Syngas Production Improvement from CO2RR Using Cu-Sn Electrodeposited Catalysts

被引:0
|
作者
Herranz, Daniel [1 ]
Biriucov, Santiago Bernedo [1 ]
Arranz, Antonio [2 ]
Moreno, Juan Ramon Aviles [1 ]
Ocon, Pilar [1 ]
机构
[1] Univ Autonoma Madrid UAM, Dept Quim Fis Aplicada, C Francisco Tomas y Valiente 7, Madrid 28049, Spain
[2] Univ Autonoma Madrid UAM, Dept Fis Aplicada, C Francisco Tomas y Valiente 7, Madrid 28049, Spain
关键词
CO2 reduction reaction; electrocatalysis; electrodeposition; Cu; Sn; bimetallic catalyst; ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; METAL-ELECTRODES; CO SELECTIVITY; COPPER; ELECTROREDUCTION; CONVERSION; BICARBONATE; NANOPARTICLES; INTERFACE;
D O I
10.3390/ma18010105
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
Electrochemical reduction of CO2 is an efficient and novel strategy to reduce the amount of this greenhouse-effect pollutant gas in the atmosphere while synthesizing value-added products, all of it with an easy synergy with intermittent renewable energies. This study investigates the influence of different ways of combining electrodeposited Cu and Sn as metallic elements in the electrocatalyst. From there, the use of Sn alone or with a small amount of Cu beneath is investigated, and finally, the best catalyst obtained, which has Sn over a slight Cu layer, is evaluated in consecutive cycles to make an initial exploration of the catalyst durability. As a result of this work, after optimization of the Sn and Cu-based catalysts, it is possible to obtain more than 60% of the organic products of interest, predominantly CO, the main component of syngas. Finally, this great amount of CO is obtained under low cell potential (below 3 V), which is a remarkable result in terms of the cost of the process.
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页数:16
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