Photochemical reduction of carbon dioxide using nickel tetraazamacrocycles

Journal Article · Thu Oct 04 00:00:00 EDT 1990 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100383a038· OSTI ID:5425252

Craig, C A; Otvos, J W; Calvin, M ^[1]; Spreer, L O ^[2]

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1. Lawrence Berkeley Laboratory, CA (USA)
2. Univ. of the Pacific, Stockton, CA (USA)

Irradiation at 440 nm of a photosensitizer, Ru(bpy){sub 3}{sup 2+} (bpy = 2,2{prime}-bipyridine), in an ascorbate-buffered solution at room temperature under 1 atm of carbon dioxide in the presence of either of the nickel(II) complexes (Ni(14-aneN{sub 4})){sup 2+} or (Ni(12-aneN{sub 4})){sup 2+} (14-aneN{sub 4} = 1,4,8,11-tetraazacyclotetradecane, 12-aneN{sub 4} = 1,4,7,10-tetraazacyclododecane), results in the reduction of carbon dioxide. The authors have measured the quantum efficiency of CO{sub 2} reduction, and they report that both of the Ni(II) macrocycles reduce carbon dioxide to carbon monoxide with similar quantum yields; (Ni(12-aneN{sub 4})){sup 2+} produces formate in addition to carbon monoxide. By using {sup 14}C-labeled carbon, they were able to identify carbon dioxide as the only source of carbon in both carbon monoxide and formate.

• OSTI ID: 5425252
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 94:20; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON ISOTOPES
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMPLEXES
CONVERSION
DATA
ENERGY CONVERSION
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
NICKEL COMPLEXES
NUCLEI
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
RADIOISOTOPES
REDUCTION
SOLAR ENERGY CONVERSION
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
YEARS LIVING RADIOISOTOPES