English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

The surface state and catalytic properties of Pt black after O2-H2 cycles

MPS-Authors
/persons/resource/persons21936

Paál,  Zoltán
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21498

Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

429593.pdf
(Any fulltext), 747KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Paál, Z., Schlögl, R., & Ertl, G. (1992). The surface state and catalytic properties of Pt black after O2-H2 cycles. Catalysis Letters, 12(4), 331-344. doi:10.1007/BF00765062.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-2259-F
Abstract
XPS and UPS of a Pt black catalyst after customary H2-O2 regeneration shows considerable amounts of residual C as well as surface OH/H2O species. Surface C could not be removed even by O2 at 800 K. Oxygenates are stable even after H2 treatment up to 750 K. Their chemical state has been tentatively identified by comparing XPS and UPS results. Catalytic transformations of n-hexane on Pt black treated analogously is reported and the effect of surface species on catalytic properties discussed. Possible consequences of the presence of stable surface OH/H2O species on H2-O2 titrations are mentioned.