Electrocatalytic CO2 Conversion to Oxalate by a Copper Complex

被引：474

作者：

Angamuthu, Raja ^{[1
]}

Byers, Philip ^{[1
]}

Lutz, Martin ^{[2
]}

Spek, Anthony L. ^{[2
]}

Bouwman, Elisabeth ^{[1
]}

机构：

[1] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands

[2] Univ Utrecht, Bijvoet Ctr Biomol Res Crystal & Struct Chem, NL-3584 CH Utrecht, Netherlands

来源：

SCIENCE | 2010年 / 327卷 / 5963期

关键词：

CARBON-DIOXIDE; FIXATION; TRANSFORMATION; SPECTROSCOPY; REDUCTION; CATALYSIS; BINDING; ZINC;

D O I：

10.1126/science.1177981

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Global warming concern has dramatically increased interest in using CO2 as a feedstock for preparation of value-added compounds, thereby helping to reduce its atmospheric concentration. Here, we describe a dinuclear copper(I) complex that is oxidized in air by CO2 rather than O-2; the product is a tetranuclear copper(II) complex containing two bridging CO2-derived oxalate groups. Treatment of the copper(II) oxalate complex in acetonitrile with a soluble lithium salt results in quantitative precipitation of lithium oxalate. The copper(II) complex can then be nearly quantitatively electrochemically reduced at a relatively accessible potential, regenerating the initial dinuclear copper(I) compound. Preliminary results demonstrate six turnovers (producing 12 equivalents of oxalate) during 7 hours of catalysis at an applied potential of -0.03 volts versus the normal hydrogen electrode.

引用

页码：313 / 315

页数：3

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