skip to main content

DOE PAGESDOE PAGES

Title: Mechanistic details for cobalt catalyzed photochemical hydrogen production in aqueous solution: Efficiencies of the photochemical and non-photochemical steps

The use of sunlight to drive chemical reactions that lead to the reduction of water to produce hydrogen is a potential avenue of solar energy utilization. There are many individual steps that take place in this process. This paper reports the investigation of a particular system that involves light absorbing molecules, electron donating agents and a catalyst for water reduction to hydrogen. We evaluated the efficiency of the light induced formation of a strong electron donor, the use of this donor to reduce the catalyst and finally the efficiency of the catalyst to produce hydrogen from water. From this, the sources of loss of efficiency could be clearly identified and used in the design of better systems to produce hydrogen from water.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [1]
  1. Tulane Univ., New Orleans, LA (United States)
  2. Univ. of Memphis, Memphis, TN (United States)
Publication Date:
OSTI Identifier:
1239681
Grant/Contract Number:
FG-02-96ER14617
Type:
Accepted Manuscript
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 52; Journal Issue: 9; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Research Org:
Tulane Univ., New Orleans, LA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY solar hydrogen production; solar fuels; charge separation; cobalt water reduction catalysts