Patent · US Expired

Solution for providing catalytically active platinum metal layers

US5624479A · kind A · utility

3Cited by

11References

1Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Juergen Boecker · Oberhausen, DE
Michael Butz · Bietigheim-Bissingen, DE
Alfred Frey · Thun, CH
Petra Hofmeister · Rottenburg am Neckar, DE
Hans-Dieter Schmidt · Wissen, DE

Key dates

Filing date	May 17, 1995
Grant date	Apr 29, 1997
Priority date	—
Expiry date	May 17, 2015

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C18/30
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A process for depositing catalytically active platinum metal layers from an ionogenic, acidic, platinum metal ions-containing solution which further contains sulfonic acid. This activation leads to more uniform catalyst layers with greater surfaces which are catalytically more efficient. The process according to the invention can be implemented in any chemical process utilizing platinum metal catalysts, e.g. chemical synthesis, environment applications or metallization of surfaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.