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Characterization of three-way automotive catalysts

Technical Report ·
DOI:https://doi.org/10.2172/105121· OSTI ID:105121
;  [1];  [2]
  1. Oak Ridge National Laboratory, TN (United States)
  2. General Motors-AC Delco Systems, Flint, MI (United States); and others
This has been the second year of a CRADA between General Motors - AC Delco Systems (GM-ACDS) and Martin Marietta Energy Systems (MMES) aimed at improved performance/lifetime of platinum-rhodium based three-way-catalysts (TWC) for automotive emission control systems. While current formulations meet existing emission standards, higher than optimum Pt-Rh loadings are often required. In additionk, more stringent emission standards have been imposed for the near future, demanding improved performance and service life from these catalysts. Understanding the changes of TWC conversion efficiency with ageing is a critical need in improving these catalysts.
Research Organization:
Oak Ridge National Lab., TN (United States)
OSTI ID:
105121
Report Number(s):
ORNL/TM--12963; ON: DE95016129
Country of Publication:
United States
Language:
English