Catalysts for the heterogeneous electrocatalytic CO2 reduction reaction
Sprache des Vortragstitels:
Deutsch
Englischer Vortragstitel:
Catalysts for the heterogeneous electrocatalytic CO2 reduction reaction
Englischer Tagungstitel:
The 15th ECS Yamagata University Student Chapter Symposium
Englische Kurzfassung:
The imminent climate crisis, as well as the ongoing situation in Ukraine sound the warning bells that modern society must rapidly transition to decentralized carbon-neutral technologies. In our investigation, we focus on converting CO2 to the industrial feedstock syngas (CO:H2), formic acid, methanol, ethanol, acetic acid via tailored molecular catalysts.
During the lecture, I will discuss our synthesis efforts to develop functional materials based on metal complex systems and subsequently show their application as catalysts for CO2RR.
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.4 We tested the different catalysts not only in cell concepts used often in laboratory setups
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 mAcm-2 by
tailoring the cell and condition
engineering allows us to reach recordbreaking 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%).
Vortragstyp:
Hauptvortrag / Eingeladener Vortrag auf einer Tagung