| 简介 |
FIELD : chemistry.
SUBSTANCE : invention relates to materials with composite particles on a substrate. Described is material with composite particles on a substrate, containing : composite particles, which are formed from oxidised nickel and X, where X denotes at least one of elements selected from a group consisting of palladium, platinum, ruthenium, gold, silver and copper; and a substrate on which composite particles are deposited, where the material with composite particles on a substrate has a layer on which composite particles are localised. Described is a method of producing said material, in which composite particles formed from oxidised nickel and X, where X is an element given above, are deposited on a substrate, comprising : a first step where a mixture is obtained at temperature of at least 60°C by mixing an aqueous suspension, having a substrate on which an oxide of at least one basic metal is deposited, said metal selected from a group consisting of alkali metal, alkali-earth metals and rare-earth metals, and acidic aqueous solution of a soluble metal salt containing nickel and X, and a second step for thermal treatment of a precursor contained in said mixture. Described is a method of producing a carboxylic ester, where : an aldehyde and an alcohol react in the presence of oxygen using material containing the described composite particles on a substrate as a catalyst.
EFFECT : obtaining material with composite particles on a substrate, which has catalytic activity in carboxylic ester synthesis reactions.
16 cl, 1 tbl, 4 dwg, 11 ex |
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