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Activation of Molecular Oxygen Using Durable Cobalt Encapsulated with Nitrogen-Doped Graphitic Carbon Shells for Aerobic Oxidation of Lignin-Derived Alcohols

文献类型：期刊论文

作者Sun, Yuxia1,2; Ma, Hong1; Luo, Yang1,2; Zhang, Shujing1,2; Gao, Jin1; Xu, Jie1
刊名CHEMISTRY-A EUROPEAN JOURNAL
出版日期2018-03-26
卷号24期号:18页码:4653-4661
关键词Carbon Cobalt Doping Nanoparticles Oxidation
ISSN号0947-6539
DOI10.1002/chem.201705824
文献子类Article
英文摘要It has long been a challenge for activating O-2 by transition-metal nanocatalysts, which might lose activity due to strong tendency for oxidation. Herein, O-2 could be activated by durable encapsulated cobalt nanoparticles (NPs) with N-doped graphitic carbon shells (Co@N-C), but not by encapsulated cobalt NPs with graphitic carbon, exposed cobalt NPs supported on activated carbon, or N-doped carbon. Electron paramagnetic resonance, real-time in situ FTIR spectroscopy, and mass spectrometry measurements demonstrated the generation of the highly active superoxide radical, O-2(.-). This unique ability enables Co@N-C to afford an excellent catalytic performance in model aerobic oxidation of monomeric lignin-derived alcohols. Further analysis elucidated that encapsulated cobalt and nitrogen-doped graphitic carbon might contribute to the capacity through influencing the electronic properties of outer layers. Moreover, through isolation by N-doped graphitic carbon shells, the inner metallic cobalt NPs are inaccessible in term of either alcohols or oxygenated products, and a distinctive resistance to leaching and agglomeration has been achieved.
WOS关键词HYDROGEN EVOLUTION REACTION ; VISIBLE-LIGHT PHOTOREDOX ; ORGANIC FRAMEWORKS ; HIGHLY EFFICIENT ; METAL-CATALYSTS ; SINGLET OXYGEN ; NANOPARTICLES ; REDUCTION ; GRAPHENE ; ACID
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000428378300026
出版者WILEY-V C H VERLAG GMBH
源URL[http://cas-ir.dicp.ac.cn/handle/321008/168970]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Ma, Hong; Xu, Jie
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Yuxia,Ma, Hong,Luo, Yang,et al. Activation of Molecular Oxygen Using Durable Cobalt Encapsulated with Nitrogen-Doped Graphitic Carbon Shells for Aerobic Oxidation of Lignin-Derived Alcohols[J]. CHEMISTRY-A EUROPEAN JOURNAL,2018,24(18):4653-4661.
APA Sun, Yuxia,Ma, Hong,Luo, Yang,Zhang, Shujing,Gao, Jin,&Xu, Jie.(2018).Activation of Molecular Oxygen Using Durable Cobalt Encapsulated with Nitrogen-Doped Graphitic Carbon Shells for Aerobic Oxidation of Lignin-Derived Alcohols.CHEMISTRY-A EUROPEAN JOURNAL,24(18),4653-4661.
MLA Sun, Yuxia,et al."Activation of Molecular Oxygen Using Durable Cobalt Encapsulated with Nitrogen-Doped Graphitic Carbon Shells for Aerobic Oxidation of Lignin-Derived Alcohols".CHEMISTRY-A EUROPEAN JOURNAL 24.18(2018):4653-4661.

入库方式： OAI收割

来源：大连化学物理研究所

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