The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1985
Filed:
Dec. 28, 1983
Applicant:
Inventors:
Herbert A Laitinen, Gainesville, FL (US);
James R Waggoner, San Diego, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 321 ; 204 29 ; 204 47 ;
Abstract
A process for coating tin oxide with platinum which comprises soaking a tin oxide substrate in a strong caustic solution to activate the substrate, washing the substrate to remove all caustic solution, immersing the washed substrate in an alkaline solution containing Pt(OH).sub.6.sup..dbd. ions applying an electric potential of +0.1 to +0.7 volt to the immersed substrate, and recovering the substrate having a coating of platinum. This process is useful in preparing active platinum-coated catalysts using very small amounts of platinum.