Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Larry W. Beck"'
Autor:
Ayorinde Awonusi, Michael D. Morris, Mary M Tecklenburg, Erin E. Wilson, David H. Kohn, Larry W. Beck
Publikováno v:
Biophysical Journal. 90(10):3722-3731
Hydrogen-bearing species in the bone mineral environment were investigated using solid-state NMR spectroscopy of powdered bone, deproteinated bone, and B-type carbonated apatite. Using magic-angle spinning and cross-polarization techniques three type
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94f6cfdcfb522dd90aebbca3274ba992
Publikováno v:
Environmental Science & Technology. 40:2572-2577
The dissociation of hexafluorosilicate has been reinvestigated due to recent suggestions that fluorosilicate intermediates may be present in appreciable concentrations in drinking water. 19F NMR spectroscopy has been used to search for intermediates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4596d149c142bef244b1167ea4f55c6
https://doi.org/10.1021/es052295s
https://doi.org/10.1021/es052295s
Publikováno v:
Microporous and Mesoporous Materials. 48:57-64
Pure-silica molecular sieves with the MFI topology and zincosilicates, aluminosilicates, borosilicates and pure silicates with the *BEA topology are synthesized and subjected to solvent extraction treatments in an effort to remove the organic structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17e4d89599f552a5705c312a1c87e27a
https://doi.org/10.1016/s1387-1811(01)00330-4
https://doi.org/10.1016/s1387-1811(01)00330-4
Si-MFI crystallization using a 'Dimer' and 'Trimer' of TPA studied with small-angle X-ray scattering
Autor:
Theo P. M. Beelen, Rutger A. van Santen, Mark E. Davis, Peter-Paul E. A. de Moor, Larry W. Beck
Publikováno v:
Journal of Physical Chemistry B, 104(32), 7600-7611. American Chemical Society
The formation and consumption of precursors and the crystallization of Si-MFI using bis(tripropylammonium) hexamethylene dihydroxide (“dimer” of tetrapropylammonium cation, TPA) and bis(tripropylammonium-N-N‘-hexamethylene)-N‘ ‘,N‘ ‘-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d68e4cf1028504f25513dde46b13b71b
https://research.tue.nl/en/publications/b1080304-7716-4723-bc03-56303a120830
https://research.tue.nl/en/publications/b1080304-7716-4723-bc03-56303a120830
Publikováno v:
Microporous and Mesoporous Materials. 33:197-207
A number of 1,4-diazabicyclo[2,2,2]octane (DABCO) derivatives are used as structure-directing agents in high-silica, zeolite syntheses in the presence and absence of Al3+, B3+ and Zn2+. Several high-silica products including phases with unknown struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eceac34a55aca8903633304ae3bcff4
https://doi.org/10.1016/s1387-1811(99)00138-9
https://doi.org/10.1016/s1387-1811(99)00138-9
Autor:
Bernd U. Komanschek, Mark E. Davis, Rutger A. van Santen, Larry W. Beck, Peter-Paul E. A. de Moor, Paul Wagner, Theo P. M. Beelen
Publikováno v:
Chemistry - A European Journal. 5:2083-2088
The formation and consumption of precursors during zeolite crystallisation has been followed by small-angle X-ray scattering techniques. The nanometer-scale precursors are specific for the zeolite topology formed, and their aggregation is an essentia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04a9eeb4bd639fb260627b44ab222a2a
https://doi.org/10.1002/(sici)1521-3765(19990702)5:7<2083::aid-chem2083>3.0.co
https://doi.org/10.1002/(sici)1521-3765(19990702)5:7<2083::aid-chem2083>3.0.co
Publikováno v:
Microporous and Mesoporous Materials. 28:387-393
Tetrapropylammonium, ethanoltripropylammonium and diethanoldipropylammonium cations were used as structure-directing agents for the synthesis of pure-silica, MFI-type zeolites. These molecules are employed to investigate the influence of the organic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::990294b98b23b10406b415886e4025bf
https://doi.org/10.1016/s1387-1811(98)00307-2
https://doi.org/10.1016/s1387-1811(98)00307-2
Publikováno v:
Microporous and Mesoporous Materials. 28:519-530
The diastereomers of 4,4′-trimethylenebis(1-methyl-1-benzylpiperidinium) are synthesized and used as organic agents in the synthesis of pure-silica molecular sieves in order to investigate further the nature of structure-direction. The diastereomer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab825a523097c912025caa4983578143
https://doi.org/10.1016/s1387-1811(98)00341-2
https://doi.org/10.1016/s1387-1811(98)00341-2
Publikováno v:
The Journal of Physical Chemistry B. 103:2674-2679
Zincosilicate CIT-6 (California Institute of Technology number 6) that has the *BEA-type structure is synthesized at hydrothermal conditions in the presence of tetraethylammonium hydroxide (TEAOH), Li+, and Zn2+. As opposed to zeolite beta, TEA catio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b92c7bff7b493bdeaa5a50651921d40b
https://doi.org/10.1021/jp9845726
https://doi.org/10.1021/jp9845726
Publikováno v:
Topics in Catalysis. 9:35-42
A new, large pore zincosilicate denoted CIT-6 with the framework topology of zeolite beta has been synthesized from reaction mixtures containing Li+, Zn2+ and tetraethylammonium hydroxide (TEAOH) as a structure-directing agent (SDA). The effects of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb4a01763a76f12deff2e83fa64d5619
https://doi.org/10.1023/a:1019150203436
https://doi.org/10.1023/a:1019150203436