Ralf Ludwig

374 papers and 16.8k indexed citations i.

About

Ralf Ludwig is a scholar working on Catalysis, Organic Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Ralf Ludwig has authored 374 papers receiving a total of 16.8k indexed citations (citations by other indexed papers that have themselves been cited), including 158 papers in Catalysis, 80 papers in Organic Chemistry and 78 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Ralf Ludwig’s work include Ionic liquids properties and applications (146 papers), Electrochemical Analysis and Applications (59 papers) and Spectroscopy and Quantum Chemical Studies (53 papers). Ralf Ludwig is often cited by papers focused on Ionic liquids properties and applications (146 papers), Electrochemical Analysis and Applications (59 papers) and Spectroscopy and Quantum Chemical Studies (53 papers). Ralf Ludwig collaborates with scholars based in Germany, United States and Pakistan. Ralf Ludwig's co-authors include Koichi Fumino, Alexander Wulf, Dietmar Paschek, Thorsten Köddermann, Matthias Beller, Frank Weinhold, Thomas C. Farrar, Henrik Junge, Andreas Heintz and Peter Stange and has published in prestigious journals such as Science, Journal of the American Chemical Society and Physical Review Letters.

In The Last Decade

Co-authorship network of co-authors of Ralf Ludwig

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf Ludwig. A scholar is included among the top collaborators of Ralf Ludwig 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 Ralf Ludwig. Ralf Ludwig is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Ralf Ludwig

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralf Ludwig. 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 Ralf Ludwig. The network helps show where Ralf Ludwig may publish in the future.

Countries citing papers authored by Ralf Ludwig

Since Specialization
Citations

This map shows the geographic impact of Ralf Ludwig'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 Ralf Ludwig with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralf Ludwig 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