Ionic Liquid Co-catalyzed Artificial Photosynthesis of CO

The conversion of CO 2 to chemical feedstocks is of great importance, which yet requires the activation of thermodynamically-stable CO 2 by metal catalysts or metalloenzymes. Recently, the development of metal-free organocatalysts for use in CO 2 activation under ambient conditions has opened new av...

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Bibliographic Details
Published in:Scientific reports 2013-01, Vol.3 (1), p.1056, Article 1056
Main Authors: Lin, Jinliang, Ding, Zhengxin, Hou, Yidong, Wang, Xinchen
Format: Article
Language:English
Subjects:
639/638/439/943
639/638/440/947
639/638/77/888
639/638/77/889
Anions
Atmospheric chemistry
Carbon dioxide
Carbon fixation
Catalysis
Catalysts
Cations
Humanities and Social Sciences
Ions
multidisciplinary
Photochemicals
Photosynthesis
Science
Solvents
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Summary:The conversion of CO 2 to chemical feedstocks is of great importance, which yet requires the activation of thermodynamically-stable CO 2 by metal catalysts or metalloenzymes. Recently, the development of metal-free organocatalysts for use in CO 2 activation under ambient conditions has opened new avenues for carbon fixation chemistry. Here, we report the capture and activation of CO 2 by ionic liquids and coupling to photoredox catalysis to synthesize CO. The chemical nature of anions and the organic functional groups on the imidazolium cations of ionic liquids, together with reaction medium have been demonstrated to have remarkable effects on the activation and reduction of CO 2 . Considering almost unlimited structural variations of ionic liquids by a flexible combination of cations and anions, this photochemical pathway provides unique opportunities for carbon fixation by rationally-designed chemical systems via linking ionic liquid based materials with chromorphoric molecules in tackling the great challenges of artificial photosynthesis.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep01056