Syngas production by electrochemical CO 2 reduction in an ionic liquid based-electrolyte
2017; Elsevier BV; Volume: 18; Linguagem: Inglês
10.1016/j.jcou.2017.01.007
ISSN2212-9839
AutoresTiago Pardal, Sofia Messias, Margarida Sousa, Ana S. Reis Machado, C.M. Rangel, Daniela Nunes, Joana V. Pinto, Rodrigo Martins, Manuel Nunes da Ponte,
Tópico(s)Catalytic Processes in Materials Science
ResumoThe electrochemical reduction of carbon dioxide dissolved in a solution of water and ionic liquid as electrolyte, at high-pressure and near room-temperature, is reported. This work describes an electro-deposition strategy for the preparation of copper substrate cathodes, coated with bimetallic zinc–copper films, obtained from deep-eutectic solvents plating baths. The prepared bimetallic cathodes showed electrochemical activity for syngas production in 1-butyl-3-methylimidazolium triflate, with yields of 85 NμL (normal microliter) cm−2 C−1/170 NμL cm−2 h−1, high selectivities, tunable H2/CO ratio and low energetic requirements.
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