Local chemical bonding and structural properties in Ti3AlC2 MAX phase and Ti3C2Tx MXene probed by Ti 1s x-ray absorption spectroscopy

@article{Magnuson2020LocalCB,
  title={Local chemical bonding and structural properties in 
Ti3AlC2
 MAX phase and 
Ti3C2Tx
 MXene probed by Ti 
1s
 x-ray absorption spectroscopy},
  author={Martin Magnuson and Lars-{\AA}ke N{\"a}slund},
  journal={arXiv: Materials Science},
  year={2020}
}
The chemical bonding within the transition-metal carbide materials MAX phase Ti3AlC2 and MXene Ti3C2Tx is investigated by X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectroscopies. MAX phases are inherently nanolaminated materials that consist of alternating layers of Mn+1Xn and monolayers of an A-element from the IIIA or IVA group in the periodic table, where M is a transition metal and X is either carbon or nitrogen. Replacing the A… 

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References

SHOWING 1-10 OF 67 REFERENCES
X-ray absorption linear dichroism at the Ti K edge of anatase TiO2 single crystals
Anatase TiO2 (a-TiO2) exhibits a strong X-ray absorption linear dichroism with the X-ray incidence angle in the pre-edge, the XANES and the EXAFS at the titanium K-edge. In the pre-edge region the
TI K-EDGE XANES STUDIES OF TI COORDINATION AND DISORDER IN OXIDE COMPOUNDS: COMPARISON BETWEEN THEORY AND EXPERIMENT
Experimental Ti $K$-edge x-ray-absorption near-edge structure (XANES) spectra for a variety of Ti(IV)-bearing crystalline oxide model compounds are compared with those calculated using the ab initio
In Situ XANES/XRD Study of the Structural Stability of Two-Dimensional Molybdenum Carbide Mo2CTx: Implications for the Catalytic Activity in the Water–Gas Shift Reaction
MXenes, a recently discovered family of two-dimensional (2D) materials, are promising catalysts and supports for applications in heterogeneous catalysis; however, the thermal stability of MXenes and
On the organization and thermal behavior of functional groups on Ti3C2 MXene surfaces in vacuum
The two-dimensional (2D) MXene Ti3C2T x is functionalized by surface groups (T x ) that determine its surface properties for, e.g. electrochemical applications. The coordination and thermal
Correlation between local vibrations and metal mass in AlB2-type transition-metal diborides.
TLDR
Data can be interpreted as a decoupling of the metal and boron vibrations observed in these transition-metal diborides (TMB2), a mechanism that may be responsible for the significant reduction of the superconducting transition temperature observed inThese systems with respect to the parent MgB2 compound.
Determination of Ti coordination from pre-edge peaks in Ti K-edge XANES
The pre-edge peaks of Ti K-edge XANES have been widely used in determining Ti coordination in amorphous materials and in crystals despite the fact that coordination is not the only factor that the
MAX Phases: Properties of Machinable Ternary Carbides and Nitrides
INTRODUCTION Introduction History of the MAX Phases STRUCTURE, BONDING, AND DEFECTS Introduction Atom Coordinates, Stacking Sequences, and Polymorphic Transformations Lattice Parameters, Bond
First-principles calculations of X-ray absorption spectra at the K-edge of 3d transition metals: an electronic structure analysis of the pre-edge.
TLDR
It is shown that DFT-LDA methods enable us to reproduce satisfactorily the experimental features and to understand the nature of the electronic transitions involved in the pre-edge region.
...
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