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Promotion effects on the synthesis of higher alcohols. Third quarterly report, March 1983-May 1983

Technical Report ·
OSTI ID:6283448
;
Measurements of the properties of Rh/sup I/(CO)/sub 2/ supported on Al/sub 2/O/sub 3/ have been made using transmission ir spectroscopy, mass spectroscopy and isotopic exchange. The following conclusions are reached: (1) the surface species is Rh/sup I/(CO)/sub 2/ (C/sub 2v/) since its spectroscopic properties are virtually identical to synthetic Rh/sup I/(CO)/sub 2/ species prepared by Knozinger, Thornton and Wolfe; in addition, the expected number of isotopic Rh/sup I/(CO)/sub 2/ species is observed by ir spectroscopy; (2) some of the Rh/sup I/(CO)/sub 2/ species exist primarily in pores which cause diffusion of CO to be the rate limiting process in the exchange reaction at the Rh/sup I/ site; and (3) the use of infrared spectroscopy to monitor isotopic exchange processes on supported metal surfaces can give valuable insights into the kinetic nature of the surface processes involved as well as insight into the structure of the species present.
Research Organization:
Pittsburgh Univ., PA (USA). Dept. of Chemical and Petroleum Engineering
DOE Contract Number:
FG22-82PC50810
OSTI ID:
6283448
Report Number(s):
DOE/PC/50810-T3; ON: DE83013467
Country of Publication:
United States
Language:
English

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Related Subjects

090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC EFFECTS
CHALCOGENIDES
DIFFUSION
ELEMENTS
EVEN-EVEN NUCLEI
HYDROXY COMPOUNDS
INFRARED SPECTRA
ISOTOPES
ISOTOPIC EXCHANGE
LIGHT NUCLEI
MASS SPECTROSCOPY
METALS
NUCLEI
ORGANIC COMPOUNDS
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
PLATINUM METALS
RHODIUM
SORPTION
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
SYNTHESIS
TRANSITION ELEMENTS