Stefan Helmly

440 total citations
12 papers, 375 citations indexed

About

Stefan Helmly is a scholar working on Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment and Polymers and Plastics. According to data from OpenAlex, Stefan Helmly has authored 12 papers receiving a total of 375 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Electrical and Electronic Engineering, 7 papers in Renewable Energy, Sustainability and the Environment and 3 papers in Polymers and Plastics. Recurrent topics in Stefan Helmly's work include Fuel Cells and Related Materials (12 papers), Electrocatalysts for Energy Conversion (7 papers) and Advanced battery technologies research (4 papers). Stefan Helmly is often cited by papers focused on Fuel Cells and Related Materials (12 papers), Electrocatalysts for Energy Conversion (7 papers) and Advanced battery technologies research (4 papers). Stefan Helmly collaborates with scholars based in Germany, Canada and United States. Stefan Helmly's co-authors include K. Andreas Friedrich, Renate Hiesgen, Tobias Morawietz, Rami Abouatallah, Svenja Kolb, Philipp Lettenmeier, Fabian Burggraf, Josef Kallo, Aldo Saul Gago and Mathias Schulze and has published in prestigious journals such as Journal of Power Sources, Journal of The Electrochemical Society and Electrochimica Acta.

In The Last Decade

Stefan Helmly

10 papers receiving 363 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Stefan Helmly Germany 9 338 210 112 79 66 12 375
Fabrizio Ganci Italy 11 393 1.2× 263 1.3× 207 1.8× 83 1.1× 116 1.8× 25 512
Jason Pfeilsticker United States 8 371 1.1× 234 1.1× 102 0.9× 43 0.5× 112 1.7× 16 399
Devashish Kulkarni United States 9 529 1.6× 343 1.6× 236 2.1× 61 0.8× 130 2.0× 14 621
Congfan Zhao China 9 339 1.0× 227 1.1× 168 1.5× 59 0.7× 93 1.4× 15 428
Fredy Nandjou France 8 321 0.9× 407 1.9× 34 0.3× 42 0.5× 209 3.2× 11 510
T.B. Ferriday Norway 8 300 0.9× 219 1.0× 60 0.5× 38 0.5× 99 1.5× 14 369
Ph. Vermeiren Belgium 8 300 0.9× 162 0.8× 145 1.3× 58 0.7× 106 1.6× 10 382
Xiong Peng United States 13 500 1.5× 319 1.5× 257 2.3× 91 1.2× 132 2.0× 19 611
Amir Peyman Soleymani United States 10 247 0.7× 219 1.0× 32 0.3× 31 0.4× 109 1.7× 18 335
Malikah Najibah South Korea 6 416 1.2× 171 0.8× 140 1.3× 63 0.8× 68 1.0× 8 473

Countries citing papers authored by Stefan Helmly

Since Specialization
Citations

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

Fields of papers citing papers by Stefan Helmly

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Stefan Helmly

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

All Works

12 of 12 papers shown
1.
Talukdar, Krishan, Stefan Helmly, Mathias Schulze, et al.. (2019). Enveloping of catalyst powder by ionomer for dry spray coating in polymer electrolyte membrane fuel cells. Journal of Power Sources. 424. 82–90. 15 indexed citations
2.
Sánchez, Daniel García, et al.. (2017). Local impact of humidification on degradation in polymer electrolyte fuel cells. Journal of Power Sources. 352. 42–55. 56 indexed citations
3.
Helmly, Stefan, Mohammad J. Eslamibidgoli, K. Andreas Friedrich, & Michael Eikerling. (2017). Local Impact of Pt Nanodeposits on Ionomer Decomposition in Polymer Electrolyte Membranes. Electrocatalysis. 8(6). 501–508. 16 indexed citations
4.
Lettenmeier, Philipp, Rami Abouatallah, Stefan Helmly, et al.. (2016). Durable Membrane Electrode Assemblies for Proton Exchange Membrane Electrolyzer Systems Operating at High Current Densities. Electrochimica Acta. 210. 502–511. 148 indexed citations
5.
Helmly, Stefan, et al.. (2014). Influence of the Distribution of Platinum Deposits on the Properties and Degradation of Platinum-Impregnated Nafion Membranes. Journal of The Electrochemical Society. 161(14). F1416–F1426. 21 indexed citations
6.
Hiesgen, Renate, et al.. (2013). Atomic Force Microscopy Studies of Conductive Nanostructures in Solid Polymer Electrolytes. ECS Transactions. 58(1). 595–605.
7.
Hiesgen, Renate, Stefan Helmly, Tobias Morawietz, et al.. (2013). Atomic force microscopy studies of conductive nanostructures in solid polymer electrolytes. Electrochimica Acta. 110. 292–305. 30 indexed citations
8.
Helmly, Stefan, et al.. (2013). Influence of Platinum Precipitation on Properties and Degradation of Nafion® Membranes. ECS Transactions. 58(1). 969–990. 9 indexed citations
9.
Helmly, Stefan, Renate Hiesgen, Tobias Morawietz, et al.. (2013). Microscopic Investigation of Platinum Deposition in PEMFC Cross-Sections Using AFM and SEM. Journal of The Electrochemical Society. 160(6). F687–F697. 28 indexed citations
10.
Hiesgen, Renate, et al.. (2012). Microscopic Analysis of Current and Mechanical Properties of Nafion® Studied by Atomic Force Microscopy. Membranes. 2(4). 783–803. 44 indexed citations
11.
Hiesgen, Renate, Stefan Helmly, Andrea Haug, et al.. (2011). Atomic force microscopy and infrared analysis of aging processes of polymer electrolyte membrane fuel cell components. Journal of Electroanalytical Chemistry. 662(1). 240–250. 8 indexed citations
12.
Hiesgen, Renate, Stefan Helmly, K. Andreas Friedrich, et al.. (2011). Analysis of Aged Polymer Electrolyte Fuel Cell (PEFC) Components by Non Traditional Methods. ECS Transactions. 35(34). 259–269.

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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