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Capacitive processes for carbon capture and energy recovery from CO2 emissions
Group: Environmental Technology, Wageningen University
Promotor: prof. dr C Buisman
Co-promotors: dr ir HVM Hamelers and dr M. Tedesco
This thesis focuses on shaping capacitive technologies going from water to gas applications. Conventionally, capacitive cells have been used for water desalination and blue energy. Based on the same principle, we demonstrated that this technology could also be used for CO2 capture and energy recovery from CO2 emissions. However, by shifting from water to CO2 gas, the performance of the capacitive cell suffered from an increase of electrical resistance and a loss of ion selectivity. Through our investigation, the electrical resistance was progressively reduced by optimizing the cell design and the electrode material. Similarly, we show that the ion selectivity increases by optimizing the electrode material. As a result, the capacitive cell performance continually improved, showing great promises for CO2 capture. Future work should focus on tuning the electrode material to develop further the technology.
By September we will present an overview of SENSE dissertations on this page, with links to the full texts of the dissertations.