conference contributions

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

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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, onlinel

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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 Hess research group presented the following:

  • 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"

The Hess research group presented the following:

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

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

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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

The Hess research group presented the following:

  • 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

Bei der 6. Internationalen Operando-Konferenz in Estepona (Malaga, Spanien) wurden unsere kombinierten operando-IR/UV-Vis/Raman- und DFT-Ergebnisse zur Adsorbat- und Defekt-Dynamik von Gold-Katalysatoren während Oxidationsreaktionen in Form einer Keynote Lecture von Prof. Dr. Christian Hess vorgestellt.

At the 6th International Operando Conference at Estepona Prof. Dr. Christian Hess gave a keynote speech presenting our combined operando-IR/UV-Vis/Raman- und DFT-results of adsorbat- and defect-dynamic of gold catalysts during oxidation.

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

The Hess research group presented the following:

  • 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)