| Fuel cells-fundamentals and applications L Carrette, KA Friedrich, U Stimming Fuel cells 1, 2001 | 2221 | 2001 |
| Fuel cells: principles, types, fuels, and applications L Carrette, KA Friedrich, U Stimming ChemPhysChem 1 (4), 162-193, 2000 | 1385 | 2000 |
| Solar chimneys part I: principle and construction of the pilot plant in Manzanares W Haaf, K Friedrich, G Mayr, J Schlaich International Journal of solar energy 2 (1), 3-20, 1983 | 983 | 1983 |
| A review of platinum-based catalyst layer degradation in proton exchange membrane fuel cells S Zhang, XZ Yuan, JNC Hin, H Wang, KA Friedrich, M Schulze Journal of power sources 194 (2), 588-600, 2009 | 813 | 2009 |
| Investigations of lithium–sulfur batteries using electrochemical impedance spectroscopy NA Canas, K Hirose, B Pascucci, N Wagner, KA Friedrich, R Hiesgen Electrochimica Acta 97, 42-51, 2013 | 471 | 2013 |
| Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry N Fujiwara, KA Friedrich, U Stimming Journal of Electroanalytical Chemistry 472 (2), 120-125, 1999 | 364 | 1999 |
| Nanosized IrOx–Ir Catalyst with Relevant Activity for Anodes of Proton Exchange Membrane Electrolysis Produced by a Cost‐Effective Procedure P Lettenmeier, L Wang, U Golla‐Schindler, P Gazdzicki, NA Cañas, ... Angewandte Chemie 128 (2), 752-756, 2016 | 318 | 2016 |
| Comprehensive investigation of novel pore-graded gas diffusion layers for high-performance and cost-effective proton exchange membrane electrolyzers P Lettenmeier, S Kolb, N Sata, A Fallisch, L Zielke, S Thiele, AS Gago, ... Energy & Environmental Science 10 (12), 2521-2533, 2017 | 312 | 2017 |
| Modified Nafion®-based membranes for use in direct methanol fuel cells P Dimitrova, KA Friedrich, U Stimming, B Vogt Solid state ionics 150 (1-2), 115-122, 2002 | 308 | 2002 |
| Protective coatings on stainless steel bipolar plates for proton exchange membrane (PEM) electrolysers AS Gago, SA Ansar, B Saruhan, U Schulz, P Lettenmeier, NA Cañas, ... Journal of Power Sources 307, 815-825, 2016 | 274 | 2016 |
| CO adsorption and oxidation on a Pt (111) electrode modified by ruthenium deposition: an IR spectroscopic study KA Friedrich, KP Geyzers, U Linke, U Stimming, J Stumper Journal of Electroanalytical Chemistry 402 (1-2), 123-128, 1996 | 266 | 1996 |
| In-situ X-ray diffraction studies of lithium–sulfur batteries NA Cañas, S Wolf, N Wagner, KA Friedrich Journal of power sources 226, 313-319, 2013 | 261 | 2013 |
| Investigation of the solid electrolyte interphase formation at graphite anodes in lithium-ion batteries with electrochemical impedance spectroscopy M Steinhauer, S Risse, N Wagner, KA Friedrich Electrochimica Acta 228, 652-658, 2017 | 255 | 2017 |
| A high-performance, durable and low-cost proton exchange membrane electrolyser with stainless steel components S Stiber, N Sata, T Morawietz, SA Ansar, T Jahnke, JK Lee, A Bazylak, ... Energy & Environmental Science 15 (1), 109-122, 2022 | 248 | 2022 |
| Transport properties of ionomer composite membranes for direct methanol fuel cells P Dimitrova, KA Friedrich, B Vogt, U Stimming Journal of Electroanalytical Chemistry 532 (1-2), 75-83, 2002 | 247 | 2002 |
| Porous transport layers for proton exchange membrane electrolysis under extreme conditions of current density, temperature, and pressure S Stiber, H Balzer, A Wierhake, FJ Wirkert, J Roth, U Rost, M Brodmann, ... Advanced Energy Materials 11 (33), 2100630, 2021 | 232 | 2021 |
| Increasing the performance of an anion-exchange membrane electrolyzer operating in pure water with a nickel-based microporous layer F Razmjooei, T Morawietz, E Taghizadeh, E Hadjixenophontos, L Mues, ... Joule 5 (7), 1776-1799, 2021 | 228 | 2021 |
| Durable membrane electrode assemblies for proton exchange membrane electrolyzer systems operating at high current densities P Lettenmeier, R Wang, R Abouatallah, S Helmly, T Morawietz, ... Electrochimica Acta 210, 502-511, 2016 | 221 | 2016 |
| Towards developing a backing layer for proton exchange membrane electrolyzers P Lettenmeier, S Kolb, F Burggraf, AS Gago, KA Friedrich Journal of Power Sources 311, 153-158, 2016 | 214 | 2016 |
| Performance and methanol permeation of direct methanol fuel cells: dependence on operating conditions and on electrode structure V Gogel, T Frey, Z Yongsheng, KA Friedrich, L Jörissen, J Garche Journal of Power Sources 127 (1-2), 172-180, 2004 | 210 | 2004 |
