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Title: CO2 hydrogenation to formate and methanol as an alternative to photo- and electrochemical CO2 reduction

In this study, carbon dioxide is one of the end products of combustion, and is not a benign component of the atmosphere. The concentration of CO2 in the atmosphere has reached unprecedented levels and continues to increase owing to an escalating rate of fossil fuel combustion, causing concern about climate change and rising sea levels. In view of the inevitable depletion of fossil fuels, a possible solution to this problem is the recycling of carbon dioxide, possibly captured at its point of generation, to fuels. Researchers in this field are using solar energy for CO2 activation and utilization in several ways: (i) so-called artificial photosynthesis using photo-induced electrons; (ii) bulk electrolysis of a CO2 saturated solution using electricity produced by photovoltaics; (iii) CO2 hydrogenation using solar-produced H2; and (iv) the thermochemical reaction of metal oxides at extremely high temperature reached by solar collectors. Since the thermodynamics of CO2 at high temperature (> 1000 ºC) are quite different from those near room temperature, only chemistry below 200 ºC is discussed in this review.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [3]
  1. Dalian Univ., Panjin (China)
  2. National Inst. of Advanced Industrial Science and Technology, Ibaraki (Japan); JST, ACT-C, Saitama (Japan)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
OSTI Identifier:
1214520
Report Number(s):
BNL--108316-2015-JA
Journal ID: ISSN 0009-2665; R&D Project: CO026; KC0304030
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Chemical Reviews
Additional Journal Information:
Journal Name: Chemical Reviews; Journal ID: ISSN 0009-2665
Publisher:
American Chemical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY