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 |
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