Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Susanne M. Opalka"'
Autor:
Susanne M. Opalka, Tianli Zhu
Publikováno v:
Microporous and Mesoporous Materials. 222:256-270
An experimentally-guided theoretical study was conducted to investigate H-ZSM-5 aluminosilicate lattice intrinsic Bronsted acid site properties and reactive functionalities. The variation of intrinsic parameters, including Si/Al ratio and Al distribu
Publikováno v:
Energy & Fuels. 28:6188-6199
Atomic modeling was conducted to mechanistically investigate the CsOH steam gasification catalyst coating that has been successfully demonstrated to eliminate coke deposits during high temperature fuel pyrolysis. This effective coke mitigation was in
Autor:
Neal Magdefrau, Thomas Henry Vanderspurt, Ying She, Susanne M. Opalka, Catherine Thibaud-Erkey, Sean C. Emerson
Publikováno v:
Journal of Membrane Science. 452:203-211
H 2 permeation through Pd–Cu alloy membranes was carried out using pure H 2 , simulated syngas, and binary H 2 gas mixtures of N 2 , CO, CO 2 , or H 2 O, respectively, along with and without H 2 S in the feed to investigate the impact of non-hydrog
Autor:
Hilde Grove, Bjørn C. Hauback, Susanne M. Opalka, Richard H. Heyn, Ole Martin Løvvik, Weiming Huang
Publikováno v:
International Journal of Hydrogen Energy. 36:7602-7611
The quaternary aluminum hydride LiMg(AlH4)3 contains 9.7 wt% hydrogen, of which 7.2 wt% can be released in a two-step decomposition reaction via first formation of LiMgAlH6 and then the binary hydrides MgH2 and LiH. In-situ synchrotron radiation powd
Publikováno v:
Journal of Membrane Science. 375:96-103
Atomic modeling was conducted to investigate the origin of S interactions with Pd alloy H selective membrane candidates selected from the Pd–Cu, Pd–Ag, and Pd–Au binary systems, as well as their constitutive metals. The electronic characteristi
Publikováno v:
Calphad. 32:624-636
Thermodynamic assessments were made to optimize thermodynamic models and parameter fits to selected experimental and first principles hypothetical predicted phase data within the Na–Al–Ti–H system. This enabled thermodynamic modeling of Ti solu
Autor:
Ole Martin Løvvik, Susanne M. Opalka
Publikováno v:
Surface Science. 602:2840-2844
It is well known that silver segregates to the surface of pure and ideal Pd–Ag alloy surfaces. By first-principles band-structure calculations it is shown in this paper how this may be changed when hydrogen is adsorbed on a Pd–Ag(1 1 1) surface.
Autor:
Susanne M. Opalka, Bjørn C. Hauback, Richard H. Heyn, Xia Tang, Hendrik W. Brinks, F.-J. Wu, B. L. Laube, Hilde Grove
Publikováno v:
Journal of Alloys and Compounds. 455:249-254
The structure of LiMg(AlD 4 ) 3 was investigated using synchrotron radiation powder X-ray diffraction, powder neutron diffraction, and density functional theory atomic simulations. The experimental crystallographic data were refined with the monoclin
Publikováno v:
Journal of Alloys and Compounds. :228-231
Lightweight complex hydrides have attracted attention for their high storage hydrogen capacity. NaAlH 4 has been widely studied as a hydrogen storage material for its favorable reversible operating temperature and pressure range for automotive fuel c
Autor:
Susanne M. Opalka, Ole Martin Løvvik, Y. She, Thomas Henry Vanderspurt, Da Wang, Ted B. Flanagan, W. Huang, Sean C. Emerson
Publikováno v:
Journal of Alloys and Compounds. :583-587
Combined experimental and modeling studies on hydrogen interactions with PdCu ordered body-centered cubic (B2) alloys have set the stage for membrane alloy development for advanced water gas shift membrane reactors that separate pure hydrogen from co