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Implementation of Atomic-Scale Chemical Imaging via Combination of Scanning Tunneling and Electron Energy Loss Spectroscopies


EMSL Project ID
47661

Abstract

The project aims to establish an essential instrumental capability of the inelastic electron tunneling spectroscopy (IETS) on a new EMSL’s low-temperature scanning tunneling microscope (LT STM). This capability will provide spectroscopic information about individual species involved in surface-mediated reactions at the atomic level. There is a great need to establish such experimental tools, because it will allow spatially resolved studying of reactions at the sub-nanometer scale on model catalytic systems that have not been accomplished to date. The new EMSL ultra-high vacuum (UHV) system with the state-of-the-art (5 K) LT STM instrument will be modified for IETS implementation. In addition, the combination of LT STM with molecular beam instrument will allow preparation of well-defined, chemically functionalized STM probes capable of intramolecular and chemically specific imaging.

Project Details

Start Date
2012-08-09
End Date
2013-08-11
Status
Closed

Team

Principal Investigator

Igor Lyubinetsky
Institution
Pacific Northwest National Laboratory

Co-Investigator(s)

Zdenek Dohnalek
Institution
Pacific Northwest National Laboratory

Team Members

Rentao Mu
Institution
Pacific Northwest National Laboratory

Michael Henderson
Institution
Pacific Northwest National Laboratory

Related Publications

Henderson MA, M Shen, Z Wang, and I Lyubinetsky. 2013. "Characterization of the Active Surface Species Responsible for UV-Induced Desorption of O2 from the Rutile TiO2(110) Surface." The Journal of Physical Chemistry C 2013 117 (11). 5774-5784 doi: 10.1021/jp312161y
Lin X, Z Wang, I Lyubinetsky, BD Kay, and Z Dohnalek. 2013. "Interaction of CO2 with Oxygen Adatoms on Rutile TiO2(110)." Physical Chemistry Chemical Physics. PCCP 15(17):6190-6195. doi:10.1039/C3CP44040K
Wang Z, NA Deskins, MA Henderson, and I Lyubinetsky. 2012. "Inhibitive Influence of Oxygen Vacancies for Photoactivity on TiO2(110)." Physical Review Letters 109(26):Article No. 266103. doi:10.1103/PhysRevLett.109.266103