TY JOUR TI FEATURES OF ELECTROCHEMICAL SYNTHESIS OF MANGANESE DIOXIDE FROM SECONDARY RAW MATERIALS KW ELECTROLYSIS KW MANGANESE DIOXIDE KW RAMAN SPECTROSCOPY KW X-RAY DIFFRACTION KW RECYCLING JO Herald of Technological University AU Burmistrov, L.O. AU Biryukov, A.I. AU Makogon, A.G. AU Yarullin, A.R. PY 2026 IS 29 PB Kazan National Research Technological University