Length Enhancing the low-temperature CO oxidation over Pt/Y2O3 catalyst: The effects of Pt dispersion and support basicity on the catalytic performance

Article Multidisciplinary Sciences

Catalytically efficient Ni-NiOx-Y2O3 interface for medium temperature water-gas shift reaction

Kai Xu et al.

Summary: This study designs a composite Ni-Y2O3 catalyst with abundant active interfaces, achieving the highest activity among Ni-based catalysts and providing a practical route to replace the existing water gas shift process.

NATURE COMMUNICATIONS (2022)

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Article Multidisciplinary Sciences

Functional CeOx nanoglues for robust atomically dispersed catalysts

Xu Li et al.

Summary: Single-atom catalysts make efficient use of noble metals but suffer from limited stability. This study presents a strategy of confining atomically dispersed metals on oxide nanoclusters, which are immobilized on a high-surface-area support, to enhance stability. The resulting catalyst exhibits improved performance in CO oxidation under both oxidizing and reducing environments at high temperatures.

NATURE (2022)

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Article Chemistry, Applied

Reversible transformation between terrace and step sites of Pt nanoparticles on titanium under CO and O2 environments

Yang Ou et al.

Summary: Understanding the dynamic evolution of active sites of supported metal catalysts during catalysis is crucial for improving its performance. In this study, the transformation between surface terrace and step sites of Pt-TiO2 catalysts under CO and O-2 environments was investigated using in situ transmission electron microscopy and in situ Fourier transform infrared spectroscopy. The results showed that the conversion between terrace sites and step sites was reversible, and gas treatments could enhance the catalytic activity of Pt-TiO2 catalysts by tuning the surface-active sites.

CHINESE JOURNAL OF CATALYSIS (2022)

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Article Chemistry, Applied

LaOx(OH)y supported platinum catalysts for CO oxidation: Deactivation by formation of lanthanum carbonate

Luozhen Jiang et al.

Summary: Platinum catalyst deposited on lanthanum oxide or hydroxide supports showed poor stability for CO oxidation, with oxidized PtOx atoms or PtxOy clusters identified as the active species for the reaction and the formation of lanthanum carbonate as the deactivation origin.

JOURNAL OF RARE EARTHS (2021)

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Article Chemistry, Physical

Highly Dispersed Ruthenium Nanoparticles on Y2O3 as Superior Catalyst for Ammonia Decomposition

Ji Feng et al.

Summary: Yttrium oxide (Y2O3) has been found to disperse and stabilize ruthenium (Ru) nanoparticles, and the prepared Ru/Y2O3 catalyst exhibits excellent NH3 decomposition activity and stability, achieving nearly complete NH3 conversion at relatively high temperature.

CHEMCATCHEM (2021)

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Article Chemistry, Physical

Oxidative coupling of methane over Y2O3 and Sr-Y2O3 nanorods

Yuqiao Fan et al.

Summary: Y2O3 nanorods were prepared by a hydrothermal method, with Sr-modified Y2O3 nanorods synthesized by an impregnation method. The addition of a small amount of Sr to Y2O3 nanorods enhances the activation of oxygen and the amount of moderate basic sites, improving the oxidative coupling of methane performance. The study found that the C2-C3 yield achieved on the Y2O3-based catalysts correlated well with the amount of moderate basic sites present on the catalysts.

REACTION KINETICS MECHANISMS AND CATALYSIS (2021)

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Article Multidisciplinary Sciences

In situ manipulation of the active Au-TiO2 interface with atomic precision during CO oxidation

Wentao Yuan et al.

Summary: The interface between metal catalyst and support is critical in heterogeneous catalysis. The study found that the atomic structure of the Au-TiO2 interface depends on the epitaxial rotation of gold nanoparticles on a TiO2 surface during CO oxidation. Manipulation of the active Au-TiO2 interface was achieved in situ by changing gas and temperature, suggesting real-time design of catalytic interface in operating conditions may be possible.

SCIENCE (2021)

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Review Environmental Sciences

Catalytic oxidation of CO on noble metal-based catalysts

Chenglin Feng et al.

Summary: This article reviews recent research on the application of noble metal catalysts in the catalytic oxidation of CO, summarizing the effects of catalyst support, dopant, and physicochemical properties on the catalytic activity for CO oxidation. It emphatically discusses the influence of water vapor and sulfur dioxide on the catalytic activity in CO oxidation and presents several reaction mechanisms of CO catalytic oxidation on noble metal catalysts. Finally, the challenges of removing CO by catalytic oxidation in practical industrial flue gas are proposed.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

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Article Chemistry, Physical

CO2 Methanation Using Multimodal Ni/SiO2 Catalysts: Effect of Support Modification by MgO, CeO2, and La2O3

Maria Mihet et al.

Summary: Ni/oxide-SiO2 catalyst samples were prepared with Ni, MgO, CeO2, and La2O3 as supplementary oxides. Catalysts were characterized and functionally evaluated, with Ni/LaSi showing the best catalytic activity in CO2 methanation reaction.

CATALYSTS (2021)

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Article Multidisciplinary Sciences

Unique structure of active platinum-bismuth site for oxidation of carbon monoxide

Bing Nan et al.

Summary: By adding bismuth as a dopant to form platinum-bismuth clusters on silica, researchers have discovered a highly active catalyst for CO oxidation at low temperatures. The catalyst exhibited a high CO2 production rate and demonstrated surface Pt-O-Bi structure as the active site for CO oxidation via electron transformation between platinum atoms and carbon monoxide. These findings provide a unique and general approach for designing potential excellent performance catalysts for redox reactions.

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Article Chemistry, Physical

CO oxidation over Pt/Cr1.3Fe0.7O3 catalysts: Enhanced activity on single Pt atom by H2O promotion

Ting Wang et al.

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Effects of Hydrogen and Hydrothermal Pretreatments on a Silica-Supported Copper Catalyst for CO Oxidation: Copper Hydroxy Active Species

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Supported Mn catalysts and the role of different supports in the catalytic oxidation of carbon monoxide

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Getting Insights into the Temperature-Specific Active Sites on Platinum Nanoparticles for CO Oxidation: A Combined in Situ Spectroscopic and ab Initio Density Functional Theory Study

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Unravelling the Different Reaction Pathways for Low Temperature CO Oxidation on Pt/CeO2 and Pt/Al2O3 by Spatially Resolved Structure-Activity Correlations

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Improved stability of Y2O3 supported Ni catalysts for CO2 methanation by precursor-determined metal-support interaction

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Influence of the Defect Concentration of Ceria on the Pt Dispersion and the CO Oxidation Activity of Pt/CeO2

Jaeha Lee et al.

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Water-Mediated Mars-Van Krevelen Mechanism for CO Oxidation on Ceria-Supported Single-Atom Pt1 Catalyst

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Effects of Multiple Platinum Species on Catalytic Reactivity Distinguished by Electron Microscopy and X-ray Absorption Spectroscopy Techniques

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Activation of surface lattice oxygen in single-atom Pt/Ce02 for low-temperature CO oxidation

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Promoting Effects of Hydrothermal Treatment on the Activity and Durability of Pd/CeO2 Catalysts for CO Oxidation

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Effect of Pt Particle Size and Valence State on the Performance of Pt/TiO2 Catalysts for CO Oxidation at Room Temperature

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Length Enhancing the low-temperature CO oxidation over Pt/Y2O3 catalyst: The effects of Pt dispersion and support basicity on the catalytic performance

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