TY - JOUR
T1 - Combinatorial synthesis and hydrogenation of Mg/Al libraries prepared by electron beam physical vapor deposition
AU - Garcia, Gemma
AU - Doménech-Ferrer, Roger
AU - Pi, Francesc
AU - Santiso, Josep
AU - Rodríguez-Viejo, Javier
PY - 2007/3/1
Y1 - 2007/3/1
N2 - We have grown thin film libraries of the Mg-Al system using a high-throughput synthesis methodology that combines the sequential deposition of pure elements (Mg and Al) by an electron-beam (e-beam) evaporation technique and the use of a special set of moving shadow masks. This novel mask has been designed to simultaneously prepare four identical arrays of different compositions that will permit the characterization of the same library after several treatments. Wavelength dispersive spectroscopy (WDS) and micro-X-ray diffraction have been used as high-throughput screening techniques for the determination of the composition and structure of every member of the library in the as-deposited state and after hydrogenation at 1 atm of H2 during 24 h at three different temperatures: 60, 80, and 110°C. We have analyzed the influence of the Mg-Al ratio on the hydrogenation of magnesium, as well as on the appearance of complex hydride phases. We have also found that aluminum can act as a catalyzer for the hydrogenation reaction of magnesium.
AB - We have grown thin film libraries of the Mg-Al system using a high-throughput synthesis methodology that combines the sequential deposition of pure elements (Mg and Al) by an electron-beam (e-beam) evaporation technique and the use of a special set of moving shadow masks. This novel mask has been designed to simultaneously prepare four identical arrays of different compositions that will permit the characterization of the same library after several treatments. Wavelength dispersive spectroscopy (WDS) and micro-X-ray diffraction have been used as high-throughput screening techniques for the determination of the composition and structure of every member of the library in the as-deposited state and after hydrogenation at 1 atm of H2 during 24 h at three different temperatures: 60, 80, and 110°C. We have analyzed the influence of the Mg-Al ratio on the hydrogenation of magnesium, as well as on the appearance of complex hydride phases. We have also found that aluminum can act as a catalyzer for the hydrogenation reaction of magnesium.
UR - http://www.scopus.com/inward/record.url?scp=34047261426&partnerID=8YFLogxK
U2 - https://doi.org/10.1021/cc060131h
DO - https://doi.org/10.1021/cc060131h
M3 - Article
C2 - 17348729
VL - 9
SP - 230
EP - 236
IS - 2
ER -