Zobrazeno 1 - 10
of 12
pro vyhledávání: '"C. T. Harrower"'
Autor:
H. Fritzsche, C. T. Harrower, E. Poirier, Colin Ophus, J. Haagsma, David Mitlin, Erik J. Luber
Publikováno v:
Canadian Journal of Physics. 88:723-728
In this article, we show how neutron reflectometry (NR) can provide deep insight into the absorption and desorption properties of commercially promising hydrogen storage materials. NR benefits from the large negative scattering length of hydrogen ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eec0c1e7b733e4c70a32c917592d5ca7
https://doi.org/10.1139/p09-085
https://doi.org/10.1139/p09-085
Autor:
Helmut Fritzsche, David Mitlin, Colin Ophus, J. Haagsma, W.P. Kalisvaart, Eric Poirier, C. T. Harrower, Erik J. Luber, Beniamin Zahiri
Publikováno v:
International Journal of Hydrogen Energy. 35:2091-2103
This study focused on hydrogen sorption properties of 1.5 μm thick Mg-based films with Al, Fe and Ti as alloying elements. The binary alloys are used to establish as baseline case for the ternary Mg–Al–Ti, Mg–Fe–Ti and Mg–Al–Fe compositi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::115b633febf1f27cb7c08c0963d1fe47
https://doi.org/10.1016/j.ijhydene.2009.12.013
https://doi.org/10.1016/j.ijhydene.2009.12.013
Publikováno v:
Carbon. 47:3441-3451
Vertically aligned millimeter-scale carbon nanotube (CNT) arrays have been successfully deposited on both Fe(3 nm)/Al2O3 and Fe(1 nm)/Al2O3 catalyst films under different optimum pretreatment conditions by catalytic chemical vapor deposition. By inve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1fe44b55beb6bf4820e7c52c0c2e674
https://doi.org/10.1016/j.carbon.2009.08.011
https://doi.org/10.1016/j.carbon.2009.08.011
Publikováno v:
International Journal of Hydrogen Energy. 34:7741-7748
We analyzed the elevated temperature volumetric hydrogen sorption behavior of magnesium thin films catalyzed by nano-scale bi-layers of Pd/Ta, Pd/Nb, Pd/Ti and Pd/Fe. Sorption of magnesium catalyzed by pure Pd was determined as a baseline. Sorption c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418ff97e94d5ff97e23ba7fd837f6b68
https://doi.org/10.1016/j.ijhydene.2009.07.026
https://doi.org/10.1016/j.ijhydene.2009.07.026
Autor:
D. R. Oliver, C. T. Harrower
Publikováno v:
Journal of Materials Science. 41:8166-8172
Gold nanoparticles with mean diameter 10–15 nm have been synthesized and stabilized using capping agents in a polar solvent (water) and a non-polar solvent (dodecane). Using two gold bond wires (diameter 0.25 mm and separated by less than 10 μm) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d47aded626cd57a4c38747ff3b255cc9
https://doi.org/10.1007/s10853-006-0392-1
https://doi.org/10.1007/s10853-006-0392-1
Autor:
Derek R. Oliver, C. T. Harrower
Publikováno v:
Key Engineering Materials. 314:121-126
Gold nanoparticles were fabricated via the precipitation of gold that follows the reduction of tetrachloroauric acid in the presence of a ligand such as citric acid. Synthesis and stabilization of gold nanoparticles has been achieved in a variety of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4929978b2fc2e809a34dca6834867e45
https://doi.org/10.4028/www.scientific.net/kem.314.121
https://doi.org/10.4028/www.scientific.net/kem.314.121
Autor:
Helmut Fritzsche, Adam Bird, Nico Grimm, Eric Poirier, C. T. Harrower, Roland Steitz, David Mitlin, Peter Kalisvaart, Anke Teichert, Dirk Wallacher
We present a neutron reflectometry study of deuterium absorption in thin films of Al-containing Mg alloys capped with a Ta/Pd, Ni/Pd and Ti/Pd-catalyst bilayer. The measurements were performed at room temperature over the 0–1 bar pressure range und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc0661f742e94837299744b8d1732c02
https://doi.org/10.1016/j.jallcom.2011.02.111
https://doi.org/10.1016/j.jallcom.2011.02.111
Autor:
Nico Grimm, W.P. Kalisvaart, Dirk Wallacher, C. T. Harrower, Eric Poirier, Helmut Fritzsche, David Mitlin, Roland Steitz, Anke Teichert, Erik J. Luber
Magnesium hydride has high storage capacity (7.6 wt % H) but very slow sorption kinetics. Addition of catalytic phases on the surface as well as alloying with transition metals is known to improve the properties. In this study, the sorption kinetics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f254c1bd3cec3c6b9c7dfc1cd861f365
https://doi.org/10.1021/jp209296b
https://doi.org/10.1021/jp209296b
Early deuteration steps of Pd- and Ta/Pd- catalyzed Mg70Al30 thin films observed at room temperature
Autor:
Helmut Fritzsche, C. T. Harrower, Eric Poirier, Bulent Akgun, Sushil K. Satija, David Mitlin, Peter Kalisvaart
Deuterium absorption in Mg70Al30 thin films coated with a Pd layer and a Ta/Pd bilayer were investigated using in situ neutron reflectometry at room temperature and deuterium pressures up to 1.3 bar. The approach used provides a detailed profile, at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ba36debbaba1885199767eadada6507
https://nrc-publications.canada.ca/eng/view/object/?id=aca79052-14af-471f-8e4b-634d287c5449
https://nrc-publications.canada.ca/eng/view/object/?id=aca79052-14af-471f-8e4b-634d287c5449
We used neutron reflectometry (NR) to study the structural changes of thin Pd-capped Mg 0.7 Al 0.3 and Mg 0.6 Al 0.4 alloy films after hydrogen absorption and during hydrogen desorption. NR enabled us to determine the hydrogen content and hydrogen di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94b22f9c2f0ea946ffbbc9dbc477f5dc
https://doi.org/10.1016/j.nima.2008.11.113
https://doi.org/10.1016/j.nima.2008.11.113