Azo-functionalised metal-organic framework for charge storage in sodium-ion batteries
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.
Citation
Desai , A V , Seymour , V , Ettlinger , R , Pramanik , A , Manche , A G , Rainer , D N , Wheatley , P S S , Griffin , J , Morris , R & Armstrong , A R 2023 , ' Azo-functionalised metal-organic framework for charge storage in sodium-ion batteries ' , Chemical Communications , vol. 59 , no. 10 , pp. 1321-1324 . https://doi.org/10.1039/D2CC06154F
Publication
Chemical Communications
Status
Peer reviewed
ISSN
1359-7345Type
Journal article
Description
Funding: This work was supported by Faraday Institution (Grant-FIRG018). We are grateful to Engineering and Physical Sciences Research Council (EPSRC) for the Light Element Facility Grant (EP/T019298/1) and Strategic Equipment Resource Grant (EP/R023751/1).Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.