[1] Natl Res Univ Moscow Power Engn Inst MPEI, Moscow, Russia
[2] Open Joint Stock Co Special Design Engn Bur Elect, Moscow, Russia
[3] Univ Western Cape, SAIAMC, HySA Syst Competence Ctr, Bellville, South Africa
[4] Tshwane Univ Technol, Dept Chem Met & Mat Engn, Pretoria, South Africa
[5] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka, Moscow Region, Russia