Oxygen Gateway Effect of CeO₂/La₂O₂SO₄ Composite Oxygen Storage Materials.

ABSTRACT: A synergistic enhancement in oxygen release/storage performance was achieved with composites formed between CeO₂ as an oxygen gateway and La₂O₂SO₄ as an oxygen reservoir. CeO₂ smoothly transfers oxygen atoms between La₂O₂SO₄ and the gas phase, whereas La₂O₂SO₄ stores a large amount of oxygen. The composite materials exhibited enhanced anaerobic CO oxidation and reversible oxygen storage in the presence of impregnated Pt catalysts as compared to their individual constituents (Pt/CeO₂ and Pt/La₂O₂SO₄). In situ X-ray diffraction and Raman experiments demonstrated that CeO₂ significantly accelerated the redox reaction be

SUBMITTER: Zhang D 

PROVIDER: S-EPMC6640794 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature