Samples of catalysts obtained by impregnating activated carbon with the oxides NiO and Al₂O₃ were investigated. It was shown that increase in the ratio of nickel and aluminum cations in the impregnating solution from 2:1 to 3:1 leads to decrease in the average pore diameter and to increase in the specific surface area of the activated carbon by 1.5 times. Activated carbons impregnated by nickel and aluminum oxides with the metal cation of the impregnating solution in a ratio of 3:1 and calcined in a stream of hydrogen have the largest surface area in pores with diameter of 10-200 nm. Heat treatment of the nickel–aluminum oxide catalysts on a carbon support at 450°С in a stream of hydrogen leads to increase of the pore size and to decrease of the specific surface area. Mechanical activation of the oxide catalysts on the carbon support by ultrasonic treatment increases the outer surface area of the particles by more than twice.

_{通过用氧化物 NiO 和 Al 2} O ₃浸渍活性炭获得的催化剂样品进行了调查。结果表明，浸渍溶液中镍和铝阳离子的比例从 2:1 增加到 3:1，导致平均孔径减小，活性炭的比表面积增加 1.5 倍。用镍和氧化铝与浸渍溶液的金属阳离子按3:1的比例浸渍并在氢气流中煅烧的活性炭在直径为10-200nm的孔中具有最大的表面积。在 450°С 的氢气流中对碳载体上的镍-氧化铝催化剂进行热处理会导致孔径增大和比表面积减小。通过超声处理对碳载体上的氧化物催化剂进行机械活化，使颗粒的外表面积增加了两倍以上。