Evidence for Vacancy Creation by Chromium Doping of Rutile Titanium Dioxide (110)
نویسندگان
چکیده
منابع مشابه
Hydrogen Reduced Rutile Titanium Dioxide Photocatalyst
For TiO2 photocatalysts, recombination of photoexcited electrons and holes would occur in crystalline defects such as oxygen vacancies, Ti ions, and surface states. Therefore, it is believed that the density of crystalline defects should be decreased to improve the photocatalytic activity of TiO2 particles. Contrary to this common knowledge, the introduction of crystalline defects by hydrogen r...
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T dioxide (TiO2), due to its excellent solid-state physical-chemical properties, has demonstrated a wide range of applications in hydrogen production, lithium-ion batteries, fuel cells, gas sensors, detoxification, photovoltaics, photocatalysts, and supercapacitors. The one-dimensional (1D) morphology, such as a TiO2 nanowire (NW), is considered as a superior candidate for achieving higher perf...
متن کاملThe effects of antimony doping on the surface structure of rutile TiO2(110).
Titanium dioxide represents a very important wide bandgap photocatalyst that is known to be sensitized to visible light by transition metal doping. Antimony doping has been demonstrated to provide photocatalytic activity when codoped with chromium at an optimum dopant ratio [Sb]/[Cr] of about 1.5. Here, the role of antimony doping on the surface structure of rutile TiO(2)(110) is studied using ...
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Pulsed chemical vapor deposition was used to prepare epitaxial ruthenium dioxide (RuO2) film on rutile TiO2 (011) at low temperature 280 °C. Reciprocal space mapping by high-resolution X-ray diffraction was used to examine the quality of epitaxy, which demonstrated a high quality epitaxy of the deposited RuO2 film. The results also showed that the RuO2 lattice was fully strained by the substrat...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2009
ISSN: 1932-7447,1932-7455
DOI: 10.1021/jp8095677