Patent · US Expired

Method for in situ immobilization of water-soluble nanodispersed metal oxide colloids

US7244688B2 · kind B2 · utility

8Cited by

19References

24Claims

0Family size

Assignee

Studiengesellschaft Kohle gGmbH · DE

Inventors

Manfred T. Reetz · Mülheim an der Ruhr, DE
Marco Lopez · Frankfurt, DE

Key dates

Filing date	Feb 25, 2003
Grant date	Jul 17, 2007
Priority date	—
Expiry date	May 9, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to heterogeneous catalysts which are particularly easy to produce. Said heterogeneous catalysts are generated by immobilizing preformed monometallic or multimetallic metal oxide particles in situ on an oxidic or non-oxidic carrier, wherefore metal oxide colloids which are stabilized by hydroxide ions and immobilized on carriers contained in the suspension are generated from conventional, water-soluble metal salts by means of hydrolysis and condensation. The inventive method makes it possible to produce fuel cell catalysts, for example.

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