Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Joseph T. Lewandowski"'
Publikováno v:
Journal of the American Chemical Society. 115:4137-4144
Lithium nickel oxides, Li[sub x]Ni[sub 1[minus]x]O, with the lithium content x varying from 0.40 (close to the maximum value of 0.5) to 0 have been studied by using nickel K-edge X-ray absorption fine structure (XAFS) spectroscopy. The XANES (X-ray a
Publikováno v:
Materials Research Bulletin. 27:981-988
The mixed metal oxides Ca 2 B 2 O 7 (B = Nb, Ta) have been synthesized with the pyrochlore structure. The oxides were prepared by hydrolysis of Nb and Ta alkoxides and subsequent crystallization in the presence of the divalent cation in alkaline solu
Publikováno v:
Solid State Ionics. :405-412
Lithium nickel oxide phases, Li x Ni 1− x O( x =0.400, 0.347, 0.320) have been synthesized by direct solid state reaction of Li 2 CO 3 and NiO. The structures and cation distribution have been determined at ambient temperature and 60 K from time of
Publikováno v:
Materials Research Bulletin. 25:679-686
Ion exchange reactions of the layered solid acid HCa2Nb3O10 with alkali metal cations have been investigated in aqueous solutions at temperatures between ambient and 100°C. The extent of exchange differs for the different alkali metal cations. The e
Publikováno v:
Chemistry of Materials. 2:279-286
Publikováno v:
Inorganic Syntheses: Nonmolecular Solids, Volume 30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60bd9263fd5c8a4a4caa6d4f8beb84b8
https://doi.org/10.1002/9780470132616.ch13
https://doi.org/10.1002/9780470132616.ch13
Publikováno v:
Methane and Alkane Conversion Chemistry ISBN: 9781461357308
Selective, catalytic processes to convert methane into higher hydrocarbons or oxygenates are of great industrial importance because they would enable the conversion of abundant, remote natural gas reserves to useful petrochemicals and fuels. 1–6,7a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51b72d8d79059499e5e69e6d2c8b016c
https://doi.org/10.1007/978-1-4615-1807-5_10
https://doi.org/10.1007/978-1-4615-1807-5_10
Publikováno v:
Journal of the Less Common Metals. 116:137-146
The alkali cations in the layered perovskites MCa 2 Nb 3 O 10 (M ≡ K, Rb, Cs) are exchanged by protons in aqueous acid in a topochemical reaction to give HCa 2 Nb 3 O 10 . The unit cell of HCa 2 Nb 3 O 10 , as determined from powder X-ray diffracti
Publikováno v:
Materials Research Bulletin. 16:489-496
A new series of mixed metal oxides with the pyrochlore structure has been discovered and can be described by the general formula A2[B2−xAx]O7−y where A = Pb or Bi, B = Ru or Ir, 0 < x ≲ 1 and 0 ≤ y ≤ 0.5. Values of x appreciably greater tha
Publikováno v:
Materials Research Bulletin. 22:45-51
Layered compounds of formula C/sub n/H/sub 2n+1/NH/sub 3/Ca/sub 2/Nb/sub 3/O/sub 10/ are formed by reaction of n-alkylamines with the solid acid HCa/sub 2/Nb/sub 3/O/sub 10/. Other organic bases such as pyridine can also be intercalated. The lattice