{Editor's Note} doi:10.5599/jese.548 111 J. Electrochem. Sci. Eng. 8(2) (2018) 111; DOI: http://dx.doi.org/10.5599/jese.548 Open Access : : ISSN 1847-9286 www.jESE-online.org Editor’s Note This special issue is the second part of the proceedings of the 6th Regional Symposium on Electrochemistry – South East Europe (RSE–SEE 6), held in Balatonkenese, Hungary, from 11−15 June 2017 (part 1 has been published in J. Electrochem. Sci. Eng. 8(1) (2018)). These are some of the best papers presented at the RSE-SEE 6 meeting and reflect the broad interests of the electrochemical community, including both new techniques and application areas. Since its start in 2008, the series of RSE-SEE symposia provides a stimulating international forum for electrochemistry researchers to share their current research results. Following this tradition, more than 110 participants from 24 countries presented papers in Balatonkenese and discussed recent progress in electrochemistry and electrochemical engineering. I would like to thank the authors for their contribution, the reviewers for their professional work and the jESE-Editorial Office for their assistance in the Proceedings publication. Also, I would like to acknowledge the financial and other support of the Hungarian Academy of Sciences, the International Society of Electrochemistry, the Furukawa Electric Group, Jászplasztik, Ametek, Zahner, Metrohm, PalmSens, Ivium, and Paks Nuclear Power Plant. The next 7th Regional Symposium on Electrochemistry – South East Europe will be organized jointly with the 8th Kurt Schwabe Symposium in Croatia in the late spring of 2019. Gyözö G. Láng, Guest Editor ©2018 by the authors; licensee IAPC, Zagreb, Croatia. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/) http://dx.doi.org/10.5599/jese.548 http://www.jese-online.org/ http://creativecommons.org/licenses/by/4.0/)