Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb

Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb

In total, three novel organic derivatives of lanthanide borohydrides, n-But<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> (TBA<i>RE</i>B), <i>RE</i> = Ho, Tm, Yb, have been prepared utilizing mechanochemical synthesis and pu...

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Main Authors: Wojciech Wegner, Tomasz Jaroń
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Materials
Subjects:
borohydrides
lanthanides
hydrogen storage
crystal structures
polymorphism
thermal stability
Online Access:https://www.mdpi.com/1996-1944/14/6/1329
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spelling doaj-6aaa40dd3a5c4048b10dad20c5ca68242021-03-11T00:01:42ZengMDPI AGMaterials1996-19442021-03-01141329132910.3390/ma14061329Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and YbWojciech Wegner0Tomasz Jaroń1College of Inter-Faculty Individual Studies in Mathematics and Natural Sciences, University of Warsaw, Banacha 2c, 02-097 Warsaw, PolandCentre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, PolandIn total, three novel organic derivatives of lanthanide borohydrides, n-But<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> (TBA<i>RE</i>B), <i>RE</i> = Ho, Tm, Yb, have been prepared utilizing mechanochemical synthesis and purified via solvent extraction. Studies by single crystal and powder X-ray diffraction (SC-XRD and PXRD) revealed that they crystalize in two polymorphic forms, α- and β-TBA<i>RE</i>B, adopting monoclinic (<i>P</i>2<sub>1</sub>/c) and orthorhombic (<i>P</i>nna) unit cells, previously found in TBAYB and TBAScB, respectively. Thermal decomposition of these compounds has been investigated using thermogravimetric analysis and differential scanning calorimetry (TGA/DSC) measurements, along with the analysis of the gaseous products with mass spectrometry (MS) and with analysis of the solid decomposition products with PXRD. TBAHoB and TBAYbB melt around 75 °C, which renders them new ionic liquids with relatively low melting points among borohydrides.https://www.mdpi.com/1996-1944/14/6/1329borohydrideslanthanideshydrogen storagecrystal structurespolymorphismthermal stability
collection DOAJ
language English
format Article
sources DOAJ
author Wojciech Wegner
Tomasz Jaroń
spellingShingle Wojciech Wegner
Tomasz Jaroń
Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
Materials
borohydrides
lanthanides
hydrogen storage
crystal structures
polymorphism
thermal stability
author_facet Wojciech Wegner
Tomasz Jaroń
author_sort Wojciech Wegner
title Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
title_short Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
title_full Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
title_fullStr Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
title_full_unstemmed Synthesis, Polymorphism and Thermal Decomposition Process of (n-C<sub>4</sub>H<sub>9</sub>)<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> for <i>RE</i> = Ho, Tm and Yb
title_sort synthesis, polymorphism and thermal decomposition process of (n-c<sub>4</sub>h<sub>9</sub>)<sub>4</sub>n<i>re</i>(bh<sub>4</sub>)<sub>4</sub> for <i>re</i> = ho, tm and yb
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2021-03-01
description In total, three novel organic derivatives of lanthanide borohydrides, n-But<sub>4</sub>N<i>RE</i>(BH<sub>4</sub>)<sub>4</sub> (TBA<i>RE</i>B), <i>RE</i> = Ho, Tm, Yb, have been prepared utilizing mechanochemical synthesis and purified via solvent extraction. Studies by single crystal and powder X-ray diffraction (SC-XRD and PXRD) revealed that they crystalize in two polymorphic forms, α- and β-TBA<i>RE</i>B, adopting monoclinic (<i>P</i>2<sub>1</sub>/c) and orthorhombic (<i>P</i>nna) unit cells, previously found in TBAYB and TBAScB, respectively. Thermal decomposition of these compounds has been investigated using thermogravimetric analysis and differential scanning calorimetry (TGA/DSC) measurements, along with the analysis of the gaseous products with mass spectrometry (MS) and with analysis of the solid decomposition products with PXRD. TBAHoB and TBAYbB melt around 75 °C, which renders them new ionic liquids with relatively low melting points among borohydrides.
topic borohydrides
lanthanides
hydrogen storage
crystal structures
polymorphism
thermal stability
url https://www.mdpi.com/1996-1944/14/6/1329
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AT tomaszjaron synthesispolymorphismandthermaldecompositionprocessofncsub4subhsub9subsub4subnireibhsub4subsub4subforireihotmandyb
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