Zobrazeno 1 - 10
of 13
pro vyhledávání: '"J. Katana Ngala"'
Autor:
Arthur Dobley, Steven L. Suib, J. Katana Ngala, and Vincent Mark B. Crisostomo, Shaun M. Alia
Publikováno v:
Chemistry of Materials. 19:229-234
The material H[H0.18Li0.15Mn0.67]O1.90, obtained by the delithiation of layered Li2MnO3 using acid, gives a 2-fold increase in oxygen reduction ability versus Li2MnO3. Using elemental analysis by the ICP technique, average oxidation state determinati
Publikováno v:
Physical Review B. 75
Magnetic properties of the first hollandite-type vanadium oxide containing anions in the $2\ifmmode\times\else\texttimes\fi{}2$ channels, ${\mathrm{V}}_{7.22}{\mathrm{O}}_{8}{(\mathrm{O}\mathrm{H})}_{8}{(\mathrm{Cl})}_{0.77}{({\mathrm{H}}_{3}\mathrm{
Publikováno v:
MRS Proceedings. 848
The magnetic properties of the first hollandite-type vanadium oxide containing anions in the 2×2 channels, V7.22O8(OH)8(Cl)0.77(H3O)2.34, are studied using static (DC) and dynamic (AC) magnetic susceptibilities. From the high-temperature Curie-Weiss
Autor:
J. Katana Ngala, John E. Greedan, Robert L. Laduca, Randy S. Rarig, Jon Zubieta, Robert Lam, Peter Y. Zavalij
Publikováno v:
Inorganic chemistry. 41(8)
The reactions of a Cu(II) salt, MoO(3), and the appropriate bipyridine ligand yield a series of bimetallic oxides, [Cu(3,4'-bpy)MoO(4)] (1), [Cu(3,3'-bpy)(0.5)MoO(4)] (2), and [Cu(4,4'-bpy)(0.5)MoO(4)].1.5H(2)O (3.1.5H(2)O). The structures of 1-3 exh
Autor:
Natasha A. Chernova, M. Stanley Whittingham, Luis J. Matienzo, J. Katana Ngala, Peter Y. Zavalij
Publikováno v:
MRS Proceedings. 756
The layered compounds of formula LiNi0.4Mn0.6-yCoyO2, for y=0.2, 0.3, and 0.4 and LiNi0.7-yMn0.3CoyO2 for y=0.3, and 0.1 were synthesized at 800°C. X-ray powder diffraction indicates layered structure of R 3m symmetry similar to a-NaFeO2. Rietveld r
Publikováno v:
MRS Proceedings. 658
A pure form of the compound [(CH3)4N]0.2Mn0.06V2O5+δ•0.2H2O has been synthesized by the hydrothermal technique. A manganese richer compound, [(CH3)4N]0.18Mn0.1V2O5+δ•0.35H2O, has also been synthesized. By comparison to [(CH3)4N]0.17Fe0.1V2O5+δ
Autor:
Natasha A. Chernova, Peter Y. Zavalij, M. Stanley Whittingham, Marc Mamak, J. Katana Ngala, Miaomiao Ma
Publikováno v:
Journal of Materials Chemistry. 14:214
The mixed transition metal layered compound, LiNi0.4Mn0.4Co0.2O2, with the α-NaFeO2 layer structure has been synthesized and characterized. The optimum temperature of synthesis was found to be 800–900 °C. Rietveld refinement showed that cobalt su
Autor:
Vincent Mark B. Crisostomo, J. Katana Ngala, Shaun Alia, Arthur Dobley, Christine Morein, Chun-Hu Chen, Xiongfei Shen, Steven L. Suib
Publikováno v:
Chemistry of Materials; Apr2007, Vol. 19 Issue 7, p1832-1839, 8p
Publikováno v:
Chemistry of Materials; Jan2007, Vol. 19 Issue 2, p229-234, 6p
Autor:
J. Katana Ngala, Natasha A. Chernova, Miaomiao Ma, Marc Mamak, Peter Y. Zavalij, M. Stanley Whittingham
Publikováno v:
Journal of Materials Chemistry; 01/08/2004, Vol. 14 Issue 2, p214-220, 7p