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公开(公告)号:US11447391B2
公开(公告)日:2022-09-20
申请号:US15189545
申请日:2016-06-22
IPC分类号: C01B32/182 , C01B32/162 , C23C16/26 , C23C16/01 , C23C16/455 , B01J23/72 , B01J23/745 , B01J37/06 , B01J23/75 , B01J37/08 , B01J23/755 , C01B32/186
摘要: A method of growing a graphene coating or carbon nanotubes on a catalytic substrate by chemical vapor deposition is provided. In the method, the chemical vapor deposition is carried out in an atmosphere in which a ratio Pox/Pred is about 5×10−26 or less, wherein Pox is the partial pressure oxidizing species in the atmosphere and Pred is the partial pressure of reducing species in the atmosphere. A catalytic substrate coated with a graphene coating grown according to this method is also provided.
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公开(公告)号:US20210179433A1
公开(公告)日:2021-06-17
申请号:US17270298
申请日:2019-08-23
IPC分类号: C01B32/194
摘要: Chalcogen-grafted carbon material as well as their functionalized forms are described along with processes for their preparation. More specifically, the chalcogen is covalently linked to the carbon scaffold of a polyaromatic carbon via C═X and/or C—X—C bonds. Processes for their preparation include a single thermal treatment without the use of strong acids or anhydrous solvents.
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