Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Timothy I. Morrison"'
Publikováno v:
Journal of Non-Crystalline Solids. 210:275-286
A commonly used expression for modeling the XAFS of highly disordered systems is shown to generate substantial systematic errors in the coordination number in many cases of practical interest. This expression is corrected and generalized. Further, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11c5b1354aec9c30a70ff19e1d751ccf
https://doi.org/10.1016/s0022-3093(96)00577-7
https://doi.org/10.1016/s0022-3093(96)00577-7
Autor:
Boyan Boyanov, Timothy I. Morrison
Publikováno v:
The Journal of Physical Chemistry. 100:16318-16326
The effects of Bronsted acidity on the spatial structure and electronic properties of platinum clusters supported on zeolite Y have been examined with X-ray absorption (XANES and EXAFS) and X-ray photoelectron spectroscopy. The clusters contain 10−
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f34b3005ca59b73f1c0c94b8a1c96515
https://doi.org/10.1021/jp961401x
https://doi.org/10.1021/jp961401x
Autor:
Boyan Boyanov, Timothy I. Morrison
Publikováno v:
The Journal of Physical Chemistry. 100:16310-16317
The effects of Bronsted acidity on the spatial structure and electronic properties of platinum clusters supported on zeolite Y have been examined with X-ray absorption (XANES and EXAFS) and X-ray photoelectron spectroscopy. The clusters contain 10−
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e102853068322bbac718be8fc7d2f14
https://doi.org/10.1021/jp9614005
https://doi.org/10.1021/jp9614005
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 339:596-603
Tapered-undulator radiation will be used in at least one of the third generation synchrotron sources. While the spectral and angular characteristics of the radiation have been calculated for some specific configurations, the effects of tapering on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::663e3b08659cbe8e2b64a5e16c594450
https://doi.org/10.1016/0168-9002(94)90199-6
https://doi.org/10.1016/0168-9002(94)90199-6
Publikováno v:
Physical Review B. 49:3172-3182
Small-angle x-ray scattering and x-ray-absorption near-edge spectroscopy (XANES) experiments have been performed on amorphous ${\mathrm{Fe}}_{\mathit{x}}$${\mathrm{Ge}}_{100\mathrm{\ensuremath{-}}\mathit{x}}$ alloys over the composition range 0\ensur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5342f3ba191bd0edf86ccc66c8080007
https://doi.org/10.1103/physrevb.49.3172
https://doi.org/10.1103/physrevb.49.3172
Autor:
J. Faber, Boyan Boyanov, Gerry W. Zajac, James A. Kaduk, Timothy I. Morrison, D. S. Yang, David R. Fazzini, D. Duck, Shiyou Pei
Publikováno v:
Catalysis Letters. 21:333-344
EXAFS studies have been carried out on titanium silicalite-1 (TS-1). The titanium atom is coordinated to four oxygen atoms at the distance of 1.80(1) A. There is no evidence for the presence of 5- and 6-coordinated titanium species or the novel 4-coo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39d05380d1fd43ae5f5d30e9c6ccd78
https://doi.org/10.1007/bf00769485
https://doi.org/10.1007/bf00769485
Autor:
Timothy I. Morrison, David R. Fazzini, Huaiyu Chen, Jeffrey T. Miller, Daniel J. Sajkowski, Gerry W. Zajac
Publikováno v:
Applied Catalysis. 62:205-220
Phosphorus-promoted and unpromoted Mo/Al 2 O 3 catalysts were studied, in the calcined and sulphided state, by extended X-ray absorption fine structure (EXAFS) spectroscopy and, in the calcined state, by X-ray photoelectron spectroscopy (XPS) and tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a891289ddde46fbd2f2601337e15f26
https://doi.org/10.1016/s0166-9834(00)82248-4
https://doi.org/10.1016/s0166-9834(00)82248-4
Publikováno v:
SPIE Proceedings.
It is important to be able to accurately predict the spectral and angular distribution of undulator radiation properties when designing beamlines; at new synchrotron radiation facilities or when performing radiation experiments at already existing be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb3f66c6efdba6e9a6c975c9843b0934
https://doi.org/10.1117/12.259881
https://doi.org/10.1117/12.259881
Publikováno v:
Journal of synchrotron radiation. 3(Pt 3)
A new method for analysis of EXAFS data from coordination shells containing two types of atoms distributed at two well defined distances is proposed. The method, which in effect isolates the individual contributions of the two subshells, can be viewe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::349cb511468400a7cdf5de0c46e4cca2
https://pubmed.ncbi.nlm.nih.gov/16702669
https://pubmed.ncbi.nlm.nih.gov/16702669
Publikováno v:
The Journal of Chemical Physics. 75:4086-4089
Analyses of the EXAFS of exchanged divalent manganese cations in small pore (A) and large pore (Y) zeolites reveal that the local environments of the cations in the zeolite are similar to the environments of Mn2+ in solution. Further, the EXAFS show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34568d5d51d54041dbcc2bd4a2373a1b
https://doi.org/10.1063/1.442568
https://doi.org/10.1063/1.442568