Structural water engaged disordered vanadium oxide nanosheets for high capacity aqueous potassium-ion storage

May/25/2017
TESCAN FIB-SEM LYRA3 used for research in energy storage devices
One of the advantages of using potassium ions in energy storage devices is the excellent transport properties compared to other alkali ions. However, the large radius of potassium ions causes structural distortion and instabilities in electrodes. In this work, it is found that water induces structural rearrangements of the vanadium-oxygen octahedra and enhances stability of the highly disordered potassium-intercalated vanadium oxide nanosheets. The characterisation of the samples included SEM imaging and energy dispersive X-ray spectroscopy (EDS). These two techniques were implemented with the TESCAN FIB-SEM LYRA3 GMU equipped with an EDS detector.

a) TEM image. (b) SEM image of a drop casted coating of nanosheets with a 2μm scale bar. (c) Synchrotron XRD spectra.
a) TEM image. (b) SEM image of a drop casted coating of nanosheets with a 2μm scale bar. (c) Synchrotron XRD spectra.


Original source

Related news

Because everything needs to be just right
SAFINA, a.s. a company located right at the heart of Europe has developed...
Jul/26/2017
Sales newsPR news
TESCAN at the MMC 2017
We would like to extend our thanks to all customers and business partners...
Jul/11/2017
PR news
Understanding variability of metal additive parts
TESCAN Ga FIB-SEM LYRA3 used for preparation of electron-transparent TEM...
Jun/16/2017
PR news
TESCAN presence in the South-East Asian high-tech
TESCAN GAIA in Fabrinet – A Trusted Manufacturing Partner of the World...