Synthesis and Characterization of K(2)Ln(2/3)Ta(2)O(7)center dot nH(2)O (Ln= La, Pr, Nd), Layered Tantalates Photocatalysts for Water Splitting
Por:
ValenciaSanchez, H, Pfeiffer, H, Acosta, D, NegronMendoza, A, Tavizon, G
Publicada:
1 abr 2015
Categoría:
Chemistry (miscellaneous)
Resumen:
Three compounds of the K(2)Ln(2/3)Ta(2)O(7) (Ln = La, Nd, Pr)
cation-deficient Ruddlesden-Popper series were prepared by the Pechini
(polymeric complex) method. The crystal structures of the hydrated form
of these compounds were determined by Rietveld analysis of the X-ray
powder diffraction data and High Resolution Transmission Electron
Microscopy (HRTEM). The samples were also analyzed to determine specific
area (BET), degree of hydration (TGA), and photocatalytic activity for
hydrogen evolution from water and aqueous methanol solution.
Filiaciones:
ValenciaSanchez, H:
Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico
Univ Tecnol Pereira, Escuela Quim, Los Alamos 660003, Pereira, Colombia
Pfeiffer, H:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
Acosta, D:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico
NegronMendoza, A:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico
Tavizon, G:
Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico
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