J. Lilloja, E. Kibena-Põldsepp, A. Sarapuu, M. Käärik (Institute of Chemistry, University of Tartu), J. Kozlova (Institute of Physics, University of Tartu), P. Paiste (Institute of Ecology and Earth Sciences, University of Tartu), A. Kikas (Institute of Physics, University of Tartu), A. Treshchalov (University of Tartu), J. Leis (Institute of Chemistry, University of Tartu), A. Tamm, V. Kisand (University of Tartu), S. Holdcroft (Department of Chemistry, Simon Fraser University), and K. Tammeveski (Institute of Chemistry, University of Tartu)

M. Kutter, A. Hilgert, W. Hagemeier (Electrochemical Process Engineering, University of Bayreuth), A. Rosin, T. Gerdes (Department of Ceramic Materials Engineering, University of Bayreuth), and C. Roth (Electrochemical Process Engineering, University of Bayreuth)

A. Balčiūnaitė, Ž. Činčienė, L. Tamasiunaite, J. Vaičiūnienė, and E. Norkus (Department of Catalysis, Center for Physical Sciences and Technology)

A. Kregar, A. Kravos, and T. Katrašnik (University of Ljubljana, Faculty of Mechanical Engineering)

J. Roh (Korea Advanced Institute of Science and Technology (KAIST)), A. Cho (Pohang University of Science and Technology (POSTECH)), S. Kim (Seoul National University), K. S. Lee (Pohang Accelerator Laboratory-POSTECH), J. Shin, J. Bak, S. Lee, D. Song, E. J. Kim (Korea Advanced Institute of Science and Technology (KAIST)), Y. H. Cho (Kangwon National University), J. W. Han (Pohang University of Science and Technology (POSTECH)), and E. Cho (Korea Advanced Institute of Science and Technology (KAIST))

S. Holmes (University of Manchester), J. Chen (The University of Manchester), M. Perez-Page, and Z. Guo (University of Manchester)

N. Quoc Hao and K. Jinsoo (Kyung Hee University)

V. Berova (Freudenberg Fuel Cell e-Power Systems GmbH), A. Garzón Manjón, M. Vega-Paredes, C. Scheu (Max-Planck-Institut für Eisenforschung GmbH), and T. Jurzinsky (Freudenberg Fuel Cell e-Power Systems GmbH)

K. Kaare, I. Kruusenberg (National Institute of Chemical Physics and Biophysics), A. Volperts, G. Dobele, and A. Zhurinsh (Latvian State Institute of Wood Chemistry)

B. A. Brandes, D. Kelly, P. Liu, T. W. Hansen, J. O. O. Jensen, Q. Li, and L. Cleemann (Technical University of Denmark)

S. S. Hardisty and D. Zitoun (Bar-Ilan University)

I. Tolj, Z. Penga, P. Bosnic, and G. Radica (FESB, University of Split)

M. G. Kim, D. W. Lee, D. Choi, and S. J. Y. Yoo (Korea Institute of Science and Technology)

Z. I. Rana (University College London), J. Feng (Imperial College London), E. Magliocca (University College London), P. McAlernon (Drumlins Energy), T. S. Miller (University College London), M. Titirici (Imperial College London, Chemical Engineering Department), and D. Brett (University College London)