Zobrazeno 1 - 10
of 61
pro vyhledávání: '"S.S. Pollack"'
Autor:
J. P. Tamilia, Robert A. Graham, Kenneth S. Vecchio, Donald V. Martello, J.R. Diehl, S.S. Pollack
Publikováno v:
Geochimica et Cosmochimica Acta. 58:4657-4665
XPS, SEM and TEM studies were made on coal, non-coal, and shock-loaded pyrites that had been experimentally weathered under high relative humidity. Reactivity (oxidation) of the different pyrite samples may be related to their stacking fault densitie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb7dd4035bcfa805cc08bf12a760b8d3
https://doi.org/10.1016/0016-7037(94)90198-8
https://doi.org/10.1016/0016-7037(94)90198-8
Publikováno v:
Journal of Molecular Catalysis. 66:195-203
Styrene adsorbed in the channels of ZSM-5 and other zeolites and then activated by heat or irradiation produces pigmented pink to purple complexes. The complexes were prepared with zeolite containing some aluminum substituting for silicon in the stru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f6c21f8eea47257f8f29f5b6b03aa18
https://doi.org/10.1016/0304-5102(91)80013-s
https://doi.org/10.1016/0304-5102(91)80013-s
Powder compacts of a commercially-available pyrite, FeS2, have been subjected to controlled, quantitative high pressure shock loading at peak pressures from 7.5-22 GPa. The profiles of the x-ray diffraction lines have been examined to determine the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01b7ee6c36e91309083d695a5a29245f
https://doi.org/10.1016/b978-0-444-89732-9.50141-2
https://doi.org/10.1016/b978-0-444-89732-9.50141-2
Highly reactive coal pyrites and unstable museum specimens are easily distinguished from the stable pyrites by the growth of white crystals that cover samples exposed to room atmosphere for short periods of time. Continued exposure to the atmosphere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b696aa8926fa2d51b62fd75a7d4768e3
https://doi.org/10.1016/b978-0-7506-0387-4.50224-2
https://doi.org/10.1016/b978-0-7506-0387-4.50224-2
Publikováno v:
Proceedings, annual meeting, Electron Microscopy Society of America. 48:224-225
Unstable iron pyrites known as ‘rotten’ pyrite, have been a problem for mineral collectors since these pyrites spontaneously react to form iron sulfates with subsequent fracturing of the specimens when they are stored under ambient conditions. Mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb066334abb94fc336e16704c38acdf3
https://doi.org/10.1017/s0424820100174254
https://doi.org/10.1017/s0424820100174254
Publikováno v:
Applied Catalysis. 5:65-84
The deactivation of HDS catalysts for coal hydrogenation is usually attributed to metals and coke buildup on the catalysts. To simplify a study of its structure the coke was separated from the inorganic components in the catalyst by acid treatment, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91c833bdacf56f72f7fc25b7e28d19b6
https://doi.org/10.1016/0166-9834(83)80296-6
https://doi.org/10.1016/0166-9834(83)80296-6
Publikováno v:
Zeolites. 4:181-187
An X-ray diffraction technique has been developed for estimating the SiO 2 Al 2 O 3 ratio in ZSM—5 crystals with ratios varying from 30 to 150. The 26 value in degrees for the (10, 0, 0; 804) peak minus the 2θ value for the (0, 10, 0) peak is used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dccac7d46860f8b6546130197923896b
https://doi.org/10.1016/0144-2449(84)90058-7
https://doi.org/10.1016/0144-2449(84)90058-7
Publikováno v:
Zeolites. 7:265-271
Zeolites of the offretite—erionite family were synthesized using various organic cationic templates in place of the tetramethylammonium cation normally used in offretite synthesis. These zeolites had 400–500 m 2 g −1 surface area, 0.25–0.30 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a90367d09fdb88eb112d2e9e004b333
https://doi.org/10.1016/0144-2449(87)90063-7
https://doi.org/10.1016/0144-2449(87)90063-7
Publikováno v:
Journal of Catalysis. 78:454-460
In this study a series of Fe-Mo/Al/sub 2/O/sub 3/ catalysts with different atomic ratios, R = Mo/Mo + Fe, of 0.05, 0.25, 0.50, 0.75, 0.90, and 0.95 were prepared and characterized by x-ray diffraction and Moessbauer and Auger spectroscopic techniques
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18ecd7d11d67ab0930d3820482a23964
https://doi.org/10.1016/0021-9517(82)90328-1
https://doi.org/10.1016/0021-9517(82)90328-1
Alumina-rich zeolites of the pentasil family [with 20 2 O 3 ) 2 /A1 2 O 3 ) 2 O 3 ,:xSiO 2 : 1.5Na 2 O:2.2K 2 O:250H 2 O containing four moles of trioctylamine per mole Al 2 O 3 . For values of x equal to 8, 10, 12, 15, 20, 24, 30 and 1000, analcime,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaa0b94cdf121e5d72f05a80d6e1dbe1
https://doi.org/10.1016/s0167-2991(09)60581-4
https://doi.org/10.1016/s0167-2991(09)60581-4