Cu-CeO2 nanorings with abundant oxygen vacancies for superior catalytic oxidation

Liu, Hui; Li, Chaofang; Yuan, Jing; Xiang, Kaisong; Shen, Fenghua; Yang, Weichun

doi:10.1016/j.matlet.2022.133707

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…Recently, ceria-based catalysts have been found to be promising candidates to replace noble metal catalysts [14]. Cerium oxide (CeO 2 ) has a high oxygen storage capacity and oxygen mobility for catalysis [15]. Copper oxide (CuO) has unique electrical, magnetic and catalytic properties [16].…”

Section: Introductionmentioning

confidence: 99%

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma

REN 任,

FANG 方,

ZHANG 张

et al. 2024

Plasma Sci. Technol.

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Diesel particulate matter (DPM) and hydrocarbons (HC) emitted from diesel engines negatively affect air quality and human health. Catalysts for oxidative removals of DPM and HC are currently used universally but the low removal efficiency at low temperatures is a problem. In this study, Cu-doped CeO2 loaded on Al2O3 coupled with plasma was used to enhance DPM and HC low-temperature oxidation. DPM and HC removals at 200 °C using the catalyst were as high as 90% with plasma, while below 30% without plasma. Operando plasma DRIFTS-MS was conducted to reveal the function mechanism of the oxygen species on DPM oxidation process. It was found that Cu-CeO2 can promote the formation of adsorbed oxygen (M+-O2 − ) and terminal oxygen (M=O), which can react with DPM to form carbonates that are easily converted to gaseous CO2. Our results provide a practical plasma catalysis technology to obtain simultaneous removals of DPM and HC at low temperatures.

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Section: Introductionmentioning

confidence: 99%

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma

REN 任,

FANG 方,

ZHANG 张

et al. 2024

Plasma Sci. Technol.

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Enhanced the dehydrocyclization of 1,4-butanediol to γ-butyrolactone via the regulation of interface oxygen vacancies in Cu/MgO-CeO2 catalyst

Chong,

Zhao,

et al. 2024

Chemical Engineering Journal

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Research progress on the construction of oxygen vacancy defects and application in photocatalytic oxidation of elemental mercury

Yang

Xiang

et al. 2024

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Cu-CeO2 nanorings with abundant oxygen vacancies for superior catalytic oxidation

Cited by 5 publications

References 19 publications

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma

Enhanced the dehydrocyclization of 1,4-butanediol to γ-butyrolactone via the regulation of interface oxygen vacancies in Cu/MgO-CeO2 catalyst

Research progress on the construction of oxygen vacancy defects and application in photocatalytic oxidation of elemental mercury

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Cu-CeO2 nanorings with abundant oxygen vacancies for superior catalytic oxidation

Cited by 5 publications

References 19 publications

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO2/Al2O3 coupling with dielectric barrier discharge plasma

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO2/Al2O3 coupling with dielectric barrier discharge plasma

Enhanced the dehydrocyclization of 1,4-butanediol to γ-butyrolactone via the regulation of interface oxygen vacancies in Cu/MgO-CeO2 catalyst

Research progress on the construction of oxygen vacancy defects and application in photocatalytic oxidation of elemental mercury

Contact Info

Product

Resources

About

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma

Efficient simultaneous removal of diesel particulate matter and hydrocarbons from diesel exhaust gas at low temperatures over Cu–CeO₂/Al₂O₃ coupling with dielectric barrier discharge plasma