Nitrogen #
Doublet Separations #
No relevant non-S-orbital emissions
Common Overlaps for N 1s #
Mo 3p – Y 3s – Yb 4p – Tb 4s – Sc 2p – Ta 4p – Cd 3d – Ga LMM (Al Ka X-rays)
Common Binding Energies – Cu 2p #
Theory and Background #
Nitrogen is analysed using the N 1s peak, which is a simple, symmetrical emission with a Voight-type shape.
Experimental Advice #
Polymeric systems are known to suffer potential damage and reduction under X-ray illumination in UHV – so always be sure to record a scan at the start and end of an experiment when measuring new material types.[6,7]
Data Analysis Guidance #
Carbon Nitrides
Carbon nitrides can be fit with 3 species:
The major emission at 398.6 eV is ascribed to the C-N=C framework
The peak at 399.9 is the C3N heterocycle linkage
The higher energy peak at 400.9 eV are the terminal amine groups on the outside of the structure
References #
- Islam, M. J., et al. (2020). “The effect of metal precursor on copper phase dispersion and nanoparticle formation for the catalytic transformations of furfural.” Applied Catalysis B: Environmental: 119062. Read it online here.
- Miller, A. and G. Simmons (1993). “Copper by XPS.” Surface Science Spectra 2(1): 55-60. Read it online here.
- Vasquez, R. (1998). “Cu2O by XPS.” Surface Science Spectra 5(4): 257-261. Read it online here.
- Vasquez, R. (1998). “CuO by XPS.” Surface Science Spectra 5(4): 262-266. Read it online here.
- Biesinger, M. C. (2017). “Advanced analysis of copper X‐ray photoelectron spectra.” Surface and interface analysis 49(13): 1325-1334. Read it online here.
- Thøgersen, A., et al. (2008). “An experimental study of charge distribution in crystalline and amorphous Si nanoclusters in thin silica films.” Journal of Applied Physics 103(2): 024308. Read it online here.
- Moretti, G. (1998). “Auger parameter and Wagner plot in the characterization of chemical states by X-ray photoelectron spectroscopy: a review.” Journal of Electron Spectroscopy and Related Phenomena 95(2-3): 95-144. Read it online here.
- Batista, J., et al. (2001). “On the structural characteristics of γ-alumina-supported Pd–Cu bimetallic catalysts.” Applied Catalysis A: General 217(1-2): 55-68. Read it online here.
- Ghijsen, Jacques, et al. “Electronic structure of Cu 2 O and CuO.” Physical Review B 38.16 (1988): 11322. Read it online here.
