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MXenes for energy storage | ScienceDaily

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Chemistry ニュース

Batteries,Biochemistry,Materials Science

A new method in spectromicroscopy significantly improves the study of chemical reactions at the nanoscale, both on surfaces and inside layered materials.

Scanning X-ray microscopy at MAXYMUS beamline of BESSY II enables the investigation of chemical species adsorbed on the top layer or intercalated within the MXene electrode with high chemical sensitivity.

The team of Dr. Tristan Petit now made a significant progress in MXene characterization, as described in their recent publication. They utilized SXM to investigate the chemical bonding of Ti=O, OH, F, Cl), with high spatial and spectral resolution. The novelty in this work is to combine simultaneously two detection modes, transmission and electron yield, enabling different probing depths.

Furthermore, the application of SXM in analyzing MXene-based materials in lithium-ion batteries yielded valuable insights into changes in MXene chemistry after battery cycling. As Faidra Amargianou explains,"The bulk of MXene electrode remains stable during electrochemical cycling with signs of possible Liintercalation. Electrolyte does not lead to degradation of the MXene and lays on top of the MXene electrode.

 

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MXenes for energy storage: Chemical imaging more than just surface deepA new method in spectromicroscopy significantly improves the study of chemical reactions at the nanoscale, both on surfaces and inside layered materials.
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