Back to Search
Start Over
ATOMIC-COORDINATION-IMPERFECTION-ENHANCED Pd-3d[sub 5/2] CRYSTAL BINDING ENERGY.
- Source :
-
Surface Review & Letters . Dec2003, Vol. 10 Issue 6, p1009-1013. 5p. - Publication Year :
- 2003
-
Abstract
- Crystal binding energy of a core electron at the 3d[sub 5/2] level of a Pd atom has been estimated to be -4.0±0.02 eV by decoding the X-ray photoelectron spectra obtained from both the Pd surfaces and the Pd nanoparticles. Findings indicate that the increase in the binding energy originates from the effect of coordination number (CN) imperfection of atoms at a flat surface or at the curved surface of a nanosolid. The CN imperfection shortens the remaining bonds of the lower-coordinated atoms spontaneously associated with bond energy increase, which perturbs the Hamiltonian of an extended solid and hence shifts the core level to higher binding energy. Therefore, the significance of atomic CN imperfection cannot be overlooked in dealing with a low-dimensional system, and the recent bond-order–length–strength (BOLS) correlation mechanism is essentially adequate, for the significance of atomic CN imperfection. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTALS
*ELECTRONS
*PHOTOELECTRONS
*NANOPARTICLES
*FORCE & energy
*ATOMS
Subjects
Details
- Language :
- English
- ISSN :
- 0218625X
- Volume :
- 10
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Surface Review & Letters
- Publication Type :
- Academic Journal
- Accession number :
- 12430505
- Full Text :
- https://doi.org/10.1142/S0218625X03005724