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Title: Photocatalytic CO2 Reduction by Trigonal-Bipyramidal Cobalt(II) Polypyridyl Complexes: The Nature of Cobalt(I) and Cobalt(0) Complexes upon Their Reactions with CO2, CO, or Proton

Journal Article · · Inorganic Chemistry
 [1];  [2]; ORCiD logo [2];  [2];  [3]; ORCiD logo [3];  [3]; ORCiD logo [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Saitama Univ., Saitama (Japan)
  2. Saitama Univ., Saitama (Japan)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
+ Show Author Affiliations

Trigonal-bipyramidal Co(II) complexes are used for photochemical carbon dioxide (CO2) reduction with Ru(bpy)32+ as a photosensitizer, tri-p-tolylamine (TTA) as a reversible quencher, and triethylamine (TEA) as a sacrificial electron donor to produce carbon monoxide and dihydrogen. Here, the CO2 reduction is slow because of the large structural changes, spin flipping in the cobalt catalytic intermediates, and an uphill reaction for reduction to catalytically active Co(0) by the photoproduced [Ru(bpy)3]+.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1433980
Report Number(s):
BNL-203518-2018-JAAM
Journal Information:
Inorganic Chemistry, Vol. 57, Issue 9; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

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Cited By (5)

CO 2 reduction using paper-derived carbon electrodes modified with copper nanoparticles journal January 2019
Reduction of CO 2 by a masked two-coordinate cobalt( i ) complex and characterization of a proposed oxodicobalt( ii ) intermediate journal January 2019
From non-innocent to guilty: on the role of redox-active ligands in the electro-assisted reduction of CO 2 mediated by a cobalt( ii )-polypyridyl complex journal January 2020
Effect of metal ion substitution on the catalytic activity of a pentanuclear metal complex journal January 2020
Heterogeneous photocatalytic performances of CO 2 reduction based on the [Emim]BF 4 + TEOA + H 2 O system journal January 2019

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