Support effects studied on model supported catalysts. Progress report, April 1, 1991--March 31, 1992 [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 1991.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 5 pages : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- We are studying model catalysts in which the active phase is deposited onto flat oxide substrates in order to understand how a catalyst is affected by its support. We have examined the following growth and stability of titania overlayers which had been vapor deposited onto a Rh foil; the growth of Pt films on ZnO(0001)Zn and O(0001)O and compared the results to those obtained for Pt on α-Al₂O₃(0001). Samples were prepared by vapor deposition of Pt onto flat substrates in ultra high vacuum, and metal coverages were measured using a quartz-crystal, film thickness monitor; the structure and CO adsorption properties of Pt films vapor deposited onto a ZrO₂(100) crystal; the deposition of Rh on a ZrO₂(100) crystal; The absorption of NO on Pt particles supported on CeO₂, α-Al₂O₃(0001), and the Zn- and O-polar surfaces of ZnO(0001). We have investigated supported oxides in order to understand the acidic properties that have been reported for monolayer oxides. Our first studies were of amorphous, silicalumina catalysts. Finally, we have also begun to prepare model supported oxides in order to be able to used spectroscopic methods to characterize the sites formed on these materials. Our first studies were of niobia deposition on oxidized Al films and on an α-Al₂O₃(0001) crystal.
- Report Numbers:
- E 1.99:doe/er/13350--8
doe/er/13350--8 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
11/01/1991.
"doe/er/13350--8"
"DE92011604"
Gorte, R.G.
Pennsylvania Univ., Philadelphia, PA (United States) - Type of Report and Period Covered Note:
- Annual; 01/01/1991 - 12/31/1992
- Funding Information:
- FG02-85ER13350
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