N-substituted amine-borane ionic liquids as fluid phase, hydrogen storage materials

Rekken, Brian D.; Carre-Burritt, Asa E.; Scott, Brian L.; Davis, Benjamin L.

doi:10.1039/c4ta03853c

Cited by 12 publications

(4 citation statements)

References 22 publications

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“…[23,24] Nevertheless, the hydrogen storage application has retained a dominant position with the development of numerous ABAs that are seen as Nsubstituted, oligomeric and cyclic derivatives of AB. [25][26][27][28][29][30] As hydrogen storage material, AB has received considerable attention also because of its physical state at ambient temperature and its ability to decompose from about 100°C. Unlike the isoelectronic ethane C 2 H 6 , AB is solid below 100°C due to the existence of dihydrogen H δ + ⋅⋅⋅H δÀ bonds of distance less than 2.4 Å.…”

Section: Introductionmentioning

confidence: 99%

A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties

et al. 2021

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Primary alkylamine borane adducts C x H 2x + 1 NH 2 BH 3 (CxAB) are unconventional molecules that may offer great opportunities in chemistry owing to their dihydrogen H δ + ⋅⋅⋅H δÀ bonds. Herein, we focus on six CxAB (x = 4,6,8,10,12,14), synthesized by Lewis acid-base reaction between the complex (CH 3 ) 2 S⋅BH 3 and the primary alkylamines. At ambient temperature, C4AB and C6AB are oily liquid, and the other adducts are crystalline solids. The melting temperatures of the CxAB linearly increase as a function of ln(x) due to stronger intermolecular Van der Waals forces between the alkyl chains, and they are higher by 20-40°C than those of the amines due to dihydrogen H δ + ⋅⋅⋅H δÀ bonds between the NH 2 BH 3 heads. The occurrence of dihydrogen H δ + ⋅⋅⋅H δÀ bonds is further confirmed by molecular and structural analyses. This is discussed hereafter.

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Section: Introductionmentioning

confidence: 99%

A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties

et al. 2021

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“…Their high capacity to release pure hydrogen rendered these ILs as promising hydrogen storage materials. Rekken et al 61 developed a series of task-specific ILs: the N -substituted amine-borane ILs (N-ABILs), combining three different cations (imidazolium + , pyrrolidinium + , and pyrazolium + ) with three different anions (Cl − , OTf − , and Tf 2 N − ), and their hydrogen storage capacity was investigated. It was found that the Cl-based IL had a higher capacity than OTf- and Tf 2 N- based ILs.…”

Section: Ionic Liquid Application In Hydrogen Storagementioning

confidence: 99%

Ionic liquids as a new cornerstone to support hydrogen energy

et al. 2023

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“…[262,263] In addition to their use as promoting solvents for hydrogen release, the potential of ILs themselves as efficient chemical hydrogen-storage materials has also been explored by exploiting the unique features of ILs, such as low vapor pressure and structure tunability. [264][265][266] Changing the cross-linking group from methacrylate to vinyl was found to dramatically reduce the tensile modulus and results in brittle films. [280] The bucky gels possess unique properties such as the combined nonvolatility and thermal stability of RTILs and high electronic conductivity of CNTs.…”

Section: Hydrogen-storage Materialsmentioning

confidence: 99%

Beyond solvents and electrolytes: Ionic liquids-based advanced functional materials

Zhang

et al. 2016

Progress in Materials Science

136

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Instead of being seen as alternative solvents and electrolytes for organic reactions, catalysis, separation, electrochemistry, and so on, ionic liquids (ILs) consisting of discrete cations and anions have recently emerged as versatile building blocks for advanced functional materials. A number of functional ILs and IL-containing composite materials have been realized by either chemical modification (covalent functionalization or ion-exchange metathesis) or physical integration of ILs and traditional materials. The unique structure and behavior of ILs as a platform not only provides additional opportunities to adjust the physicochemical properties of these ionic materials for task-specific applications, but also offers other attractive features such as intrinsic ionic conductivity and high thermal, chemical, and electrochemical stability. These soft materials combine the favorable features of ILs and the original chemistries of the functional groups or materials; some even possess unexpected functions resulting from synergetic interaction between these two components. Materialization of ILs is truly a novel, promising research direction for both IL chemistry and materials science. In this article, we review recent advances in IL-based functional materials, focusing on smart and sensitive materials, optical materials, energetic materials, and IL/carbon hybrid materials.

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N-substituted amine-borane ionic liquids as fluid phase, hydrogen storage materials

Abstract: Ionic liquids incorporating an amine-borane functionality can remain liquid below −20 °C and remain liquid after H2 release.

Cited by 12 publications

References 22 publications

A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties

A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties

Ionic liquids as a new cornerstone to support hydrogen energy

Beyond solvents and electrolytes: Ionic liquids-based advanced functional materials

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N-substituted amine-borane ionic liquids as fluid phase, hydrogen storage materials

Abstract: Ionic liquids incorporating an amine-borane functionality can remain liquid below −20 °C and remain liquid after H2 release.

Cited by 12 publications

References 22 publications

A Series of Primary Alkylamine Borane Adducts CxH2x+1NH2BH3: Synthesis and Properties

A Series of Primary Alkylamine Borane Adducts CxH2x+1NH2BH3: Synthesis and Properties

Ionic liquids as a new cornerstone to support hydrogen energy

Beyond solvents and electrolytes: Ionic liquids-based advanced functional materials

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A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties

A Series of Primary Alkylamine Borane Adducts C_xH_2x+1NH₂BH₃: Synthesis and Properties