公开(公告)号：US20130101497A1

公开(公告)日：2013-04-25

申请号：US13655949

申请日：2012-10-19

Applicant: SHOWA DENKO K.K.

Inventor： Fanil A. MAKHMUTOV ,  Eugeny I. LOGUNOV ,  Kenji SHINOZAKI

IPC: C01B31/04 ,  C07C61/125 ,  B82Y40/00

CPC classification number: C01B32/225 ,  C01B32/22

Abstract: A low-temperature process for preparing flat carbon based nanostructured material, and namely foliated, fine graphite particles having low thickness and high aspect ratio. The process comprises the steps of: subjecting a particulate graphite to a mechanical attrition treatment in the presence of an alkaline reactant or a mixture comprising the alkaline reactant; exposing the graphite particles to an intercalating solvent to cause the solvent to penetrate between carbon layers of graphite; and delivering an ultrasonic energy into a dispersion of the graphite particles for a period of time sufficient to cause the formation of the nanostructured material. The carbon based nanostructures (CBNS) obtained by this method have a thickness in the range of 4-20 nm and an aspect ratio 500-7000 and various surface chemistry, and can be used as a highly functional graphite material in a wide range of applications, in particular for electrochemical applications in batteries and fuel cells.

Abstract translation: 用于制备平碳基纳米结构材料的低温方法，即具有低厚度和高纵横比的叶片状细石墨颗粒。 该方法包括以下步骤：在碱性反应物或包含碱性反应物的混合物的存在下对颗粒状石墨进行机械磨损处理; 将石墨颗粒暴露于嵌入溶剂中以使溶剂渗入石墨的碳层之间; 并将超声波能量输送到石墨颗粒的分散体中足以引起纳米结构材料形成的时间。 通过该方法获得的碳纳米结构（CBNS）具有4-20nm的厚度和500-7000的纵横比和各种表面化学性质，并且可以在广泛的应用中用作高度功能的石墨材料 ，特别是用于电池和燃料电池中的电化学应用。