公开(公告)号：KR1020030003890A

公开(公告)日：2003-01-14

申请号：KR1020010039742

申请日：2001-07-04

Applicant: 한국화학연구원

Inventor： 류호진 ,  최원경 ,  윤형석

IPC: C01B31/02 ,  B82B3/00 ,  B82Y40/00

CPC classification number: C01B32/17 ,  C01B3/0021 ,  C01B2202/30 ,  C01B2203/066 ,  H01M8/04216

Abstract: PURPOSE: A method for purifying carbon nanotube for hydrogen storage is provided to improve storage capacity of hydrogen by purifying carbon nanotube using nitric acid, wherein the carbon nanotube is synthesized by thermal chemical vapor deposition using nickel catalyst. CONSTITUTION: The method for purifying carbon nanotube for hydrogen storage comprises the processes of preparing a mixture of nitric acid and carbon nanotube by uniformly mixing 4 to 9 moles of nitric acid with carbon nanotube in a weight ratio of 4:1; heating the mixture in the temperature range of a room temperature to 120 deg.C for 1 to 48 hours; cooling the heated mixture to a room temperature; and drying the carbon nanotube after obtaining carbon nanotube by filtering the mixture cooled to the room temperature using a polymer filter paper, wherein concentration of nitric acid is 6 to 7 moles, heating temperature is from 90 to 120 deg.C, and heating time is from 4 to 6 hours.

Abstract translation: 目的：提供一种净化用于储氢的碳纳米管的方法，通过使用硝酸净化碳纳米管来提高氢的储存能力，其中通过使用镍催化剂的热化学气相沉积合成碳纳米管。 构成：用于氢存储的碳纳米管的净化方法包括通过以4:1的重量比将4〜9摩尔硝酸与碳纳米管均匀混合来制备硝酸和碳纳米管的混合物的方法; 将混合物在室温至120℃的温度范围内加热1至48小时; 将加热的混合物冷却至室温; 并使用聚合物滤纸过滤冷却至室温的混合物，在得到碳纳米管之后干燥碳纳米管，其中硝酸浓度为6〜7摩尔，加热温度为90〜120℃，加热时间为 从4到6小时。