Electrochemical reduction of metal salts as a method of preparin

Details Electrochemical reduction of metal salts as a method of preparin Electrochemical reduction of metal salts as a method of preparin

1995-03-09

1997-04-15

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

205464, 205574, 205587, 205597, 205602, 205610, C25C 100, C25C 112, C25C 106, C25C 114

Patent

active

056205848

ABSTRACT:
The object of the invention is a method for the electrochemical preparation of metal colloids with particle sizes of less than 30 nm, characterized in that one or more salts of one or more metals of groups Ib, IIb, III, IV, V, VI, VIIb, VIII, lanthanoides, and/or actinoides of the periodic table are cathodically reduced in the presence of a stabilizer, optionally with a supporting electrolyte being added, in organic solvents or in solvent mixtures of organic solvents and/or water within a temperature range of between -78.degree. C. and +120.degree. C. to form metal colloidal solutions or redispersible metal colloid powders, optionally in the presence of inert substrates and/or soluble metal salts of the respective metals. The invention further relates to soluble or redispersible colloids as well as application on substrates and immobilization thereof, in particular for the preparation of catalysts.

REFERENCES:
Lisichkin et al., "Ashes of Metals", Khim. Shk., (1), pp. 81-82. 1975.
Grant et al., Grant & Hackh's Chemical Dictionary, 5th ed., p. 145 1987.
Chemical Abstracts, vol. 77, No. 2, abstract No. 13054, (1972). No Month Available.
Chemical Abstracts, vol. 98, No. 18, abstract No. 151794, (1982). No Month Available.

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