By a News Reporter-Staff News Editor at Science Letter -- Research findings on Nanostructures are discussed in a new report. According to news reporting out of Bahia Blanca, Argentina, by NewsRx editors, research stated, "B polymorph of titanium dioxide (TiO2(B)) appears as a metastable phase during thermal annealing of low content sodium layered titanate nanostructures obtained via the widely used hydrothermal synthesis. In addition, the computed formation energy for the TiO2(B) (0 0 1) slabs in the order of the one calculated for anatase (1 0 1) which represents one of the most stable TiO2 surfaces."
Our news journalists obtained a quote from the research from National University, "This encourages the study of this polymorph which could gain prominence in TiO2 applications at the nanoscale. In a first instance ultrathin TiO2(B) sheets, parallel to crystallographic planes (0 0 1) and (1 0 0), are investigated and compared to other well know TiO2 polymorphs, such as rutile and anatase surfaces. Then the adsorption of formic acid on (0 0 1) and (1 0 0) - less stable - TiO2(B) dry ultrathin sheets was studied as the first step for further evaluation of TiO2(B) nanostructures for dye sensitized solar cells (DSSC) applications. The results show that the monodentate through the carbonyl group configuration is the most stable for (0 0 1) sheet while bidentate dissociated configuration is the most stable for (1 0 0) sheet being the computed adsorption energies 0.51 eV and 1.49 eV, respectively."
According to the news editors, the research concluded: "The evaluated reactivity of TiO2(B) slabs is comparable with anatase and indicates that it could be a good adsorbent for common dyes used for dye sensitized solar cells purposes."
For more information on this research see: Ultrathin (001) and (100) TiO2(B) sheets: Surface reactivity and structural properties. Applied Surface Science, 2014;290():180-187. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Applied Surface Science - www.elsevier.com/wps/product/cws_home/505669)
Our news journalists report that additional information may be obtained by contacting L. Fernandez-Werner, Univ Nacl Sur, Dept. of Fis, RA-8000 Bahia Blanca, Buenos Aires, Argentina. Additional authors for this research include R. Faccio, A. Juan, H. Pardo, B. Montenegro and A.W. Mombru (see also Nanostructures).
Keywords for this news article include: Argentina, Bahia Blanca, South America, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies
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