Abstract The present work reports the development of Cu/Cu2O-Cu(BDC-NH2) electrode, prepared by electrochemical deposition using the ligand 2-amino-1,4-benzenedicarboxylic acid and copper ion (II) produced in situ, and its application in CO2 reduction in aqueous medium. The Cu(BDC-NH2) MOF deposited on Cu/Cu2O electrode act as efficient catalyst for the photoelectrocatalytic reduction of CO2 due to its high surface area and high capacity of trapping CO2. Under optimized conditions and based on the application of the proposed electrode, the photoelectrocatalytic reduction of 0.1 mol L−1 sodium sulfate saturated with CO2 under UV–Vis irradiation and applied potential of +0.1 V can generate an amount of approximately 674 μmol L−1 of methanol in 3 h of treatment. The amine substituent in Cu(BDC-NH2) MOF plays an important role in the capturing of CO2, and this contributes toward obtaining better photoelectrocatalytic efficiency of the CO2/methanol conversion compared to the use of the Cu/Cu2O and the non-functionalized Cu/Cu2O-Cu(BDC) MOF electrode.

中文翻译：

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Cu(BDC-NH2) MOF沉积在Cu/Cu2O电极上的效果及其更好的光电催化还原CO2性能

摘要 本工作报道了利用原位产生的配体 2-氨基-1,4-苯二甲酸和铜离子 (II) 通过电化学沉积制备的 Cu/Cu2O-Cu(BDC-NH2) 电极的开发及其应用。在水介质中的 CO2 还原。沉积在 Cu/Cu2O 电极上的 Cu(BDC-NH2) MOF 具有高表面积和高捕获 CO2 的能力，可作为光电催化还原 CO2 的有效催化剂。在优化的条件下，基于所提出的电极的应用，在 UV-Vis 照射和 +0.1 V 的外加电位下，0.1 mol L-1 饱和 CO2 硫酸钠的光电催化还原可以产生大约 674 μmol L-1 的量甲醇在 3 小时的处理中。Cu(BDC-NH2) MOF 中的胺取代基在捕获 CO2 中起重要作用，