Azo-functionalised metal-organic framework for charge storage in sodium-ion batteries

Aamod V. Desai, Valerie Seymour, Romy Ettlinger, Atin Pramanik, Alexis Gilles Manche, Daniel N. Rainer, Paul Stewart S Wheatley, John Griffin, Russell Morris*, Anthony Robert Armstrong*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
16 Downloads (Pure)

Abstract

Sodium-ion batteries (NIBs) are emerging as promising devices for energy storage applications. Porous solids, such as metal–organic frameworks (MOFs), are well suited as electrode materials for technologies involving bulkier charge carriers. However, only limited progress has been made using pristine MOFs, primarily due to lack of redox-active organic groups in the materials. In this work a azo-functional MOF, namely UiO-abdc, is presented as an electrode compound for sodium-ion insertion. The MOF delivers a stable capacity (∼100 mA h g−1) over 150 cycles, and post-cycling characterisation validates the stability of the MOF and participation of the azo-group in charge storage. This study can accelerate the realisation of pristine solids, such as MOFs and other porous organic compounds, as battery materials.
Original languageEnglish
Pages (from-to)1321-1324
Number of pages4
JournalChemical Communications
Volume59
Issue number10
Early online date30 Dec 2022
DOIs
Publication statusPublished - 4 Feb 2023

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