FIELD: process engineering.
SUBSTANCE: invention relates to activation of metal oxide catalysts. Proposed method uses oxides of VIII-group metals as catalysts and consists in that salts of VIII-group metals and magnesium nitrate are used as initial material and decomposed by thermal decomposition of precursor water solution. Prior to calcination, the latter is subjected to effects of super high frequency fields with circular polarisation at 2.45 GHz fir 5-40 s. Thereafter, said solution is calcinated at 600-650°C for 30 min.
EFFECT: higher yield of nanotubes.
4 dwg
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