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Iodide‐Photocatalyzed Reduction of Carbon Dioxide to Formic Acid with Thiols and Hydrogen Sulfide
Author(s) -
Berton Mateo,
Mello Rossella,
GonzálezNúñez María Elena
Publication year - 2016
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201601285
Subject(s) - chemistry , formic acid , inorganic chemistry , electrochemical reduction of carbon dioxide , iodide , carbon dioxide , hydrogen iodide , photocatalysis , hydrogen sulfide , aqueous solution , photochemistry , carbon fixation , sulfide , carbon monoxide , hydrogen , catalysis , sulfur , organic chemistry
Abstract The photolysis of iodide anions promotes the reaction of carbon dioxide with hydrogen sulfide or thiols to quantitatively yield formic acid and sulfur or disulfides. The reaction proceeds in acetonitrile and aqueous solutions, at atmospheric pressure and room temperature by irradiation using a low‐pressure mercury lamp. This transition‐metal‐free photocatalytic process for CO 2 capture coupled with H 2 S removal may have been relevant as a prebiotic carbon dioxide fixation.