Physico-Chemical Properties of Са3Со4O9+δ and Development of the Composite Electrodes on its Basis With BaCe0,5Zr0,3Y0,1Yb0,1O3-δ Electrolyte / E. A. Filonova, E. S.Tokareva, A. A. Kolchugin // XXI Mendeleev Congress on general and applied chemistry, 9-13 September, 2019, Saint Petersburg : book of abstract in 6 volumes. - Saint Petersburg, 2019. - Vol. 3 : Physical chemistry of metallurgical processes. Energy efficiency, environmental safety and risk management of chemical industry. Chemical aspects of modern energetics and alternative enerhy resources. - 2019. - P. 397.