Molecular Catalysts for CO2 Fixation/Reduction
Society is currently confronted with the continuing environmental problems of global warming and ocean acidification related to increasing CO2 emission from anthropogenic sources. These environmental issues are also connected to the inevitable energy supply shortage due to the eventual depletion of...
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Ishida, Hitoshi edt Molecular Catalysts for CO2 Fixation/Reduction Frontiers Media SA 2020 1 electronic resource (164 p.) text txt rdacontent computer c rdamedia online resource cr rdacarrier Society is currently confronted with the continuing environmental problems of global warming and ocean acidification related to increasing CO2 emission from anthropogenic sources. These environmental issues are also connected to the inevitable energy supply shortage due to the eventual depletion of fossil fuel sources. As a solution, the technology of recycling CO2 into useful organic materials continues to attract attention. This methodology can be categorized into two main parts: CO2 fixation and CO2 reduction. For both reactions, molecular catalysts based on transition metal coordination complexes and organometallic compounds have been developed and examined. Molecular catalysts can be characterized and iteratively improved at the molecular level through spectroscopic experiments and the isolation of intermediate species, which is particularly advantageous in comparison to heterogeneous catalysts. The fixation of CO2 into organic compounds to form a carbon-carbon bond by using organometallic catalysts is a direct methodology for CO2 utilization and represents the potential reversible storage of electrochemical energy in chemical bonds. The resultant carboxylic acid-containing compounds formed as the initial products can be subsequently converted into other organic materials, even products with new chiral centers. The reduction of CO2 by two electrons (often with a proton donor as a co-substrate) yields carbon monoxide (CO) and formic acid (HCOOH), which can be further converted to useful chemicals. Reduction reactions involving more than two electrons and two protons can produce formaldehyde (HCHO), methanol (CH3OH), and methane (CH4), which are also desirable as chemicals and fuels. For molecular electrocatalysts, more negative potentials than the equilibrium ones for CO2 reduction are generally required; the difficulty is that the equilibrium potentials for CO2 reduction are generally negative of the equilibrium potential for proton reduction to produce H2, representing a competing thermodynamically favored process. A complementary approach to an electrochemical one is to mediate CO2 reduction with photo-induced electron transfer reactions. Photo- and electrocatalytic CO2 reduction can be used to achieve artificial photosynthesis, or the production of commodity chemicals and fuels with renewable energy inputs originating from solar sources. This Research Topic covers the molecular catalysts based on coordination and organometallic compounds for CO2 fixation/reduction. It includes chemical, electrochemical, and photochemical reactions. It also covers systematic studies of reaction mechanisms and the spectroscopic characterization of catalytic intermediates. Molecular catalysts for CO2 fixation/reduction used as co-catalysts with heterogeneous catalytic systems are also included. Non-precious and abundant transition metal catalysts for CO2 fixation/reduction are important for future industrial applications as core components of the next generation of energy technologies. English Science: general issues bicssc CO2 reduction CO2 fixation electrocatalysis photocatalysis artificial photosynthesis 2-88963-622-4 Machan, Charles edt Robert, Marc edt Iwasawa, Nobuharu edt Ishida, Hitoshi oth Machan, Charles oth Robert, Marc oth Iwasawa, Nobuharu oth |
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English |
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author2 |
Machan, Charles Robert, Marc Iwasawa, Nobuharu Ishida, Hitoshi Machan, Charles Robert, Marc Iwasawa, Nobuharu |
author_facet |
Machan, Charles Robert, Marc Iwasawa, Nobuharu Ishida, Hitoshi Machan, Charles Robert, Marc Iwasawa, Nobuharu |
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h i hi c m cm m r mr n i ni |
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HerausgeberIn HerausgeberIn HerausgeberIn Sonstige Sonstige Sonstige Sonstige |
title |
Molecular Catalysts for CO2 Fixation/Reduction |
spellingShingle |
Molecular Catalysts for CO2 Fixation/Reduction |
title_full |
Molecular Catalysts for CO2 Fixation/Reduction |
title_fullStr |
Molecular Catalysts for CO2 Fixation/Reduction |
title_full_unstemmed |
Molecular Catalysts for CO2 Fixation/Reduction |
title_auth |
Molecular Catalysts for CO2 Fixation/Reduction |
title_new |
Molecular Catalysts for CO2 Fixation/Reduction |
title_sort |
molecular catalysts for co2 fixation/reduction |
publisher |
Frontiers Media SA |
publishDate |
2020 |
physical |
1 electronic resource (164 p.) |
isbn |
2-88963-622-4 |
illustrated |
Not Illustrated |
work_keys_str_mv |
AT ishidahitoshi molecularcatalystsforco2fixationreduction AT machancharles molecularcatalystsforco2fixationreduction AT robertmarc molecularcatalystsforco2fixationreduction AT iwasawanobuharu molecularcatalystsforco2fixationreduction |
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(CKB)5400000000041406 (oapen)https://directory.doabooks.org/handle/20.500.12854/73764 (EXLCZ)995400000000041406 |
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cr |
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Molecular Catalysts for CO2 Fixation/Reduction |
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noLinkedField noLinkedField noLinkedField noLinkedField noLinkedField noLinkedField noLinkedField |
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The resultant carboxylic acid-containing compounds formed as the initial products can be subsequently converted into other organic materials, even products with new chiral centers. The reduction of CO2 by two electrons (often with a proton donor as a co-substrate) yields carbon monoxide (CO) and formic acid (HCOOH), which can be further converted to useful chemicals. Reduction reactions involving more than two electrons and two protons can produce formaldehyde (HCHO), methanol (CH3OH), and methane (CH4), which are also desirable as chemicals and fuels. For molecular electrocatalysts, more negative potentials than the equilibrium ones for CO2 reduction are generally required; the difficulty is that the equilibrium potentials for CO2 reduction are generally negative of the equilibrium potential for proton reduction to produce H2, representing a competing thermodynamically favored process. A complementary approach to an electrochemical one is to mediate CO2 reduction with photo-induced electron transfer reactions. Photo- and electrocatalytic CO2 reduction can be used to achieve artificial photosynthesis, or the production of commodity chemicals and fuels with renewable energy inputs originating from solar sources. This Research Topic covers the molecular catalysts based on coordination and organometallic compounds for CO2 fixation/reduction. It includes chemical, electrochemical, and photochemical reactions. It also covers systematic studies of reaction mechanisms and the spectroscopic characterization of catalytic intermediates. Molecular catalysts for CO2 fixation/reduction used as co-catalysts with heterogeneous catalytic systems are also included. 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