Artículo
Efficient synthesis of alkali borohydrides from mechanochemical reduction of borates using magnesium-aluminum-basedwaste
Le, Thi Thu; Pistidda, Claudio; Puszkiel, Julián Atilio
; Milanese, Chiara; Garroni, Sebastiano; Emmler, Thomas; Capurso, Giovanni; Gizer, Gökhan; Klassen, Thomas; Dornheim, Martin
Fecha de publicación:
10/2019
Editorial:
Multidisciplinary Digital Publishing Institute
Revista:
Metals
e-ISSN:
2075-4701
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Lithium borohydride (LiBH4) and sodium borohydride (NaBH4) were synthesized via mechanical milling of LiBO2, and NaBO2 with Mg-Al-based waste under controlled gaseous atmosphere conditions. Following this approach, the results herein presented indicate that LiBH4 and NaBH4 can be formed with a high conversion yield starting from the anhydrous borates under 70 bar H2. Interestingly, NaBH4 can also be obtained with a high conversion yield by milling NaBO2·4H2O and Mg-Al-based waste under an argon atmosphere. Under optimized molar ratios of the starting materials and milling parameters, NaBH4 and LiBH4 were obtained with conversion ratios higher than 99.5%. Based on the collected experimental results, the influence of the milling energy and the correlation with the final yields were also discussed.
Palabras clave:
ALKALI BOROHYDRIDES
,
BALL MILLING
,
HIGH CONVERSION YIELD
,
MG-AL WASTE
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Le, Thi Thu; Pistidda, Claudio; Puszkiel, Julián Atilio; Milanese, Chiara; Garroni, Sebastiano; et al.; Efficient synthesis of alkali borohydrides from mechanochemical reduction of borates using magnesium-aluminum-basedwaste; Multidisciplinary Digital Publishing Institute; Metals; 9; 10; 10-2019; 1-17
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