Capacitance-Assisted Sustainable Electrochemical Carbon Dioxide Mineralisation.

Autor: Lamb KJ; Department of Chemistry, University of York, York, YO10 5DD, UK., Dowsett MR; Department of Chemistry, University of York, York, YO10 5DD, UK., Chatzipanagis K; Department of Physics, University of York, York, YO10 5DD, UK., Scullion ZW; Department of Physics, University of York, York, YO10 5DD, UK., Kröger R; Department of Physics, University of York, York, YO10 5DD, UK., Lee JD; Department of Chemistry, University of York, York, YO10 5DD, UK., Aguiar PM; Department of Chemistry, University of York, York, YO10 5DD, UK., North M; Department of Chemistry, University of York, York, YO10 5DD, UK., Parkin A; Department of Chemistry, University of York, York, YO10 5DD, UK.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2018 Jan 10; Vol. 11 (1), pp. 137-148. Date of Electronic Publication: 2017 Dec 12.
DOI: 10.1002/cssc.201702087
Abstrakt: An electrochemical cell comprising a novel dual-component graphite and Earth-crust abundant metal anode, a hydrogen producing cathode and an aqueous sodium chloride electrolyte was constructed and used for carbon dioxide mineralisation. Under an atmosphere of 5 % carbon dioxide in nitrogen, the cell exhibited both capacitive and oxidative electrochemistry at the anode. The graphite acted as a supercapacitive reagent concentrator, pumping carbon dioxide into aqueous solution as hydrogen carbonate. Simultaneous oxidation of the anodic metal generated cations, which reacted with the hydrogen carbonate to give mineralised carbon dioxide. Whilst conventional electrochemical carbon dioxide reduction requires hydrogen, this cell generates hydrogen at the cathode. Carbon capture can be achieved in a highly sustainable manner using scrap metal within the anode, seawater as the electrolyte, an industrially relevant gas stream and a solar panel as an effective zero-carbon energy source.
(© 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.)
Databáze: MEDLINE
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