期刊
MATERIALS TODAY CHEMISTRY
卷 19, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mtchem.2020.100409
关键词
Catalysis; Ketone reduction; Benzhydrol; Carbon nanotubes
资金
- European Union - European Regional Development Fund [GINOP-2.3.4-15-2016-00004]
The study found that the BCNT support exhibited higher selectivity towards benzhydrol during the hydrogenation of benzophenone, possibly due to the presence of covalently bonded nitrogen atoms that can inhibit over-hydrogenation processes.
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. (C) 2020 The Author(s). Published by Elsevier Ltd.
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