00608naa#a2200193#i#450# EN\\bibl\116531 20260316154349.1 3034-4689 20260226b2026####ek#y0engy0150####ca RU FEATURES OF ELECTROCHEMICAL SYNTHESIS OF MANGANESE DIOXIDE FROM SECONDARY RAW MATERIALS Journal article Kazan Kazan National Research Technological University 2026 3 с. Journal article local Burmistrov Leon Olegovich Biryukov A. I. Makogon A. G. Yarullin A. R. vestniktu.ru