发明名称 |
MASS PRODUCTION OF PRISTINE NANO GRAPHENE MATERIALS |
摘要 |
<p>The present invention provides a method of producing pristine or non-oxidized nano graphene platelets (NGPs) that are highly conductive. The method comprises: (a) providing a pristine graphitic material comprising at least a graphite crystallite having at least a graphene plane and an edge surface; (b) dispersing multiple particles of the pristine graphitic material in a liquid medium containing therein no surfactant to produce a suspension, wherein the multiple particles in the liquid have a concentration greater than 0.1 mg/mL and the liquid medium is characterized by having a surface tension that enables wetting of the liquid on a graphene plane exhibiting a contact angle less than 90 degrees; and (c) exposing the suspension to direct ultrasonication at a sufficient energy or intensity level for a sufficient length of time to produce the NGPs. Pristine NGPs can be used as a conductive additive in transparent electrodes for solar cells or flat panel displays (e.g., to replace expensive indium-tin oxide), battery and supercapacitor electrodes, and nanocomposites for electromagnetic wave interference (EMI) shielding, static charge dissipation, and fuel cell bipolar plate applications.</p> |
申请公布号 |
WO2011014347(A1) |
申请公布日期 |
2011.02.03 |
申请号 |
WO2010US41652 |
申请日期 |
2010.07.12 |
申请人 |
ZHAMU, ARUNA;JANG, BOR, Z. |
发明人 |
ZHAMU, ARUNA;JANG, BOR, Z. |
分类号 |
H01B1/00;B82B1/00 |
主分类号 |
H01B1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|