Alexander Köppl

1.4k total citations · 1 hit paper
8 papers, 1.2k citations indexed

About

Alexander Köppl is a scholar working on Organic Chemistry, Process Chemistry and Technology and Materials Chemistry. According to data from OpenAlex, Alexander Köppl has authored 8 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Organic Chemistry, 4 papers in Process Chemistry and Technology and 3 papers in Materials Chemistry. Recurrent topics in Alexander Köppl's work include Organometallic Complex Synthesis and Catalysis (6 papers), Carbon dioxide utilization in catalysis (4 papers) and Synthetic Organic Chemistry Methods (3 papers). Alexander Köppl is often cited by papers focused on Organometallic Complex Synthesis and Catalysis (6 papers), Carbon dioxide utilization in catalysis (4 papers) and Synthetic Organic Chemistry Methods (3 papers). Alexander Köppl collaborates with scholars based in Germany. Alexander Köppl's co-authors include Helmut G. Alt, J.E. Berger, Wilhelm Schneider, Peter Schertl and Roland Schmidt and has published in prestigious journals such as Chemical Reviews, Journal of Applied Polymer Science and Journal of Organometallic Chemistry.

In The Last Decade

Alexander Köppl

8 papers receiving 1.2k citations

Hit Papers

Effect of the Nature of Metallocene Complexes of Group IV... 2000 2026 2008 2017 2000 250 500 750
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Effect of the Nature of Metallocene Complexes of Group IV Metals on Their Performance in Catalytic Ethylene and Propylene Polymerization
    2000 916 citations Helmut G. Alt, Alexander Köppl Chemical Reviews profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Alexander Köppl Germany 7 1.0k 395 342 155 149 8 1.2k
Toshiya Uozumi Japan 23 1.1k 1.1× 480 1.2× 305 0.9× 198 1.3× 293 2.0× 66 1.4k
A. Razavi Belgium 4 597 0.6× 169 0.4× 243 0.7× 193 1.2× 67 0.4× 5 757
Marc O. Kristen Germany 14 420 0.4× 103 0.3× 210 0.6× 111 0.7× 81 0.5× 17 585
Г. Д. Букатов Russia 17 554 0.5× 278 0.7× 218 0.6× 110 0.7× 88 0.6× 47 701
Robert I. Mink United States 13 509 0.5× 224 0.6× 176 0.5× 89 0.6× 82 0.6× 15 596
John Boor United States 13 415 0.4× 144 0.4× 110 0.3× 378 2.4× 121 0.8× 26 802
Timothy D. Shaffer United States 16 447 0.4× 102 0.3× 74 0.2× 277 1.8× 153 1.0× 30 706
Wen‐Liang Hsu United States 15 233 0.2× 32 0.1× 105 0.3× 207 1.3× 144 1.0× 24 515
Feng‐Shou Liu China 24 1.7k 1.6× 454 1.1× 302 0.9× 62 0.4× 211 1.4× 81 1.9k
Lisa S. Boffa United States 5 973 1.0× 456 1.2× 245 0.7× 84 0.5× 71 0.5× 5 1.0k

Countries citing papers authored by Alexander Köppl

Since Specialization
Citations

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

Fields of papers citing papers by Alexander Köppl

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Alexander Köppl

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

All Works

8 of 8 papers shown
1.
Köppl, Alexander, et al.. (2001). Partially hydrolyzed trimethylaluminum (PHT) as heterogeneous cocatalyst for the polymerization of olefins with metallocene complexes. Journal of Applied Polymer Science. 80(3). 454–466. 1 indexed citations
2.
Köppl, Alexander & Helmut G. Alt. (2001). Heterogeneous metallocene catalysts for ethylene polymerization. Journal of Molecular Catalysis A Chemical. 165(1-2). 23–32. 24 indexed citations
3.
Köppl, Alexander, et al.. (2000). Homopolymerization of ethylene and copolymerization of ethylene and 1-hexene with bridged metallocene/methylaluminoxane catalysts: the influence of the bridging moiety. Journal of Molecular Catalysis A Chemical. 153(1-2). 109–119. 25 indexed citations
4.
Köppl, Alexander & Helmut G. Alt. (2000). Substituted 1-(2-pyridyl)-2-azaethene-(N,N)-nickel dibromide complexes as catalyst precursors for homogeneous and heterogeneous ethylene polymerization. Journal of Molecular Catalysis A Chemical. 154(1-2). 45–53. 91 indexed citations
5.
Alt, Helmut G. & Alexander Köppl. (2000). Effect of the Nature of Metallocene Complexes of Group IV Metals on Their Performance in Catalytic Ethylene and Propylene Polymerization. Chemical Reviews. 100(4). 1205–1222. 916 indexed citations breakdown →
6.
Köppl, Alexander, Helmut G. Alt, & Roland Schmidt. (1999). Poly(organosiloxan)mikrogele als Trägermaterialien für heterogene Methylalumoxancokatalysatoren. Journal of Organometallic Chemistry. 577(2). 351–357. 14 indexed citations
7.
Alt, Helmut G., Peter Schertl, & Alexander Köppl. (1998). Polymerization of ethylene with metallocene/methylaluminoxane catalysts supported on polysiloxane micro gels and silica. Journal of Organometallic Chemistry. 568(1-2). 263–269. 29 indexed citations
8.
Schneider, Wilhelm, Alexander Köppl, & J.E. Berger. (1988). Non – Isothermal Crystallization Crystallization of Polymers. International Polymer Processing. 2(3-4). 151–154. 119 indexed citations

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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