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Title:
ELECTROCHEMICAL REDUCTION OF CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2016/136433
Kind Code:
A1
Abstract:
Provided are: a method for selectively reducing CO2 to carbon monoxide or formic acid using electrical energy; a catalyst used therefor; and an electrochemical reduction system. A method for manufacturing carbon monoxide or formic acid from carbon dioxide by electrochemical reduction characterized in comprising steps (a) and (b). (a) A step for reacting carbon dioxide with a metal complex represented by general formula (1) (in the formula, M represents rhenium, manganese, ruthenium or iron; X represents OR1, SR1, NR2R3R4 or PX1X2X3; Y represents CO, OR1, SR1, NR2R3R4 or PX1X2X3; ring A and ring B are the same or different and represent nitrogen atom-containing heterocyclic rings that may have a substituent; R1 represents a hydrocarbon group that may have a substituent; one to three of R2, R3 and R4 can be the same or different and represent hydrocarbon groups that may have a substituent, the remainder representing a hydrogen atom; one to three of X1, X2 and X3 can be the same or different and represent hydrocarbon groups that may have a substituent or a hydrocarbon oxy group that may have a substituent, the remainder representing a hydrogen atom or hydroxyl group.) (b) A step for applying voltage on the reaction product of carbon dioxide with the metal complex represented by general formula (1).

Inventors:
ISHITANI OSAMU (JP)
Application Number:
PCT/JP2016/053558
Publication Date:
September 01, 2016
Filing Date:
February 05, 2016
Export Citation:
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Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
International Classes:
B01J31/22; C01B32/40; C07D213/22; C07D213/61; C07D213/68; C07F13/00; C25B3/25; C25B9/19
Domestic Patent References:
WO2012091045A12012-07-05
Foreign References:
JP2014062038A2014-04-10
JP2011082144A2011-04-21
Other References:
MORIMOTO TATSUKI ET AL.: "CO2 Capture by a Rhenium(I) Complex with the Aid of Triethanolamine", J AM CHEM SOC, vol. 135, no. 45, 13 November 2013 (2013-11-13), pages 16825 - 16828
HORI H ET AL.: "Efficient photocatalytic C02 reduction using [Re(bpy) (CO)3 {P (OEt) 3} ]+", J PHOTOCHEM PHOTOBIOL A CHEM, vol. 96, no. 1/3, 31 May 1996 (1996-05-31), pages 171 - 174
KOHEI OKAMOTO ET AL.: "Photocatalytic C02 Reduction Using Manganese(I) Bipyridine Carbonyl Complexes with Phosphorous Ligands", 94TH ANNUAL MEETING OF THE CHEMICAL SOCIETY OF JAPAN IN SPRING KOEN YOKOSHU, vol. 94th, no. 2, 12 March 2014 (2014-03-12), pages 434
STOR G J ET AL.: "The Remarkable Photochemistry of fac-XMn (CO) 3 (alpha-diimine) (X=Halide): Formation of Mn2 (CO) 6 (alpha-diimine) 2 via the mer Isomer and Photocatalytic Substitution of X- in the Presence of PR3", ORGANOMETALLICS, vol. 13, no. 7, July 1994 (1994-07-01), pages 2641 - 2650
KOBAYASHI KATSUAKI ET AL.: "Selective Generation of Formamides through Photocatalytic C02 Reduction Catalyzed by Ruthenium Carbonyl Compounds", ANGEW CHEM INT ED, vol. 53, no. 44, 27 October 2014 (2014-10-27), pages 11813 - 11817
Attorney, Agent or Firm:
THE PATENT CORPORATE BODY ARUGA PATENT OFFICE (JP)
Patent business corporation Alga patent firm (JP)
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