ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ ПОЛИМЕТАЛЛИЧЕСКИХ ХИМИКО-КАТАЛИТИЧЕСКИХ ПОКРЫТИЙ ДЛЯ ЭЛЕКТРОХИМИЧЕСКОГО ГЕНЕРИРОВАНИЯ ВОДОРОДА

Ольга КОВАЛЕВА, Михаил ИВАНОВ*, Виктор КОВАЛЕВ, Юрий ПОЛУКАРОВ* Научный Центр прикладной и экологической химии *Институт физической химии и электрохимии им. А.Фрумкина, Москва

Abstract

The research results are presented related to the plating conditions, catalytic activity, chemical composition and properties of poly-metallic coatings Ni-Re-B, Ni-Mo-B and Ni-W-B. It was shown that the introduction of alloying elements (Re, Мо and W) into the composition of Ni-containing coatings will modify the catalytic activity of alloys’ surface with regard to the parallel reactions of heterogeneous hydrolysis of dimethylamine-boran, Ni reducing and evolving of molecular hydrogen. It was found that with the increase in alloying elements concentration, the contents in boron in the coatings will be decreased up to its trace amounts. The effect of alloys composition and structure on the overvoltage of hydrogen evolving was studied. Low over-voltage values on the alloys Ni-Re-B (11 at.%. Re) made it possible to use them for electrodes manufacturing and to propose the design of electrolytic cell for electrochemical generation of hydrogen from water with the improved technical-economic indicators.