Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: A green and economical vapor-assisted ozone treatment process for surface functionalization of carbon nanotubes
作者: Luo, Jingjie;  Liu, Yuefeng;  Wei, Hua;  Wang, Bolun;  Wu, Kuang-Hsu;  Zhang, Bingsen;  Su, Dang Sheng
发表日期: 2017-2-21
摘要: We report herein a green and economical strategy for oxidative modification of carbon nanotubes (CNT) by a facile ozone treatment in the presence of solvent vapor (H2O, 30% H2O2 solution and ethanol). This procedure is able to introduce a considerable level of oxygen groups with a dominant population of carboxyl groups at near ambient temperature. The optimization study of the process provides the reaction temperature and time, as well as the source and partial pressure of the vapor, key parameters determining the oxidation efficiency. The process efficiency and sustainability are assessed to compare with conventional oxidative treatment (e.g., nitric acid oxidation). Ozone treatment assisted by water or H2O2/H2O vapor can introduce abundant oxygenated groups on the sidewalls of CNT, and the process with H2O2/ H2O vapor can deliver a much higher selectivity towards carboxyl species on the sidewalls of CNT. With the appropriate functionalization temperature (40 degrees C) and incremental partial pressure of vapor, the surface defect and oxygen content on the CNT could be dramatically increased. The ozone treated CNT can be used for diverse applications such as metal-free catalyst and support; the modified CNT display higher activity for the ring-opening reaction of styrene oxide than HNO3 treated CNT and develop strong interaction for anchoring iron oxide nanoparticles even up to 350 degrees C. This ozone treatment in the presence of vapor could also be accomplished by using compressed air as the carrier gas, which can be considered an efficient and eco-friendly functionalization process.
刊名: ROYAL SOC CHEMISTRY
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.




Recommended Citation:
Luo, Jingjie,Liu, Yuefeng,Wei, Hua,et al. A Green And Economical Vapor-assisted Ozone Treatment Process For Surface Functionalization Of Carbon Nanotubes[J]. Royal Soc Chemistry,2017,19(4):1052-1062.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Luo, Jingjie]'s Articles
 [Liu, Yuefeng]'s Articles
 [Wei, Hua]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Luo, Jingjie]‘s Articles
 [Liu, Yuefeng]‘s Articles
 [Wei, Hua]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace