositions. In order to create a novel method for producing alkali and alkaline earth alloys, it is proposed within the context of the invention that salts, hydroxides, alkoxides or oxides of alkali or alkaline earth compounds be mixed with salts, hydroxides, alkoxides or oxides of semi-metals, nonmetals or metals and then heated to at least 100° C., the salts, hydroxides, alkoxides or oxides of alkali or alkaline earth metals being present in a molar ratio of 1:1 or in excess thereof in relation to the salts, hydroxide, alkoxides or oxides of the semi-metals, nonmetals or metal. Surprisingly, it was found within the context of the invention that by mixing salts, hydroxides, alkoxides or oxides of alkali or alkaline earth compounds with salts, hydroxides, alkoxides or oxides of semi-metals or metals from the 3rd or 4th main group and subsequent heating, alkali or alkaline earth alloys can be produced.
摘要:
The invention relates to a method for producing alkali and alkaline earth alloys. It also relates to the use of the alkali and alkaline earth compositions.In order to create a novel method for producing alkali and alkaline earth alloys, it is proposed within the context of the invention that salts, hydroxides, alkoxides or oxides of alkali or alkaline earth compounds be mixed with salts, hydroxides, alkoxides or oxides of semi-metals, nonmetals or metals and then heated to at least 100° C., the salts, hydroxides, alkoxides or oxides of alkali or alkaline earth metals being present in a molar ratio of 1:1 or in excess thereof in relation to the salts, hydroxide, alkoxides or oxides of the semi-metals, nonmetals or metals.Surprisingly, it was found within the context of the invention that by mixing salts, hydroxides, alkoxides or oxides of alkali or alkaline earth compounds with salts, hydroxides, alkoxides or oxides of semi-metals or metals from the 3rd or 4th main group and subsequent heating, alkali or alkaline earth alloys can be produced.