Novel catalytic properties of quadruple perovskites
نویسندگان
چکیده
منابع مشابه
Novel catalytic properties of quadruple perovskites
Quadruple perovskite oxides AA'3B4O12 demonstrate a rich variety of structural and electronic properties. A large number of constituent elements for A/A'/B-site cations can be introduced using the ultra-high-pressure synthesis method. Development of novel functional materials consisting of earth-abundant elements plays a crucial role in current materials science. In this paper, functional prope...
متن کاملStructural, Magnetic and Catalytic Properties of Non-Stoichiometric Lanthanum Ferrite Nano-Perovskites in Carbon Monoxide Oxidation
Perovskite-type oxides of LaFe(1+x)O(3+δ) (x = 0.0, 0.2, 0.5 and 0.7) were synthesized by citrate sol–gel methodto ensure the formation of nanosized perovskites. The physicochemical properties of these LaFe(1+x)O(3+δ)materials were characterized by thermal gravimetric/differential analyses, Fourier transform infraredspectroscopy, X-ray powder diffraction, scanning electron and...
متن کاملMagnetic Properties of Cuprate Perovskites
The magnetic susceptibility of underdoped yttrium and lanthanum cuprates is interpreted based on the self-consistent solution of the t-J model of a Cu-O plane. The calculations reproduce correctly the frequency dependencies of the susceptibility in YBa2Cu3O7−y and La2−xSrxCuO4 attributing their dissimilarity to the difference in the damping of spin excitations. In YBa2Cu3O7−y these excitations ...
متن کاملEvaluation of LaBO3 (B=Mn, Cr, Mn0.5Cr0.5) perovskites in catalytic oxidation of trichloroethylene
In this study, La–Mn–Cr perovskite-type catalysts were synthesized as LaMnO3,LaCrO3, and LaMn0.5Cr0.5O3 by a microwave-assisted gel-combustion method. They were then calcined at 600oC for 5h in a...
متن کاملQuadruple perovskites L'L"Ba2Cu2Ti2O11 as good candidates for high-temperature superconductors: Role of oxygen defects.
The electronic structure and properties of LaYBa2Cu2Ti2O11 , as a typical member of the L8L9Ba2Cu2Ti2O11 family, were determined by means of the full-potential linear muffin-tin method. From the results obtained it appears that L8L9Ba2Cu2Ti2O11 may be a good candidate for high-Tc superconductivity since its band structure at the Fermi energy is dominated by a quasi-two-dimensional Cu-O dps band...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science and Technology of Advanced Materials
سال: 2017
ISSN: 1468-6996,1878-5514
DOI: 10.1080/14686996.2017.1350557