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Salen ligand complexes as electrocatalysts for direct electrochemical reduction of gaseous carbon dioxide to value added products

机译:Salen配体复合物作为电催化剂,用于直接电化学减少气态二氧化碳以增值产品

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摘要

CO2, being a linear and centrosymmetric molecule, is very stable, and the electrochemical reduction of CO2 requires energy. Moreover, the CO2 electroreduction proceeds at a significantly higher applied voltage than thermodynamically required. In this concern, salen ligand, H2LNO2, and its corresponding Ni(II) and Cu(II) complexes are synthesized and reported for the first time as electrocatalysts for CO2 electroreduction. Both the metal complexes are active for CO2 reduction and surprisingly result in formation of C-1 and C-2 hydrocarbons. The complexes are found to be very efficient to minimize overpotential required for the reaction as compared to their pure metal counterparts. Thus, the present study opens up a new class of metal complexes for the efficient electrochemical reduction of CO2 having the potential to generate hydrocarbons at lower overpotentials.
机译:CO 2是线性和亚离子微分分子,非常稳定,CO2的电化学还原需要能量。 此外,CO2电氧电极以比热力学的施加电压明显更高的施加电压。 在该担忧中,合成Salen配体,H 2L 2及其相应的Ni(II)和Cu(II)配合物,并将其首次报道作为CO 2电催化剂的电催化剂。 金属配合物两者都是活性的CO 2还原,并且令人惊讶地导致形成C-1和C-2烃。 发现复合物非常有效,以最小化反应所需的过电位,与其纯金属对应物相比。 因此,本研究开辟了一种新的金属配合物,用于有效的电化学减少的CO 2,其具有在较低的过电下产生烃。

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  • 来源
    《RSC Advances》 |2015年第5期|共9页
  • 作者单位

    Indian Inst Technol Ctr Environm Gauhati 781039 India;

    Indian Inst Technol Dept Chem Gauhati 781039 India;

    Indian Inst Technol Ctr Environm Gauhati 781039 India;

    Indian Inst Technol Dept Chem Engn Delhi 110016 India;

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  • 正文语种 eng
  • 中图分类 化学;
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