[en] The activity of deposited nickel catalysts was studied in benzaldehyde hydration dependina on the nature of other metal additions and the nature of carrier. Al₂O₃, TiO₂, SiO₂, ZrO₂ and their mixtures were used as carriers. Dependence o Ni/ZrO₂ catalyst activity on the quantity of incorporated metal additions is demonstrated. Introduction of 10% Cr or Al into Ni/ZrO₂ increases benzaldehyde hydration rate by 5.5 and 4.2 correspondingly. Simultaneously the decrease of potential displacement value on 40-50 mv is taking place which indicates the strengthening of hydrogen bond with the surface of a mixed nickel catalyst. Value of the apparent activation energy of benzaldehyde hydration is in the 5-9 cal/mol range. It was found that application of carriers and additions facilitating the strengthening of hydrogen bond with the surface of nickel catalyst, leads to obtaining of highly active nickel contacts for benzaldehyde hydration