Oxygen electroreduction on Zinc and Dilithium phthalocyanine modified multiwalled carbon nanotubes in alkaline mediaTürk, Karl-Kalev; Kaare, Kätlin; Kruusenberg, Ivar; Merisalu, Maido; Joost, Urmas; Matisen, Leonard; Sammelselg, Väino; Zagal, José H.; Tammeveski, KaidoJournal of the Electrochemical Society2017 / p. H338-H344 : ill https://iopscience.iop.org/article/10.1149/2.0821706jes/pdf