Oxygen Defects and Surface Chemistry of Reducible Oxides

@article{Pinto2019OxygenDA,
  title={Oxygen Defects and Surface Chemistry of Reducible Oxides},
  author={Felipe M. Pinto and Victor Yuudi Suzuki and R. Chagas e Silva and Felipe de Almeida La Porta},
  journal={Frontiers in Materials},
  year={2019}
}
The magic reducible oxides properties likely are mainly due to the presence of oxygen defects and their rich surface chemistry, which provide a rational pathway to the emergent of entirely new properties. Although significant progress has performed in the last years, nevertheless, it can be stated that they are not fully understood at the nanoscale level so far. This review provides a comprehensive perspective on the oxygen defects and surface chemistry of reducible oxides based on two… 
The Impact of the Surface Modification on Tin-Doped Indium Oxide Nanocomposite Properties
TLDR
An analysis of the theoretical methods to study the effects of surface modification on structural properties of nanostructured indium tin oxide (ITO) shows that the change in optoelectronic properties of the surface is mainly due to functionalizing the surface with organic molecules and that the electrocatalytic properties vary as a function of size.
Influence of the Support on Propene Oxidation over Gold Catalysts
The epoxidation of propene without forming a substantial amount of byproducts is one of the holy grails of catalysis. Supported Cu, Ag and Au catalysts are studied for this reaction and the activity
Surface Coordination Chemistry of Atomically Dispersed Metal Catalysts.
TLDR
This review will illustrate how the local and vicinal coordination species on different support systems act together with the dispersed catalytic metal center to determine the catalytic activity, selectivity, and stability of ADCs.
Ceria-Based Catalysts for Selective Hydrogenation Reactions: A Critical Review
The catalytic behaviour of ceria (cerium (IV) Oxide; CeO 2 ) incorporated with trace metals, metallic particles or mixed support systems has been studied extensively for various heterogeneous
Complexity of the Nano-Bio Interface and the Tortuous Path of Metal Oxides in Biological Systems
TLDR
Understanding the evolving pharmacology of metal oxide NPs as they interact with biological systems is critical to establish translational test systems that effectively predict future theranostic activity.
Cataluminescence in Er‐Substituted Perovskites
TLDR
Cataluminescence takes place under oxidizing conditions (lean fuel to air mixture) on the Er‐perovskite oxide with a strong selective near infrared emission, while reducing conditions stimulate formation of plasmonic Cu‐nanoparticles, which emit black body radiation.
...
1
2
3
...

References

SHOWING 1-10 OF 114 REFERENCES
Molybdenum Oxides – From Fundamentals to Functionality
TLDR
The properties and applications of molybdenum oxides are reviewed in depth, while an insightful outlook into future prospective applications for moly bdenum oxide is presented.
Nanostructured ceria-based materials: synthesis, properties, and applications
The controllable synthesis of nanostructured CeO2-based materials is an imperative issue for environment- and energy-related applications. In this review, we present the recent technological and
Imaging oxygen defects and their motion at a manganite surface.
TLDR
This work reports the first atomic resolution images of oxygen defects at a manganite surface, and resolves the long-standing puzzle of why STM is more challenging for layered manganites than for cuprates.
Support nanostructure boosts oxygen transfer to catalytically active platinum nanoparticles.
TLDR
This study identifies two types of oxidative metal-oxide interaction on well-defined models of technologically important Pt-ceria catalysts and details the formation mechanism of the catalytically indispensable Pt-O species on ceria to elucidate the extraordinary structure-activity dependence of ceria-based catalysts in general.
Atomic structures and oxygen dynamics of CeO2 grain boundaries
TLDR
Direct atomic scale evidence is reported that oxygen vacancies formed in the GBs can modify the local surface oxygen dynamics in CeO2, a key material for fuel cells, and provides critical understanding of GB properties down to atomic scale.
2D oxides on metal materials: concepts, status, and perspectives.
TLDR
The field of ultrathin films of oxides grown on metal surfaces is reviewed and an overview of the most promising future directions with a focus on their potential toward and relationships with real-world exploitation is provided.
Insights into the Surface-Defect Dependence of Photoreactivity over CeO2 Nanocrystals with Well-Defined Crystal Facets
Crystal facet engineering (CFE) has been widely employed to regulate the photoreactivity of crystalline materials, mostly concerning the surface atomic and electronic structures. However, surface
Electron Localization Determines Defect Formation on Ceria Substrates
TLDR
High-resolution scanning tunneling microscopy and density functional calculations are used to unravel the local structure of surface and subsurface oxygen vacancies on the ceria surface and have implications for the understanding of oxidation processes on reducible rare-earth oxides.
...
1
2
3
4
5
...