Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 18 October 1985:
Vol. 230. no. 4723, pp. 256 - 261
DOI: 10.1126/science.230.4723.256
Prev | Table of Contents | Next

Articles

Time-Resolved Electron Energy Loss Spectroscopy

T. H. Ellis 1, L. H. Dubois 2, S. D. Kevan 3, and M. J. Cardillo 4

1 Natural Sciences and Engineering Research Council of Canada postdoctoral fellow, AT&T Bell Laboratories, Murray Hill, New Jersey 07974.
2 Member of the technical staff in the Physical and Inorganic Chemistry Department, AT&T Bell Laboratories, Murray Hill, New Jersey 07974.
3 Member of the technical staff in the Condensed State Physics Department, AT&T Bell Laboratories, Murray Hill, New Jersey 07974.
4 Head of the Chemical Physics Department, AT&T Bell Laboratories, Murray Hill, New Jersey 07974.

Two recent instrumental improvements in high-resolution electron energy loss spectroscopy make possible the recording of complete surface vibrational spectra on the millisecond time scale. This is the first spectroscopic probe capable of directly measuring fundamental surface rate processes in real time with a resolution less than or equal to 1 millisecond. Such measurements are the key to understanding surface kinetics at the molecular level. This article summarizes experiments on the adsorption and decomposition of formic acid on Cu(100) to investigate the temperature and coverage dependence of the formate intermediate. Other results are cited that provide a detailed description of the decomposition of methanol on Ni(110). Also reported are direct measurements of the residence time of carbon monoxide on Cu(100) and the associated desorption kinetics.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Dynamics of Chemical Bonding Mapped by Energy-Resolved 4D Electron Microscopy.
F. Carbone, O.-H. Kwon, and A. H. Zewail (2009)
Science 325, 181-184
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)