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A Theoretical Study of the Effect of Zr-, Nb-Doped and Vacancy-like Defects on H Desorption on MgH2 (110) Surface
(American Chemical Society, 2014-02)
DFT calculations were used to study hydrogen desorption energy in a set of pure, Nb- or Zr-doped systems, containing vacancy-like defects and a MgH2 (110) defect-free surface. The preferential location site for dopants was ...
Effect of Nb on barium titanate prepared from citrate solutions
(2002-12-01)
The influence of the addition of dopants on the microstructure development and electrical properties of BaTiO3 doped with 0.2, 0.4, 0.6, 0.8 mol% of Nb and 0.01 mol% of Mn based compounds was studied. Doped barium titanate ...
Effect of Nb on barium titanate prepared from citrate solutions
(2002-12-01)
The influence of the addition of dopants on the microstructure development and electrical properties of BaTiO3 doped with 0.2, 0.4, 0.6, 0.8 mol% of Nb and 0.01 mol% of Mn based compounds was studied. Doped barium titanate ...
The effect of Nb doping on ferroelectric properties of PZT thin films prepared from polymeric precursors
(Elsevier B.V., 2004-11-15)
Pure and Nb doped PbZr0.4Ti0.603 thin films was prepared by the polymeric precursor method and deposited by spin coating on Pt/Ti/SiO2/Si (100) substrates and annealed at 700 degreesC. The films are oriented in (1 1 0) and ...
The effect of Nb doping on ferroelectric properties of PZT thin films prepared from polymeric precursors
(Elsevier B.V., 2004-11-15)
Pure and Nb doped PbZr0.4Ti0.603 thin films was prepared by the polymeric precursor method and deposited by spin coating on Pt/Ti/SiO2/Si (100) substrates and annealed at 700 degreesC. The films are oriented in (1 1 0) and ...
Self-doping of Nb2O5NC by cathodic polarization for enhanced conductivity properties and photoelectrocatalytic performance
(2021-06-01)
A simple novel electrochemical reduction approach was developed for the self-doping of Nb4+ in niobium oxide nanochannels (Nb2O5NC), changing the conductivity, optical properties, and photocatalytic properties of the ...
Nb-Doped TiO2 Photocatalysts Used to Reduction of CO2 to Methanol
(2018-01-01)
In pursuit of higher photoactivity, Nb-doped TiO2 powders were evaluated in the reduction of CO2. The replacement of Ti by Nb in the crystalline structure of TiO2 promoted methanol formation. Nb-doped TiO2 powders were ...
Size effect on structure and dielectric properties of Nb-doped barium titanate
(Elsevier B.V., 2003-12-20)
It is known that the dielectric properties of BaTiO3 (BT) are strongly dependent on its grain size. Coarse-grained ceramics of pure BT showed lower dielectric constant at room temperature then fine grained. Many authors ...