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Physicochemical implications of alkoxide “mixing” in polyoxovanadium clusters for nonaqueous energy storage

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Abstract

Identification of suitable charge carriers is essential for the success of nonaqueous energy storage systems. Thus, elucidation of structural parameters which affect the physicochemical properties of a molecule in organic solvent is of critical importance. Here, we continue our work related to the development of polyoxovanadium-alkoxide clusters for nonaqueous energy storage through the synthesis and subsequent analysis of a series of “mixed”-alkoxide clusters, [V6O7(OR)12−x(OCH3)x] (R = C2H5, C3H7, C4H9, C5H11, C6H13). We determine that the presence of a mixture of bridging-alkoxides enhances both the physical and electrochemical behaviour of the clusters in nonaqueous energy storage schematics, evidenced by increased solubility and electron-transfer kinetics. These results provide insight into the consequences of using a classically “impure” system, revealing how synergistic behaviour of a mixture of compounds can yield improved function over that of a pure solution.

Graphical abstract: Physicochemical implications of alkoxide “mixing” in polyoxovanadium clusters for nonaqueous energy storage

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Publication details

The article was received on 20 Dec 2018, accepted on 07 Feb 2019 and first published on 07 Feb 2019


Article type: Paper
DOI: 10.1039/C8TA12306C
Citation: J. Mater. Chem. A, 2019, Advance Article

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    Physicochemical implications of alkoxide “mixing” in polyoxovanadium clusters for nonaqueous energy storage

    L. E. VanGelder, E. Schreiber and E. M. Matson, J. Mater. Chem. A, 2019, Advance Article , DOI: 10.1039/C8TA12306C

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