English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ion and velocity map imaging for surface dynamics and kinetics.

Harding, D. J., Neugebohren, J., Hahn, H., Auerbach, D. J., Kitsopoulos, T. N., & Wodtke, A. M. (2017). Ion and velocity map imaging for surface dynamics and kinetics. Journal of Chemical Physics, 147(1): 013939. doi:10.1063/1.4983307.

Item is

Files

show Files
hide Files
:
2452694.pdf (Publisher version), 11MB
Name:
2452694.pdf
Description:
-
OA-Status:
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Harding, D. J.1, Author           
Neugebohren, J.1, Author           
Hahn, H.1, Author           
Auerbach, D. J.1, Author           
Kitsopoulos, T. N.1, Author           
Wodtke, A. M.1, Author           
Affiliations:
1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              

Content

show
hide
Free keywords: -
 Abstract: We describe a new instrument that uses ion imaging to study molecular beam-surface scattering and surface desorption kinetics, allowing independent determination of both residence times on the surface and scattering velocities of desorbing molecules. This instrument thus provides the capability to derive true kinetic traces, i.e., product flux versus residence time, and allows dramatically accelerated data acquisition compared to previous molecular beam kinetics methods. The experiment exploits non-resonant multiphoton ionization in the near-IR using a powerful 150-fs laser pulse, making detection more general than previous experiments using resonance enhanced multiphoton ionization. We demonstrate the capabilities of the new instrument by examining the desorption kinetics of CO on Pd(111) and Pt(111) and obtain both pre-exponential factors and activation energies of desorption. We also show that the new approach is compatible with velocity map imaging.

Details

show
hide
Language(s): eng - English
 Dates: 2017-05-172017-07-07
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.4983307
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Chemical Physics
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: 7 Volume / Issue: 147 (1) Sequence Number: 013939 Start / End Page: - Identifier: -