NQR-NMR studies of higher alcohol synthesis Cu-Co catalysts. Quarterly technical progress report, June 15, 1994--September 15, 1994

Technical Report · Wed Mar 01 00:00:00 EST 1995

OSTI ID:10128786

Donatto, U A; Hoard, T L; Murty, A N

The selectivity and conversion efficiency of the catalyst are reported to be governed by inter-metallic ratios of the three elements. High yields of methanol in copper-rich field, hydrocarbons in cobalt-rich field and mixed alcohols in the intermediate range were observed. The basic mechanism, the extent and effect of inter-metallic interactions, or the role and function of chromium still remain unclear. To examine the correspondence between the catalytic and magnetic behavior of the catalyst, the author has investigated the Zero-field Nuclear Magnetic Resonance spectra and Hysteresis character of a series of Cu/Co/Cr trimetallics with Cu/Co ratio varying from 0.2 to 8.0. The magnetic moment of the catalyst system is very low for Cu/Co < 1.5, dramatically increases when 1.5 < Cu/Co < 5.0 and drops for Cu/Co > 5.0. The NMR results indicate that chromium serves as a support and inhibits any strong intermetallic interaction between copper and cobalt.

• Research Organization: Grambling State Univ., LA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: FG22-89PC89761
• OSTI ID: 10128786
• Report Number(s): DOE/PC/89761-T10; ON: DE95007926; TRN: 95:002646
• Resource Relation: Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
10 SYNTHETIC FUELS
COPPER COMPOUNDS
STRUCTURAL CHEMICAL ANALYSIS
COBALT COMPOUNDS
PROGRESS REPORT
NUCLEAR QUADRUPOLE RESONANCE
NUCLEAR MAGNETIC RESONANCE
CATALYSTS
METHANOL
ALCOHOLS
CHEMICAL PREPARATION
400201
100200
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
PRODUCTION