Keld Johansen

19 papers and 444 indexed citations
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About

Keld Johansen is a scholar working on Materials Chemistry, Catalysis and Automotive Engineering. According to data from OpenAlex, Keld Johansen has authored 19 papers receiving a total of 444 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Materials Chemistry, 9 papers in Catalysis and 6 papers in Automotive Engineering. Recurrent topics in Keld Johansen’s work include Catalytic Processes in Materials Science (14 papers), Catalysis and Oxidation Reactions (7 papers) and Vehicle emissions and performance (5 papers). Keld Johansen is often cited by papers focused on Catalytic Processes in Materials Science (14 papers), Catalysis and Oxidation Reactions (7 papers) and Vehicle emissions and performance (5 papers). Keld Johansen collaborates with scholars based in Denmark, United States and France. Keld Johansen's co-authors include İrini Angelidaki, Birgitte K. Ahring, Tejs Vegge, Johan Hjelm, Bryan D. McCloskey, A. C. Luntz, Poul Norby, Peter Glarborg, Anker Degn Jensen and Martin Andersson and has published in prestigious journals such as Applied Catalysis B: Environmental, ACS Catalysis and ACS Applied Materials & Interfaces.

In The Last Decade

Co-authorship network of co-authors of Keld Johansen

This figure shows the co-authorship network connecting the top 25 collaborators of Keld Johansen. A scholar is included among the top collaborators of Keld Johansen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Keld Johansen. Keld Johansen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Keld Johansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Keld Johansen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Keld Johansen. The network helps show where Keld Johansen may publish in the future.

Countries citing papers authored by Keld Johansen

Since Specialization
Citations

This map shows the geographic impact of Keld Johansen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Keld Johansen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keld Johansen more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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2026