Copper Complex for Capturing Carbon Dioxide

摘要

A composition and method are disclosed for capturing CO2. A pollutant/greenhouse gas can be converted into a valuable organic compound using a nontoxic reducing agent. CO2 may be economically captured from the atmosphere, from products of combustion, or from byproducts of various chemical processes. The method reduces CO2 in a three-step reaction cycle, in which a binuclear metal-organic compound converts CO2 to oxalate in a redox cycle under mild conditions.

主权项

1. A binuclear compound having the structure [Cu2L2(μ-C2O4)p]Xnm+ wherein:
p is 0 or 1; n is 0, 2, or 4; m is 0, 2, or 4; X is a monovalent anion; wherein if n is 2 or 4, the various X anions may be the same or different; and L is: wherein: R1 is chosen from the group consisting of H, C1-C4 substituted or unsubstituted alkyl, —NH2, —OH, and —CO2H; R2, R3, and R4 are independently chosen from the group consisting of H, substituted or unsubstituted C1-C8 alkyl, substituted or unsubstituted aryl, —OH, —OCnH2n−1, —O(CH2CH2O)kCH3, —O(CH2CH2O)kC2H5, N(CH3)3+, —SO3−, —NO2, and —CN; wherein k=1-8; R5, R6, R7, and R8 are independently chosen from the group consisting of H, —OCH3, —N(CH3)2, halide, —NO2, —CN, substituted or unsubstituted C1-C8 alkyl, substituted or unsubstituted aryl, —OH, —OCjH2j−1, —O(CH2CH2O)jCH3, —O(CH2CH2O)jC2H5, —N(CH3)3+, —SO3−, —NO2, and —CN (j=1-8).