A newly developed catalyst from Japan, CeO2/MnFeOy, has both fast release and large storage capabilities for oxygen. Its high performance in the converting rate of NOx, CO, and total hydrocarbon to less harmful materials was comparable to a reference catalyst despite using 30 percent less of the rare earth element, Ce.
Adapted with permission from Machida, M.; Ueno, M.; Omura, T.; Kurusu, S.; Hinokuma, S.; Nanba, T.; Shinozaki, O. & Furutani, H., CeO2-Grafted Mn-Fe Oxide Composites as Alternative Oxygen-Storage Materials for Three-Way Catalysts: Laboratory and Chassis Dynamometer Tests, Industrial & Engineering Chemistry Research, American Chemical Society (ACS), 2017, 56, 3184-3193. DOI: 10.1021/acs.iecr.6b04468. Copyright 2017 American Chemical Society.