Abstract
The 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.
Original language | English |
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Pages (from-to) | 62-72 |
Number of pages | 11 |
Journal | Journal of CO2 Utilization |
Volume | 18 |
DOIs | |
Publication status | Published - Mar 2017 |
Keywords
- Carbon dioxide
- Syngas
- Electroreduction
- Ionic liquids
- Copper–zinc alloys