发明授权
- 专利标题: Unitary graphene layer or graphene single crystal
- 专利标题(中): 单一石墨烯层或石墨烯单晶
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申请号: US13694356申请日: 2012-11-26
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公开(公告)号: US09533889B2公开(公告)日: 2017-01-03
- 发明人: Aruna Zhamu , Mingchao Wang , Wei Xiong , Bor Z. Jang
- 申请人: Aruna Zhamu , Mingchao Wang , Wei Xiong , Bor Z. Jang
- 申请人地址: US OH Dayton
- 专利权人: Nanotek Instruments, Inc.
- 当前专利权人: Nanotek Instruments, Inc.
- 当前专利权人地址: US OH Dayton
- 主分类号: B32B9/00
- IPC分类号: B32B9/00 ; C01B31/04 ; C30B5/00 ; C30B29/02 ; C30B29/68 ; B82Y30/00 ; B82Y40/00
摘要:
A unitary graphene layer or graphene single crystal containing closely packed and chemically bonded parallel graphene planes having an inter-graphene plane spacing of 0.335 to 0.40 nm and an oxygen content of 0.01% to 10% by weight, which unitary graphene layer or graphene single crystal is obtained from heat-treating a graphene oxide gel at a temperature higher than 100° C., wherein the average mis-orientation angle between two graphene planes is less than 10 degrees, more typically less than 5 degrees. The molecules in the graphene oxide gel, upon drying and heat-treating, are chemically interconnected and integrated into a unitary graphene entity containing no discrete graphite flake or graphene platelet. This graphene monolith exhibits a combination of exceptional thermal conductivity, electrical conductivity, mechanical strength, surface smoothness, surface hardness, and scratch resistance unmatched by any thin-film material of comparable thickness range.
公开/授权文献
- US20140147648A1 Unitary graphene layer or graphene single crystal 公开/授权日:2014-05-29