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Surface Plasmon Catalytic Aerobic Oxidation of Aromatic Amines in Metal/Molecule/Metal Junctions
- Source :
- The Journal of Physical Chemistry C. 120:944-955
- Publication Year :
- 2016
- Publisher :
- American Chemical Society (ACS), 2016.
-
Abstract
- The surface plasmon catalytic selective aerobic oxidation of aromatic amines to aromatic azo compounds in metal/molecule/metal junctions was explored by density functional theory. The overall reaction could be divided into the initial plasmon-induced oxygen activation and the subsequent photothermal-driven dehydrogenation process. The activation of oxygen on silver and gold surfaces is proposed through a surface plasmon-mediated hot electron injection mechanism at solid/gas interface. Resonance absorption of incident light by metal nanostructures generates energetic electron–hole pairs. Time-dependent density functional theory calculations illustrate that the excited hot electrons created on metal surfaces can transfer to the antibonding 2π* orbital of adsorbed oxygen, which facilitates the dissociation of O2 on metal surfaces. Silver shows better catalytic performance for the oxygen activation due to its stronger surface plasmon resonance absorption intensity and higher hot electron energy level. Aromati...
- Subjects :
- Inorganic chemistry
Physics::Optics
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
Photochemistry
01 natural sciences
Oxygen
Catalysis
Metal
Physics::Atomic and Molecular Clusters
Molecule
Physics::Chemical Physics
Physical and Theoretical Chemistry
Surface plasmon resonance
Surface plasmon
021001 nanoscience & nanotechnology
Antibonding molecular orbital
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
General Energy
chemistry
visual_art
visual_art.visual_art_medium
Density functional theory
0210 nano-technology
Subjects
Details
- ISSN :
- 19327455 and 19327447
- Volume :
- 120
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry C
- Accession number :
- edsair.doi...........fa3246d5210bbaf59c38ab7852764476