Title:
高分散性金属コロイドの調製方法としての金属塩の電気化学的還元ならびに金属塩の電気化学的還元による基材に固定された金属クラスター
Document Type and Number:
Japanese Patent JP4667492
Kind Code:
B2
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 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 DEG C and +120 DEG 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.
Inventors:
Manfred the rates
Wolfgang Herbig
Stephan Andreas Kvaiser
Wolfgang Herbig
Stephan Andreas Kvaiser
Application Number:
JP2008196491A
Publication Date:
April 13, 2011
Filing Date:
July 30, 2008
Export Citation:
Assignee:
Umicore AG & Co.KG
International Classes:
B01J13/00; B01J23/44; C23C18/16; B01J23/46; B01J31/26; B01J31/28; B01J31/32; B01J31/34; B01J31/36; B01J31/38; B01J35/00; B01J35/02; B01J37/16; B22F9/00; B22F9/24; C23C30/00; C25B1/00; C25C5/02
Domestic Patent References:
| JP61069905A | ||||
| JP61271026A | ||||
| JP62061630A |
Attorney, Agent or Firm:
Samejima Mutsumi
Kyousei Tamura
Genban Sanae
Fukumasa Mitsuru
Kyousei Tamura
Genban Sanae
Fukumasa Mitsuru