Ni-Ce/Alb>2b>Ob>3b> and Ni-Pt/Alb>2b>Ob>3b> catalysts are reduced by γ-rays or Hb>2b>-treatment.
Nanosized intermetallic compounds are formed in the radiation-reduced catalysts.
Ce segregates as CeOb>2b> in Ni-Ce/Alb>2b>Ob>3b>(Hb>2b>). None of bimetallic phases was detected.
The radiolytic catalysts display high performances in the benzene hydrogenation.
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