The compositions with high catalytic activity consisting of a carrier (foam material), an intermediate oxide layer, and a complex oxide catalytic coating were studied. On the basis of compositions of optimized compositions, thermocatalytic devices for neutralization of complex toxic substances in gases for the chemical industry, transport and heat power engineering were created. An electrocatalytic device for continuous dehydration of natural gas with electrolytic regeneration was developed, patented and successfully tested. The device enables uninterrupted operation of internal combustion engines using more environmentally friendly fuel in all climatic conditions.