CO2 capture; Isotherm; Thermography; CO2 sorption materials; Hydrogen; Energy storage
Mutschler Robin, Moioli Emanuele, Züttel Andreas (2019), Modelling the CO2 hydrogenation reaction over Co, Ni and Ru/Al2O3, in Journal of Catalysis
, 375, 193-201.
Moioli Emanuele, Mutschler Robin, Züttel Andreas (2019), Renewable energy storage via CO2 and H2 conversion to methane and methanol: Assessment for small scale applications, in Renewable and Sustainable Energy Reviews
, 107, 497-506.
Mutschler Robin, Luo Wen, Moioli Emanuele, Züttel Andreas (2018), Fast real time and quantitative gas analysis method for the investigation of the CO 2 reduction reaction mechanism, in Review of Scientific Instruments
, 89(11), 114102-114102.
Mutschler Robin, Moioli Emanuele, Luo Wen, Gallandat Noris, Züttel Andreas (2018), CO2 hydrogenation reaction over pristine Fe, Co, Ni, Cu and Al2O3 supported Ru: Comparison and determination of the activation energies, in Journal of Catalysis
, 366, 139-149.
Luo Wen, Xie Wei, Mutschler Robin, Oveisi Emad, De Gregorio Gian Luca, Buonsanti Raffaella, Züttel Andreas (2018), Selective and Stable Electroreduction of CO 2 to CO at the Copper/Indium Interface, in ACS Catalysis
, 8(7), 6571-6581.
Gallandat Noris, Mutschler Robin, Vernay Vincent, Yang Heena, Züttel Andreas (2018), Experimental performance investigation of a 2 kW methanation reactor, in Sustainable Energy & Fuels
, 2(5), 1101-1110.
The contribution of renewable energy e.g. solar, wind and hydropower, to the overall energy demand is increasing worldwide. Therefore, the storage of renewable energy requires the conversion of electricity into an energy carrier. The technologically most feasible process is electrolysis of water and hydrogen production. Hydrogen can be stored and used as an energy carrier; however, the maximum energy density of hydrogen storage is at approximately 50% of the gravimetric and volumetric energy density of fossil fuels. The continuation of the combustion of fossil fuels will further increase the CO2 concentration in the atmosphere beyond 400 ppm. The reduction of CO2 with hydrogen to hydrocarbons (synthetic fuels) allows storing renewable energy in an easy and CO2 neutral way and with the same energy density as fossil fuels. Therefore, CO2 extraction from air and the controlled reduction of CO2 to a specific hydrocarbon are of great importance for the future energy economy based on renewable energy. The project aims to develop and investigate new materials and processes for the CO2 extraction from air. A new experimental setup will be constructed and built in order to investigate the gas adsorption properties of the materials by several methods. The isotherms are investigated by means of mass flow control, while the kinetics is analyzed by means of a Sievert type system and the reaction progress in the sample will be followed by thermographymetry. New materials are developed with functionalized surfaces for the specific adsorption of CO2 and the reduction of the adsorption of water. New nanoporous materials with tailored functionalized surfaces will be developed. The materials will be characterized and the adsorption is modelled as a function of the thermodynamic relevant parameters, e.g. gas concentration, temperature and pressure. The properties of new materials for the CO2 extraction from air are investigated, including the analysis of the thermodynamics and process parameters. The combination of electrolysis, providing hydrogen at elevated temperature, with CO2 capturing in order to desorb CO2 with hydrogen purge gas as a new approach to generate CO2 / H2 mixtures, a syngas precursor, will be investigated. The project is the basis for a PhD work and will be carried out in the Laboratori of Materials for Renewable Energy in Energypolis EPFL Valais/Wallis in Sion.