1. Department of Chemistry, BioCenter, Swedish University of Agricultural Sciences, Box 7015, 75007 Uppsala (Sweden)
2. CNRS UMR 6296, Institut de Chimie de Clermont‐Ferrand, Clermont Université, ENSCCF, BP 10448, F‐63177 Clermont‐Ferrand (France)
3. Department of Forest Products/Wood Science, Swedish University of Agricultural Sciences, Box 7008, 75007 Uppsala (Sweden)
4. National Institute for Laser, Plasma and Radiation Physics, P.O. Box MG‐36, RO 76900, Bucharest‐Magurele (Romania)
5. Department of Chemistry, Univ. Bucuresti, B‐dul Regina Elisabeta, nr. 4‐12, Sector 3, 030018 Bucuresti (Romania)
6. Electrochemical Energy Storage Department, Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439 (USA)