since 2023
Research associate with Prof. Fawzi at the Department of Communication, Johannes Gutenberg University Mainz, in the Emmy Noether project “Alienation between population, media and politics? Media and political disenchantment from an audience and elite perspective”

2020-2023
Master’s degree: Communication (focus on Corporate Communication/PR) at Johannes Gutenberg University Mainz

2017-2020
Bachelor’s degree: Communication Studies and History at the Johannes Gutenberg University Mainz

During the master studies: Working student in the corporate communications department of Fresenius SE (Bad Homburg), graduate assistant at the Institute for Historical Regional Studies at JGU Mainz

During the bachelor studies: Student editorial assistant “ZDFheute”, ZDF, Mainz

Many years of involvement in the student PR initiative “kommoguntia e.V.”, including as a board member, as well as in the Communication Studies student council.

  • Journalistic reporting in the context of the climate mitigation debate
  • Media and political disenchantment and audience fatigue
  • Relationship between the media, politics and the population
  • CSR & greenwashing
  • 2023 – Finalist of the BdKom Talent Award (award for outstanding master theses in the fields of Media, Social or Communication Studies).
  • 2023 – Master’s award Corporate Communication of the Alumni Foundation of Mainz Communication Studies in cooperation with Lautenbach Sass.

2025

  • Keilmann, J., & Koch, T. (2025). Little green lies. Greenwashing’s detrimental impact on corporate perception and the interplay of perceived motives, skepticism and authenticity. Corporate Communications: An international Journal. https://doi.org/10.1108/CCIJ-05-2025-0108
  • Keilmann, J., Jakob, A., & Fawzi, N. (2025). Activist and/or neutral disseminator? Citizens’ and journalists’ views on climate reporting. The International Journal of Press/Politics. Published online first. https://doi.org/10.1177/19401612251367093

2024

  • Koch, T., Viererbl, B., Beckert, J., & Keilmann, J. (2024). CSR in times of crises. Why CSR activities can be both a blessing and burden during an organizational crisis. Journal of Communication Management, 28(3), 442-458. https://doi.org/10.1108/JCOM-09-2023-0095
  • Keilmann, J., & Koch, T. (2024). When Environmental Claims are Empty Promises: How Greenwashing Affects Corporate Reputation and Credibility. Environmental Communication, 18(3), 266-284. https://doi. org/10.1080/17524032.2023.2267782

2025

  • Keilmann, J., Jakob, A., & Fawzi, N. (2025, September). Bridging the gap between neutral and activist journalistic role conceptions in reporting on climate change mitigation? Citizen and journalist perspectives on balance, weight of evidence and activism. ECREA Political Communication Section Interim Conference, Innsbruck, Austria.
  • Fawzi, N., Jakob, A., & Keilmann, J. (2025, September). Institutional trust from the perspective of elites: How much trust do politicians and journalists feel they deserve? ECREA Political Communication Section Interim Conference, Innsbruck, Austria.
  • Beckert, J., Keilmann, J., Borchers, N., & Koch, E. (2025, June). Half the truth is still a lie? Perceptions of one-sided vs. two-sided transparency cues in green CSR messages and their effects on corporate image. 75th Annual Conference of the International Communication Association (ICA), Denver, Colorado, USA.
  • Jakob, A., Keilmann, J., Fawzi, N., Löb, C. & Zerback, T. (2025, June). Deceptive Distributions? (Mis)Perceived Polarization in the Climate Mitigation Debate from the Perspective of Citizens, Journalists and Politicians. 75th Annual Conference of the International Communication Association (ICA), Denver, Colorado, USA.
  • Fawzi, N., Hüter, C., Stegmann, D., Jakob, A. & Keilmann, J. (2025, June). The media as defenders of democracy? Comparing citizens’, politicians’ and journalists’ perceptions of pro-democratic journalistic role conceptions and performances. 75th Annual Conference of the International Communication Association (ICA), Denver, Colorado, USA.
  • Keilmann, J., Jakob, A., & Fawzi, N. (2025, March). Sachlich oder aktivistisch? Oder aktivistisch, weil die Sachlage es fordert? Rollenerwartungen und -bewertungen von Bürger:innen und Journalist:innen hinsichtlich (falscher) Ausgewogenheit, Weight of Evidence und Aktivismus in der journalistischen Klimaberichterstattung. 70. Jahrestagung der DGPuK, Berlin, Germany.
  • Beckert, J., Keilmann, J., & Koch, E. (2025, March). Wer A sagt, muss auch B sagen? Eine Studie zur Wirkung von einseitigen und zweiseitigen Transparenzhinweisen in grünen Unternehmensbotschaften und der moderierenden Rolle von Persuasionswissen. 70. Jahrestagung der DGPuK, Berlin, Germany.
  • Beckert, J., Keilmann, J., & Koch, E. (2025, March). Wer A sagt, muss auch B sagen? Eine Studie zur Wirkung von einseitigen und zweiseitigen Transparenzhinweisen in grünen Unternehmensbotschaften und der moderierenden Rolle von Persuasionswissen. 70. Jahrestagung der DGPuK, Berlin, Germany.
  • Keilmann, J. (2025, January). Sagen, was ist, oder tun, was getan werden muss? Ein Experiment zur Wirkung aktivistischer Klimaberichterstattung auf ihre wahrgenommene Glaubwürdigkeit und intendierte politische Partizipation. Jahrestagung der DGPuK-Fachgruppe Rezeptions- und Wirkungsforschung, Bamberg, Germany.
  • Koch, T., & Keilmann, J. (2025, January). 50 Shades of Green. Wie bereits minimale Formen von Greenwashing die Wahrnehmung von Unternehmen negativ beeinflussen können. Jahrestagung der DGPuK-Fachgruppe Rezeptions- und Wirkungsforschung, Bamberg, Germany.

2024

  • Keilmann, J., & Koch, T. (2024, September). Little white (or rather green) lies. The impact of minor forms of greenwashing on corporate reputation and credibility. 10th European Communication Conference of the European Communication Research and Education Association (ECREA), Ljubljana, Slovenia.
  • Keilmann, J., & Koch, T. (2024, September). Green disguise. Greenwashing’s detrimental impact on corporate perception and the interplay of perceived motives, skepticism, and authenticity. EUPRERA Annual Congress, Bucharest, Romania.

2023

  • Keilmann J. (2023, September). Verwaschene Verantwortung? Greenwashing und seine Folgen für Unternehmen. 20. Kommunikationskongress (KKongress), Berlin, Germany.
  • Keilmann, J., & Koch, T. (2023, May). Greenwashing. Defining and explaining a blurred concept from the recipient’s perspective. 73rd Annual Conference of the International Communication Association (ICA), Toronto, Ontario, Canada.