公开(公告)号：US09567225B2

公开(公告)日：2017-02-14

申请号：US14513813

申请日：2014-10-14

申请人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

发明人： Yi Lin ,  Jae-Woo Kim ,  John W. Connell ,  Michael R. Funk ,  Caroline J. Campbell

IPC分类号： C01B31/04 ,  C01B31/08 ,  C01B31/02

CPC分类号： C01B31/08 ,  C01B32/152 ,  C01B32/168 ,  C01B32/194 ,  C01B32/20 ,  C01B32/225 ,  C01P2006/16

摘要： Methods for forming holey carbon allotropes and graphene nanomeshes are provided by the various embodiments. The various embodiments may be applicable to a variety of carbon allotropes, such as graphene, graphene oxide, reduced graphene oxide, thermal exfoliated graphene, graphene nanoribbons, graphite, exfoliated graphite, expanded graphite, carbon nanotubes (e.g., single-walled carbon nanotubes, double-walled carbon nanotubes, few-walled carbon nanotubes, multi-walled carbon nanotubes, etc.), carbon nanofibers, carbon fibers, carbon black, amorphous carbon, fullerenes, etc. The methods may produce holey carbon allotropes without the use of solvents, catalysts, flammable gas, additional chemical agents, or electrolysis to produce the pores (e.g., holes, etc.) in the carbon allotropes. In an embodiment, a carbon allotrope may be heated at a working window temperature for a working period of time to create holes in the carbon allotrope.

摘要翻译： 用于形成多孔碳同素异形体和石墨烯纳米颗粒的方法由各种实施方案提供。 各种实施方案可以应用于各种碳同素异形体，例如石墨烯，氧化石墨烯，氧化还原性氧化石墨，热剥离石墨烯，石墨烯纳米带，石墨，剥离石墨，膨胀石墨，碳纳米管（例如单壁碳纳米管， 双壁碳纳米管，几壁碳纳米管，多壁碳纳米管等），碳纳米纤维，碳纤维，炭黑，无定形碳，富勒烯等。该方法可以生产不含溶剂的多孔碳同素异形体 ，催化剂，易燃气体，附加化学试剂或电解以产生碳同素异形体中的孔（例如孔等）。 在一个实施方案中，碳同素异形体可以在工作窗口温度下加热一段工作时间以在碳同素异形体中产生孔。

公开(公告)号：US10259077B2

公开(公告)日：2019-04-16

申请号：US14666998

申请日：2015-03-24

申请人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

发明人： Christopher J. Wohl, Jr. ,  Marcus A. Belcher ,  John W. Connell ,  John W. Hopkins

IPC分类号： B23K26/362 ,  B23K26/40 ,  B23K26/352 ,  B32B38/10 ,  B23K26/354 ,  B08B17/06 ,  G02B1/12 ,  B23K26/00 ,  B23K103/10 ,  B23K103/14 ,  B23K103/16 ,  B23K103/00

摘要： Surface energy of a substrate is changed without the need for any template, mask, or additional coating medium applied to the substrate. At least one beam of energy directly ablates a substrate surface to form a predefined topographical pattern at the surface. Each beam of energy has a width of approximately 25 micrometers and an energy of approximately 1-500 microJoules. Features in the topographical pattern have a width of approximately 1-500 micrometers and a height of approximately 1.4-100 micrometers.

公开(公告)号：US09475973B2

公开(公告)日：2016-10-25

申请号：US14225757

申请日：2014-03-26

申请人： The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

发明人： Robin E. Southward ,  Donavon Mark Delozier ,  Kent A. Watson ,  Joseph G. Smith, Jr. ,  Sayata Ghose ,  John W. Connell

IPC分类号： B32B5/16 ,  B05D7/00 ,  C09K5/14 ,  B22F9/24 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/02 ,  C01B31/04 ,  C08J5/00 ,  C22C1/05 ,  C22C1/10 ,  C22C26/00 ,  B22F1/00

CPC分类号： C09K5/14 ,  B22F1/0025 ,  B22F9/24 ,  B22F2998/00 ,  B22F2999/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/15 ,  C01B32/152 ,  C01B32/158 ,  C01B32/20 ,  C01B32/225 ,  C08J5/005 ,  C22C1/058 ,  C22C1/1084 ,  C22C26/00 ,  C22C2026/001 ,  C22C2026/002 ,  B22F1/025

摘要： In the method of embodiments of the invention, the metal seeded carbon allotropes are reacted in solution forming zero valent metallic nanowires at the seeded sites. A polymeric passivating reagent, which selects for anisotropic growth is also used in the reaction to facilitate nanowire formation. The resulting structure resembles a porcupine, where carbon allotropes have metallic wires of nanometer dimensions that emanate from the seed sites on the carbon allotrope. These sites are populated by nanowires having approximately the same diameter as the starting nanoparticle diameter.

摘要翻译： 在本发明实施方案的方法中，金属接种碳同素异形体在形成零价金属纳米线的溶液中在接种部位反应。 用于各向异性生长的聚合物钝化试剂也用于反应以促进纳米线形成。 所得结构类似于豪猪，其中碳同素异形体具有从碳同素异形体上的种子位点发出的具有纳米尺寸的金属线。 这些位点由具有与起始纳米颗粒直径大致相同直径的纳米线填充。

公开(公告)号：US09783424B2

公开(公告)日：2017-10-10

申请号：US14311775

申请日：2014-06-23

申请人： The United States of America, as represented by the Administrator of the National Aeronautics and Space Administration

发明人： Ya-Ping Sun ,  John W. Connell ,  Lucia Monica Veca

IPC分类号： C08K9/00 ,  C01B31/04 ,  C09K5/14 ,  C08K5/14 ,  B82Y30/00 ,  C08K3/04 ,  C08K9/04

CPC分类号： C01B32/152 ,  B82Y30/00 ,  C01B32/22 ,  C01B32/225 ,  C08K3/04 ,  C08K5/14 ,  C08K9/04 ,  C08K2201/011 ,  C09K5/14

摘要： Disclosed are methods for forming carbon-based fillers as may be utilized in forming highly thermal conductive nanocomposite materials. Formation methods include treatment of an expanded graphite with an alcohol/water mixture followed by further exfoliation of the graphite to form extremely thin carbon nanosheets that are on the order of between about 2 and about 10 nanometers in thickness. Disclosed carbon nanosheets can be functionalized and/or can be incorporated in nanocomposites with extremely high thermal conductivities. Disclosed methods and materials can prove highly valuable in many technological applications including, for instance, in formation of heat management materials for protective clothing and as may be useful in space exploration or in others that require efficient yet light-weight and flexible thermal management solutions.