biostudies-literatureUnknown5(9)Lee EUnburnt hydrocarbon emissions from gasoline vehicles contribute to air pollution and pose health risks, necessitating effective removal strategies. Conventional three-way catalysts (TWCs) effectively oxidize hydrocarbons to CO₂ at temperatures above 250 °C. However, the increasing adoption of turbocharged gasoline engines, which emit exhaust gases at significantly lower temperatures (∼300 °C versus ∼ 800 °C in conventional vehicles), has renewed concerns over hydrocarbon emissions. The primary challenge is the prolonged warm-up time of catalytic converters, during which TWCs remain largely ineffective. To address this, we developed a dual-function Pd/CeO₂ catalyst capable of retaining unburnt hydrocarbons through adsorption during cold start and promoting their oxidatJACS Au4570-4583https://www.ebi.ac.uk/biostudies/studies/S-EPMC12458003biostudies-literatureEffects of Pd/CeO<sub>2</sub> on the Abatement of Unburnt Hydrocarbon Emissions from Gasoline Vehicles during the Cold-Start Period.PMC12458003Kim DHBu JKim CHHwang SJung HKim YLee HChoi JYoo JSLee EfalseEffects of Pd/CeO<sub>2</sub> on the Abatement of Unburnt Hydrocarbon Emissions from Gasoline Vehicles during the Cold-Start Period.Unburnt hydrocarbon emissions from gasoline vehicles contribute to air pollution and pose health risks, necessitating effective removal strategies. Conventional three-way catalysts (TWCs) effectively oxidize hydrocarbons to CO₂ at temperatures above 250 °C. However, the increasing adoption of turbocharged gasoline engines, which emit exhaust gases at significantly lower temperatures (∼300 °C versus ∼ 800 °C in conventional vehicles), has renewed concerns over hydrocarbon emissions. The primary challenge is the prolonged warm-up time of catalytic converters, during which TWCs remain largely ineffective. To address this, we developed a dual-function Pd/CeO₂ catalyst capable of retaining unburnt hydrocarbons through adsorption during cold start and promoting their oxidat2025-01-01T00:00:00Z2025 Sep2026-06-03T20:15:29.181Z2026-05-30T03:06:51.109ZS-EPMC124580034100164210.1021/jacsau.5c00887