Oxidation, reduction, and isomerization of allyl alcohol and 1-propanol over Cu[sub 2]O(100)

Journal Article · Thu Jan 21 00:00:00 EST 1993 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100105a019· OSTI ID:6305907

Schulz, K H; Cox, D F ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg (United States)

The reactivity of allyl alcohol and 1-propanol has been studied with TDS and XPS on the polar, Cu[sup +]-terminated, Cu[sub 2]O(100) surface. Allyl alcohol reacts on the (100) surface to give selective and nonselective oxidation products (acrolein, CO, CO[sub 2], H[sub 2]O), an isomerization product (propionaldehyde), and a reduction product (propene). 1-Propanol also reacts on the (100) surface to give selective and nonselective oxidation products (acrolein, propionaldehyde, CO, CO[sub 2], H[sub 2]O) and a reduction product (propene). Both alcohols dissociatively adsorb to form alkoxides. The alkoxide species undergo hydride elimination on the carbon [alpha] to the oxygen to form the corresponding aldehydes. The acrolein and propionaldehyde formed from the alcohols are linked by a common surface enolate intermediate which explains the similarity in C[sub 3] products observed from the two alcohols. A low-temperature reaction to propene is attributed to pathways involving C-O bond scission from unsaturated surface oxygenates to give a surface allyl. Hydrogenation of the resulting allyl produces propene at low temperature. 28 refs., 6 figs., 2 tabs.

• OSTI ID: 6305907
• Journal Information: Journal of Physical Chemistry; (United States), Vol. 97:3; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALCOHOLS
ISOMERIZATION
OXIDATION
REDUCTION
COPPER OXIDES
CATALYTIC EFFECTS
ACROLEIN
ALDEHYDES
ALKOXIDES
CARBON
DESORPTION
HYDROGENATION
MILLER INDICES
OXYGEN
REACTIVITY
SURFACE PROPERTIES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
ELEMENTS
HYDROXY COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SORPTION
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties