Accession Number:

ADA056535

Title:

Chemisorption on Perfect Surfaces and Structural Defects.

Descriptive Note:

Technical rept.,

Corporate Author:

ILLINOIS UNIV AT URBANA-CHAMPAIGN COORDINATED SCIENCE LAB

Personal Author(s):

• Liu,Ruichen

Report Date:

1977-10-01

Pagination or Media Count:

346.0

Abstract:

Chemisorption of nitrogen and hydrogen on densely packed planes of tungsten, molybdenum, iridium, and rhenium has been studied by probe-hole field emission microscopy. Adsorption on perfect planes, as well as on planes containing structural defects, has been investigated. The results can be interpreted by the promotion of chemisorption at structural defects on smooth surfaces. A model, which can account for our results as well as observations on macroscopic surfaces, is presented. Author

Descriptors:

• *MOLYBDENUM
• *NITROGEN
• *HYDROGEN
• *TUNGSTEN
• *CHEMISORPTION
• *RHENIUM
• *IRIDIUM
• THESES
• MICROSCOPY
• SURFACES
• FIELD EMISSION
• CRYSTAL DEFECTS
• SURFACE REACTIONS
• FIELD ION MICROSCOPY

Subject Categories:

• Physical Chemistry
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE