公开(公告)号：WO2015109272A1

公开(公告)日：2015-07-23

申请号：PCT/US2015/011882

申请日：2015-01-17

申请人： THE TRUSTEES OF DARTMOUTH COLLEGE

发明人： WEGST, Ulrike, G.K. ,  HERRON, David ,  KRETSCHMAR, Marco ,  BAUER, Samuel ,  QIU, Kaiyan

IPC分类号： C01B31/02

CPC分类号： C04B35/52 ,  C01B32/05 ,  C02F1/4691 ,  C02F2001/46133 ,  C04B35/532 ,  C04B38/061 ,  C04B2111/00793 ,  C04B2111/00844 ,  C04B2111/94 ,  C04B2235/5248 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5288 ,  C04B2235/606 ,  C04B2235/652 ,  C04B2235/77 ,  C04B2235/96 ,  H01G11/36 ,  H01G11/38 ,  H01M4/133 ,  Y02E60/13 ,  C04B38/0051 ,  C04B38/0074

摘要： A composition of matter, and method of manufacture, of a material having a porous mass including a bound and reduced composite of graphene formed by in-situ reduction of graphene oxide, and either carbon nanotubes or carbon nanofibers. In particular embodiments, the mass is directionally porous, with pores having average length over 10,000 microns and average cross sectional area less than 2500 square microns and more than 25 square microns. In embodiments, heat treatment at between 400 and 2000 degrees Celsius in non-oxidizing atmosphere is used to reduce graphene oxide to graphene while binding the graphene to the carbon nanotubes or nanofibers, in an alternative embodiment graphene oxide is reduced chemically. Graphene and/or graphene oxide is present at a ratio between 2:1 and 1:4 in proportion to carbon nanotubes or nanofibers. The material can be made with porosity 75 to 99 percent.

摘要翻译： 具有通过氧化石墨烯原位还原形成的石墨烯的结合和还原复合物的多孔质量材料和碳纳米管或碳​​纳米纤维的物质组成和制造方法。 在具体实施方案中，质量是定向多孔的，孔的平均长度大于10,000微米，平均横截面积小于2500平方微米，大于25平方微米。 在实施方案中，在非氧化气氛中在400至2000摄氏度之间的热处理用于将石墨烯氧化物还原成石墨烯，同时将石墨烯与碳纳米管或纳米纤维结合，在替代实施方案中，氧化铟化学还原。 石墨烯和/或石墨烯氧化物以与碳纳米管或纳米纤维成比例的2:1和1:4的比例存在。 该材料可以用75％至99％的孔隙制成。

公开(公告)号：WO2012109284A3

公开(公告)日：2012-08-16

申请号：PCT/US2012/024200

申请日：2012-02-07

申请人： THE TRUSTEES OF DARTMOUTH COLLEGE ,  WEGST, Ulrike, G.K. ,  HUNGER, Philipp, M.

发明人： WEGST, Ulrike, G.K. ,  HUNGER, Philipp, M.

IPC分类号： A61L27/56 ,  A61L27/44 ,  A61L27/04 ,  A61L27/20

摘要： A metal-polymer composite scaffold includes metal particles coupled with polymer binder, the scaffold having regions of aligned porosity with a gradient. In a particular embodiment, the metal particles include stainless steel. The metal particles have sizes equal to or smaller than 3 μηι. The scaffold has Young's modulus is below 950 MPa. The polymer binder includes chitosan and gelatin. The composite also includes ethanol. The composite has porosity of at least 70%. Systems and methods for producing such metal polymer composite scaffold are also provided.