Simultaneous Electrosynthesis of Syngas and an Aldehyde from CO2 and an Alcohol by Molecular Electrocatalysis

被引：52
|
作者：
Wang, Ying [1 ]
Gonell, Sergio [1 ]
Mathiyazhagan, Ulaganatha Raja [1 ]
Liu, Yanming [1 ]
Wang, Degao [1 ]
Miller, Alexander J. M. [1 ]
Meyer, Thomas J. [1 ]
机构：
[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA
来源：
ACS APPLIED ENERGY MATERIALS | 2019年 / 2卷 / 01期
关键词：
CO2; reduction; alcohol oxidation; electrocatalysis; artificial photosynthesis; molecular catalyst; electrochemical synthesis; WATER OXIDATION; SINGLE-SITE; HYDROGEN-PRODUCTION; REDUCTION; ACETATE;
D O I：
10.1021/acsaem.8b01616
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A tandem cell for artificial photosynthesis with CO2 and water as the oxidants and an organic alcohol as the reductant is described. The use of molecular catalysts with high activity and selectivity, in an appropriate cell configuration, leads to electrochemical reduction of CO2 and water to CO and H-2 (syngas) in tandem with benzyl alcohol oxidation to benzaldehyde. A faradaic efficiency (FE) of similar to 70% for the formation of benzaldehyde was obtained with simultaneous syngas generation with varying ratios of H-2 and CO at the cathode. The maximum energy efficiency obtained for the electrochemical cell was 17.6%.
引用
收藏
页码：97 / 101
页数：9
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