Small molecule activation for long-term energy storage
Sprache des Vortragstitels:
Englisch
Original Tagungtitel:
Hydrogen.bridge Wels
Sprache des Tagungstitel:
Englisch
Original Kurzfassung:
In our research work, we focus on converting CO2 to the industrial feedstock syngas (CO:H2), formic acid, methanol, ethanol, acetic acid via tailored molecular catalysts. We will discuss our synthesis efforts to develop functional materials based on metal complex systems and subsequently show their application as catalysts for CO2RR.1-3 As an example, we designed a series of different Ag(I) N,N´-bis(arylimino)-acenaphtene complexes (Ag-BIAN), which are cost-competitive with the industry standard Ag-NPs, while allowing for high tunability of the reactive environment. We tested the different catalysts not only in cell concepts used often in laboratory set-ups but aimed for a rapid transition to industrially relevant cell assemblies and conditions. Contrary to previous reports on comparable matters, we show an exponential performance improvement above 200 mA cm-2 by tailoring the cell and condition engineering allows us to reach record-breaking values not only for the subfield of molecular catalysts but also in the field of CO2 electroreduction overall. Specifically, we reached a mass activity of 100 A mg-1 Ag at a current density of up to 900 mA cm-2 and high selectivity for CO (90%).
Sprache der Kurzfassung:
Englisch
Vortragstyp:
Hauptvortrag / Eingeladener Vortrag auf einer Tagung
Forschungs-