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

题名: Reduced graphene oxide: a metal-free catalyst for aerobic oxidative desulfurization
作者: Gu, Qingqing;  Wen, Guodong;  Ding, Yuxiao;  Wu, Kuang-Hsu;  Chen, Chengmeng;  Su, Dangsheng
发表日期: 2017-2-21
摘要: Nanocarbons have been extensively used as metal-free alternatives to metal catalysts in many oxidative processes owing to their functional groups or defects, which have the activation ability toward oxygen molecules. Herein, reduced graphene oxide (rGO) could be used as catalysts in oxidative desulfurization reactions for the first time to remove sulfur-containing compounds from fuels. Superior catalytic activity and stability are obtained in the aerobic oxidative desulfurization process catalyzed by rGO. A broad range of sulfur-containing aromatic substrates could be removed effectively in this catalytic system. Carbonyl groups have proved to play crucial roles during the oxidation process based on an XPS analysis, a chemical titration method and a series of comparative experiments. The chemically active defects are also beneficial to the catalytic performance because carbonyl groups could be generated in situ on these defects under the reaction conditions. Based on the EPR results, a radical pathway is proposed. Oxygen molecules could interact with the carbon atoms adjacent to carbonyl groups to form adsorbed super oxygen anion radicals (rGO-OO), which then attack the adjacent sulfur-centered cation radicals and generate the final product sulfone.
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:
Gu, Qingqing,Wen, Guodong,Ding, Yuxiao,et al. Reduced Graphene Oxide: A Metal-free Catalyst For Aerobic Oxidative Desulfurization[J]. Royal Soc Chemistry,2017,19(4):1175-1181.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Gu, Qingqing]'s Articles
 [Wen, Guodong]'s Articles
 [Ding, Yuxiao]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Gu, Qingqing]‘s Articles
 [Wen, Guodong]‘s Articles
 [Ding, Yuxiao]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
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