English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Vacuum microbalance investigations on the pressure and temperature dependence of solid/gas reactions

Grunze, M., & Hirschwald, W. (1975). Vacuum microbalance investigations on the pressure and temperature dependence of solid/gas reactions. In C. Eyraud (Ed.), Progress in vacuum microbalance techniques (pp. 233-244). London: Heyden and Son.

Item is

Files

show Files
hide Files
:
Eyraud_1975_ProgVacuumMicrobalanceTechniques_Vol.3_233.pdf (Any fulltext), 702KB
 
File Permalink:
-
Name:
Eyraud_1975_ProgVacuumMicrobalanceTechniques_Vol.3_233.pdf
Description:
-
OA-Status:
Visibility:
Restricted (Max Planck Institute for Medical Research, MHMF; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Grunze, M.1, Author           
Hirschwald, W., Author
Affiliations:
1Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_2364731              

Content

show
hide
Free keywords: -
 Abstract: The pressure and temperature dependdence of the evaporation-analogous heterogeneous reaction ZnO(s) + CO(v), H2(v) → Zn(v) + CO2(v), H2O(v) was studied with a vacuum microbalance apparatus. The reaction rate as a function of pressure, temperature and surface structure of the solid was determined. It was found that the order n and the activation energy EA depend on temperature and pressure. The results can be explained by the assumption of different reaction mechanisms. At high temperatures and small pressures the activation of the Zn–O bond on the surface of the solid is rate determining. For high temperatures and hogh pressures the reflection of the reaction products Zn(v) and Co2(v) from the gas phase on the surface auses the change in the order n and hast to be considered. At low temperature the desorption of the products become rate determining. Experiments with Co/argon mixtures confirm the proposed interpretation for higher pressures.

Details

show
hide
Language(s): eng - English
 Dates: 1975
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Progress in vacuum microbalance techniques
Source Genre: Book
 Creator(s):
Eyraud, C., Editor
Escoubes, M., Author
Affiliations:
-
Publ. Info: London : Heyden and Son
Pages: - Volume / Issue: 3 Sequence Number: - Start / End Page: 233 - 244 Identifier: ISBN: 0-85501-076-2