conference contributions

Modern Concepts in Catalysis: From Science to Engineering, 18-21 September 2023, Heidelberg

The South-West-German Catalysis Course

• Developing synthesis strategies for novel ceria-based catalysts for CO₂ activation (poster by M. Sc. Joanna Müller)
• Operando vibrational spectroscopies (invited talk by Prof. Dr. Christian Hess)

Gordon conference on Laser Diagnostics in Energy and Combustion Science, 9-14 July 2023, Newry Maine, USA

Advancing Optical Diagnostics for Future Energy Systems

• Shining light on catalysts using operando/transient Raman and IR spectroscopy (invited talk by Prof. Dr. Christian Hess)

Bunsentagung 5-7 June 2023, Berlin

Physical Chemistry of the Energy Transition

• Mechanistic insight into CO₂ activation using new operando and transient spectroscopic approaches (invited keynote talk by Prof. Christian Hess)
• Time-resolved operando UV-VIS spectroscopy of LaFeO₃ sensors (poster by M.Sc. Maximilian Pfeiffer)

Operando VII, 7-11 May 2023, Grindelwald, Switzerland

7th International Congress on Operando Spectroscopy

• CO₂ activation over reducible oxide catalysts studied by operando/transient spectroscopy (invited keynote talk by Prof. Christian Hess)

German Catalysis Meeting, 15-17 March 2023, Weimar

56. “Jahrestreffen Deutscher Katalytiker”

• Mechanistic insight into CO₂ activation using new operando and transient spectroscopic approaches (talk by Prof. Dr. Christian Hess).
• Unraveling the Active Vanadium Sites and Adsorbate Dynamics in VO_x/CeO₂ Oxidation Catalysts Using Transient IR Spectroscopy (talk by M.Sc. Leon Schumacher).
• Structural Dynamics of Iron Molybdate Catalysts for Oxidative Dehydrogenation studied by In-situ and Operando Spectroscopy (talk by M.Sc. Jan Welzenbach).
• Unraveling active species on gold- and copper-ceria catalysts using IR-modulation excitation spectroscopy (poster by M.Sc. Jakob Weyel).

Modern Concepts in Catalysis: From Science to Engineering, 19-23 September 2022, Pirmasens

The South-West-German Catalysis Course

• Vibrational spectroscopies in heterogeneous catalysis (invited talk by Prof. Christian Hess).
• Ethanol ODH over Iron molybdate catalysts using operando Raman spectroscopy (poster by M.Sc. Jan Welzenbach).

9th World Congress on Oxidation Catalysis, 4-8 Sept, 2022, Cardiff, U.K.

WOCO

• Unravelling the dynamics of the CO oxidation over Au catalysts using transient and operando spectroscopies combined with DFT (talk by Prof. Christian Hess).
• The mechanistic interplay between vanadia and its support during propane ODH studied by transient spectroscopy (talk by M.Sc. Leon Schumacher).

Bunsentagung 7-9 Sept, 2022, Gießen

• Shining light on CO₂ activation over oxide catalysts using transientand operando vibrational spectroscopies combined with DFT (talk by Prof. Christian Hess).
• Application of Modulation-Excitation Spectroscopy to Unravel the Mechanism of Ethanol Gas Sensing over Au/SnO₂ (talk by M.Sc. Maximilian Pfeiffer).
• Combining transient IR spectra with DFT to elucidate the active Au sites during CO oxidation on Au/CeO₂(111) (poster by M.Sc. Jakob Weyel).

Vibrational Spectroscopy Gordon Research Conference, 31 July-5 Aug 2022, RI, USA

• Unraveling active species in gold-ceria catalysts using IR-modulation excitation spectroscopy (poster by Jakob Weyel).

Vibrational Spectroscopy Gordon Research Seminar, 30-31 July, Smithfield, RI, USA

• Unraveling active species in gold-ceria catalysts using IR-modulation excitation spectroscopy (talk by M.Sc. Jakob Weyel).

Kolloquium LIKAT, 22. July 2022, Rostock

• Shining light on catalysts using operando and transient spectroscopies (invited talk by Prof. Dr. Christian Hess).

ZCAM-ASEVA, Zaragoza, Spain, 4-8 July 2022

Metal oxide ultrathin films and nanostructures

• Shining light on the reactivity behaviour of ceria catalysts using transient / operando vibrational spectroscopies combined with DFT (invited talk by Prof. Dr. Christian Hess).
• Elucidating the reducibility behavior and CO₂ activation of In₂O₃ nanoparticles using multiple in situ / operando spectroscopy (poster by M.Sc. Marc Ziemba).

German Catalysis Meeting, 27-29 June 2022, Weimar

55. “Jahrestreffen Deutscher Katalytiker”

• Mesoporous CuO-CeO₂/SBA-15 catalysts for NH₃-SCR applications: Controlled synthesis using in situ spectroscopy (talk by M.Sc. Jun Shen).
• Operando spectroscopic investigation of the reaction mechanism of the propane ODH over VOx/TiO₂ catalysts (poster by M.Sc. Leon Schumacher).
• Elucidating the CO₂ Conversion via Reverse Water-gas Shift over In₂O₃ using In Situ / Operando Spectroscopies(poster by M.Sc. Marc Ziemba).
• Detailed understanding of reaction mechanisms by unravelling hidden active species on Au/CeO₂ catalysts using modulation excitation spectroscopy (poster by M.Sc. Jakob Weyel).

MRS Fall Meeting and Exhibit, 29 Nov-2 Dec, 2021, Boston, USA

• Operando Surface Enhanced Raman Spectroelectrochemistry for Mechanistic Understanding of Energy Storage in Lithium/Sodium/Potassium Ion-Batteries Containing Few-Layered 2D Anodes (talk by Dr. Mariusz Radtke).

EUROMAT, 12-16 Sept 2021, Graz, Austria, online

EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES

• Surface Enhanced Raman spectroelectrochemistry as a tool in operando studies of energy storage systems (talk by Dr. Mariusz Radtke).

ExpReS 2021, 3rd IMPRS RECHARGE, 19-21 May 2021, online

• Shining light on catalysts at work: A combined operando and DFT approach (talk by Prof. Dr. Christian Hess).
• Elucidating active species over Au/CeO₂ catalysts during CO oxidation with modulation excitation IR spectroscopy (talk by M.Sc. Jakob Weyel).
• The active role of the support in propane ODH over VOx/CeO₂ catalysts studied using multiple operando spectroscopies (poster by M.Sc. Leon Schumacher).

54th Annual Meeting of German Catalysts, 16-19 March 2021, online

• CO₂ activation over Au/CeO₂ catalysts in the reverse water-gas shift reaction: an operando spectroscopic study (talk by M.Sc. Marc Ziemba).
• CO₂ as a soft-oxidant for propane ODH over VOx/CeO₂ catalysts and its influence on the reaction mechanism: an operando spectroscopic study (poster by M.Sc. Leon Schumacher).
• Infrared modulation excitation spectroscopy over Au/CeO₂ catalysts: temporal assignment of active CO adsorbates (poster by M.Sc. Jakob Weyel).

Faraday Discussion London “Reaction Mechanism in Catalysis”, 17-19 February 2021, digital

• Insight into the mechanism of the water–gas shift reaction over Au/CeO₂ catalysts using combined operando spectroscopies (talk by Prof. Dr. Christian Hess)

1st International Electronic Conference on Catalysis Science, 10-30 November 2020, online

• Combined DFT and operando Spectroscopic Study of the Water-Gas Shift Reaction over Ceria based Catalysts: The Role of the Noble Metal and Ceria Faceting (talk by M.Sc. Marc Ziemba).

Workshop on Catalysis, 30 September-2 October 2020, online

• DRIFT-MES of CO oxidation over Au/CeO₂: temporal classificationof CO adsorbates within the mechanism (talk by M.Sc. Jakob Weyel).

EuropaCat 18-23 August 2019, Aachen

• Elucidating the oxygen dynamics of the water-gas shift reaction over Au/CeO₂ catalysts using combined operando spectroscopies (talk by Prof. Dr. Christian Hess).
• New Insight into the Role of Platinum in NOx Storage over Pt/CeO₂ using Operando Spectroscopies (talk by Dr. Anastasia Filtschew).
• The influence of CeO₂ surface facets on oxygen activation: A combined in situ Raman spectroscopic and DFT study (talk by M.Sc. Marc Ziemba).
• Elucidating the structure of supported vanadia catalysts during ethanol and propane ODH using operando UV Raman spectroscopy (Poster by M.Sc. Simone Rogg).

17th Int. Conf. on Carbon Dioxid Utilization (ICCDU), 23-27 June 2019, Aachen

• The structural dynamics of supported vanadia catalysts: a comparative study of CO₂ and O₂ during propane ODH by using operando UV Raman spectroscopy (talk by M.Sc. Simone Rogg).

8th GOSPEL Workshop, 20-21 June 2019, Ferrara, Italy

Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields

• Shining light on indium oxide gas sensors at work: A combined operando Raman / UV-Vis / FT-IR spectroscopic study (talk by Prof. Dr. Christian Hess).

118th Bunsentagung, 30 May-1 June 2019, Jena

• Monitoring SEI components on cathode material: An in situ surface enhanced Raman study on Li-ion batteries (talk by M.Sc. Marcel Heber).
• Embedded vanadia as a new class of oxide catalysts: Synthesis and operando spectroscopic analysis during partial oxidation (talk by Prof. Dr. Christian Hess).

256th ACS National Meeting 19.-23.8.2018, Boston, USA

• Shining light on catalysts at work: Multi-wavelength and time-resolved operando Raman spectroscopy (talk by Prof. Dr. Christian Hess).
• Nanoscale structuring of surfaces by using atomic layer deposition: Controlled synthesis of nanocavities (talk by Prof. Dr. Christian Hess).

CERIA 25-27 June 2018, Barcelona, Spain

• Surface and bulk oxygen defects in ceria support of Au/CeO₂ Catalysts: A combined operando Raman and DFT study ((talk by M.Sc. Christian Schilling).
• Shining light onto the mechanism of NOx storage in ceria using operando spectroscopy: The role of defects and Ce-O sites (talk by Prof. Dr. Christian Hess).

OPERANDO VI, 15-19 April 2018, Estepona (Malaga), Spain

• Defect and adsorbate dynamics in supported gold catalysts: Combining operando spectroscopy with DFT calculations (invited talk by Prof. Dr. Christian Hess).

51. Jahrestreffen Deutscher Katalytiker, 14-16 March 2018, Weimar

• Targeted resonance Raman spectroscopy on supported vanadia catalysts during ODH reactions (Poster and selected poster-talk by M.Sc. Simone Rogg).
• Real-time observation of the oxygen dynamics in working Au/CeO2 catalysts probed by combined operando spectroscopy (talk by M.Sc. Christian Schilling)