TU Darmstadt / ULB / TUbiblio

Diborane Release from LiBH4/Silica-Gel Mixtures and the Effect of Additives

Kostka, J. ; Lohstroh, W. ; Fichtner, M. ; Hahn, H. (2007)
Diborane Release from LiBH4/Silica-Gel Mixtures and the Effect of Additives.
In: Journal of Physical Chemistry C, 111 (37)
doi: 10.1021/jp073783k
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

LiBH4 that has been ball-milled with different additives and subsequently mixed with mesoporous silica-gel has been investigated using thermal desorption spectroscopy and thermogravimetry. Mixtures of LiBH4 and mesoporous silica-gel (composition 50:50 wt %) release hydrogen at 260°C. Samples, where LiBH4 was ball-milled prior to mixing with silica-gel with 5 mol % PdCl2, NiCl2, LaCl3 or TiCl3, have similar decomposition temperatures. Mass spectrometry data of the emitted gas streams show that almost all hydrogen desorption events are accompanied by the evolution of gaseous diborane, B2H6. The relative diborane concentration above 350 °C is considerably lowered by LaCl3 and TiCl3, whereas the other additives investigated have little influence on the amount of released diborane.

Typ des Eintrags: Artikel
Erschienen: 2007
Autor(en): Kostka, J. ; Lohstroh, W. ; Fichtner, M. ; Hahn, H.
Art des Eintrags: Bibliographie
Titel: Diborane Release from LiBH4/Silica-Gel Mixtures and the Effect of Additives
Sprache: Englisch
Publikationsjahr: 20 September 2007
Verlag: ACS Publications
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physical Chemistry C
Jahrgang/Volume einer Zeitschrift: 111
(Heft-)Nummer: 37
DOI: 10.1021/jp073783k
Kurzbeschreibung (Abstract):

LiBH4 that has been ball-milled with different additives and subsequently mixed with mesoporous silica-gel has been investigated using thermal desorption spectroscopy and thermogravimetry. Mixtures of LiBH4 and mesoporous silica-gel (composition 50:50 wt %) release hydrogen at 260°C. Samples, where LiBH4 was ball-milled prior to mixing with silica-gel with 5 mol % PdCl2, NiCl2, LaCl3 or TiCl3, have similar decomposition temperatures. Mass spectrometry data of the emitted gas streams show that almost all hydrogen desorption events are accompanied by the evolution of gaseous diborane, B2H6. The relative diborane concentration above 350 °C is considerably lowered by LaCl3 and TiCl3, whereas the other additives investigated have little influence on the amount of released diborane.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 13 Feb 2013 12:14
Letzte Änderung: 05 Mär 2013 10:05
PPN:
Export:
Suche nach Titel in: TUfind oder in Google
Frage zum Eintrag Frage zum Eintrag

Optionen (nur für Redakteure)
Redaktionelle Details anzeigen Redaktionelle Details anzeigen