2D Germanane-MXene Heterostructures for Cations Intercalation in Energy Storage Applications
Loading...
Date
2024-02-01
Authors
Ghosh, Kalyan
Ng, Siow Woon
Lazar, Petr
Kandambath Padinjareveetil, Akshay Kumar
Michalička, Jan
Pumera, Martin
0000-0001-6840-6590Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
WILEY-V C H VERLAG GMBH
Altmetrics
Abstract
Heterostructures offer an exceptional possibility of combining individual 2D materials into a new material having altered properties compared to the parent materials. Germanane (GeH) is a 2D material with many favorable properties for energy storage and catalysis, however, its performance is hindered by its low electrical conductivity. To address the low electrochemical performance of GeH, a heterostructure of GeH and Ti3C2Tx is fabricated. The Ti3C2TX is a layered material belonging to the family of MXenes. The resulting heterostructure (GeMXene) at a defined mass ratio of GeH and Ti3C2Tx shows superior capacitive performance that surpasses that of both pristine materials. The effect of the size of cations and anions for intercalation into GeMXene in different aqueous salt solutions is studied. GeMXene allows only cation intercalation, which is evidenced by the gravimetric electrochemical quartz crystal microbalance (EQCM) technique. The capacitive performance of the GeMXene is compared in neutral, acidic, and alkaline electrolytes to determine the best electrochemical performance. This unleashes the potential use of GeMXene heterostructure in different electrolytes for supercapacitors and batteries. This work will pave the way to explore the heterostructures of other 2D materials such as novel MXenes and functionalized germanane for highly energy-storage efficient systems, and beyond.
Description
Citation
Advanced functional materials. 2024, vol. 34, issue 7, 14 p.
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202308793
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202308793
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en