Size and Structure Matter: Enhanced CO2 Photoreduction Efficiency by Size-resolved Ultrafine Pt Nanoparticles on TiO2 Single Crystals.
Summary of "Size and Structure Matter: Enhanced CO2 Photoreduction Efficiency by Size-resolved Ultrafine Pt Nanoparticles on TiO2 Single Crystals."
A facile development of highly efficient Pt-TiO2 nanostructured films via versatile gas phase deposition methods is described. The films have a unique one-dimensional (1D) structure of TiO2 single crystals coated with ultrafine Pt nanoparticles (NPs, 0.5-2 nm) and exhibit extremely high CO2 photoreduction efficiency with selective formation of methane (the maximum CH4 yield of 1361 µmol/g-cat/hr). The fast electron transfer rate in TiO2 single crystals and the efficient electron-hole separation by the Pt NPs were the main reasons attributa-ble for the enhancement, where the size of the Pt NPs and the unique 1D structure of TiO2 single crystals played an important role.
Affiliation
Journal Details
This article was published in the following journal.
Name: Journal of the American Chemical Society
ISSN: 1520-5126
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22694165
- DOI: http://dx.doi.org/10.1021/ja304075b
Medical and Biotech [MESH] Definitions
Particle Size
Relating to the size of solids.
Health Facility Size
The physical space or dimensions of a facility. Size may be indicated by bed capacity.
Growth And Development
The series of changes to the shape, size, components, and functions of an individual organism that occur over time as the organism progresses from its initial form to full size and maturity.
Sample Size
The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)
Structure-activity Relationship
The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups.
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