Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Jeremy L. Bretherton"'
Publikováno v:
Journal of the American Ceramic Society. 87:2064-2071
Aluminum phosphate products formed by the reactions of alumina and alumina-gel systems with acidic phosphates were analyzed. Drying of alumina-gel to form microcrystalline boehmite and conversion to γ-alumina by thermal treatment was indicated by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::865a0f8fa1eb5aac960ecc131d807ffe
https://doi.org/10.1111/j.1151-2916.2004.tb06361.x
https://doi.org/10.1111/j.1151-2916.2004.tb06361.x
Autor:
Harald Behrens, Francois Holtz, Colin A. Fyfe, Mati Raudsepp, Lee A. Groat, Michael Fechtelkord, Jeremy L. Bretherton
Publikováno v:
American Mineralogist. 88:1046-1054
The influence of F substitution on the local structure of Al in the tetrahedral and octahedral sheets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e0ae6ebf405d57b1c5e85f9ccead38
https://doi.org/10.2138/am-2003-0713
https://doi.org/10.2138/am-2003-0713
Autor:
Mark G. Moloney, Stephen J. Heyes, Jonathan E. H. Buston, Timothy D. W. Claridge, Maya Stevenson, Jeremy L. Bretherton
Publikováno v:
Magnetic Resonance in Chemistry. 39:68-76
207Pb NMR spectroscopy was used to investigate 20 lead(IV) tetracarboxylates both in solution and in the solid state by cross-polarization magic angle spinning (CP/MAS) NMR. There is generally good correlation between isotropic chemical shifts in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dacd273ea4f7547187c43046c149361e
https://doi.org/10.1002/1097-458x(200102)39:2<68::aid-mrc802>3.0.co
https://doi.org/10.1002/1097-458x(200102)39:2<68::aid-mrc802>3.0.co
27 Al and 31 P solid state MAS NMR spectra obtained at high field for the aluminophosphate AlPO-36 show that the hydration process produces both 5- and 6-coordinate Al sites. 27 Al MQMAS spectra of the hydrated form show at least four tetrahedral alu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b164cfe95bedaf98cf64db90d94c4e4d
https://doi.org/10.1016/s0167-2991(04)80634-7
https://doi.org/10.1016/s0167-2991(04)80634-7
Publikováno v:
Journal of the American Chemical Society. 123(22)
The detection of all of the aluminum present in steamed zeolite H-Y catalysts by (27)Al MAS NMR at 14.4 T (600 MHz for (1)H) and 18.8T (800 MHz for (1)H) is reported. Further, it is shown that it is possible by (27)Al MAS and MQMAS NMR measurements t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26994c69036a969d2f81fe1b0c50c552
https://pubmed.ncbi.nlm.nih.gov/11457391
https://pubmed.ncbi.nlm.nih.gov/11457391
Publikováno v:
Chemical Communications. :1575-1576
The detection of all of the aluminium present in steamed zeolite H-Y catalysts by 27Al MAS NMR at high field (18.8 T, 800 MHz for 1H) is reported; further, it is shown that it is possible by 27Al MAS and MQMAS measurements to clearly identify four se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::329fba40f61eb108807fbeb4b26f6fd7
https://doi.org/10.1039/b003081n
https://doi.org/10.1039/b003081n