Catalytic activity of palladium catalysts with two different types of carbon support, Norit (an activated carbon), and bamboo-shaped carbon nanotubes (BCNT) have been tested for benzophenone hydrogenation. The selectivity toward the two possible reaction products (benzhydrol and diphenylmethane) can be directed by the catalyst support. It has been found that the Norit support preferred the over-hydrogenation of benzhydrol to diphenylmethane. The BCNT support proved to be much more selective and resulted as much as 99.3% benzhydrol selectivity at 96.3% benzophenone conversion. The high benzhydrol selectivity might be explained by the presence of covalently bonded nitrogen atoms in the catalyst (BCNT: 6.19 w/w%, Norit 0.54 w/w%) that can inhibit the over-hydrogenation process, thereby BCNTs are better catalyst supports for benzhydrol production than the commonly used activated carbon–supported catalysts.

已测试了具有两种不同类型的碳载体Norit（一种活性炭）和竹形碳纳米管（BCNT）的钯催化剂的二苯甲酮加氢催化活性。可以通过催化剂载体指导对两种可能的反应产物（苯并氢和二苯甲烷）的选择性。已经发现，诺芮特载体优选将苯氢过氢化成二苯甲烷。事实证明，BCNT载体具有更高的选择性，在96.3％的二苯甲酮转化率下，苯甲酸选择性高达99.3％。苯酚的高选择性可以用催化剂中共价键合的氮原子（BCNT：6.19 w / w％，Norit 0.54 w / w％）的存在来解释，它可以抑制过度氢化过程，