Mechanisms of catalytic reduction of CO2 with heme and nonheme metal complexes
- 주제(기타) Chemistry, Multidisciplinary
- 설명문(일반) [Fukuzumi, Shunichi; Lee, Yong-Min; Nam, Wonwoo] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea; [Fukuzumi, Shunichi] Meijo Univ, Grad Sch Sci & Engn, Nagoya, Aichi 4688502, Japan; [Lee, Yong-Min] Ewha Womans Univ, Res Inst Basic Sci, Seoul 03760, South Korea; [Ahn, Hyun S.] Yonsei Univ, Dept Chem, Seoul 03722, South Korea; [Nam, Wonwoo] Shaanxi Normal Univ, Sch Chem & Chem Engn, Xian 710119, Shaanxi, Peoples R China
- 등재 SCIE, SCOPUS
- 발행기관 ROYAL SOC CHEMISTRY
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000151394
- 본문언어 영어
- Published As http://dx.doi.org/10.1039/c8sc02220h
초록/요약
The catalytic conversion of CO2 into valuable chemicals and fuels has attracted increasing attention, providing a promising route for mitigating the greenhouse effect of CO2 and also meeting the global energy demand. Among many homogeneous and heterogeneous catalysts for CO2 reduction, this mini-review is focused on heme and nonheme metal complexes that act as effective catalysts for the electrocatalytic and photocatalytic reduction of CO2. Because metalloporphyrinoids show strong absorption in the visible region, which is sensitive to the oxidation states of the metals and ligands, they are suited for the detection of reactive intermediates in the catalytic CO2 reduction cycle by electronic absorption spectroscopy. The first part of this review deals with the catalytic mechanism for the one-electron reduction of CO2 to oxalic acid with heme and nonheme metal complexes, with an emphasis on how the formation of highly energetic CO2 is avoided. Then, the catalytic mechanism of two-electron reduction of CO2 to produce CO and H2O is compared with that to produce HCOOH. The effect of metals and ligands of the heme and nonheme complexes on the CO or HCOOH product selectivity is also discussed. The catalytic mechanisms of multi-electron reduction of CO2 to methanol (six-electron reduced product) and methane (eight-electron reduced product) are also discussed for both electrocatalytic and photocatalytic systems.
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