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题名: The Coulombic Nature of Active Nitrogen Sites in N-Doped Nanodiamond Revealed In Situ by Ionic Surfactants
作者: Wu, Kuang-Hsu1;  Lu, Yuefeng2, 3;  Luo, Jingjie1;  Wang, Bolun1;  Xu, Junyuan4;  Cuong Pham-Huu3;  Su, Dangsheng1, 2
关键词: Coulombic interaction ;  in situ characterization ;  ionic surfactant ;  nitrogen-doped carbon ;  nanodiamond ;  oxygen reduction reaction
刊名: ACS CATALYSIS
发表日期: 2017-05-01
DOI: 10.1021/acscatal.7b00579
卷: 7, 页:3295-3300
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The surface activity and charged nature of ionic surfactants (sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB)) are used as in situ probes for the Coulombic nature of active sites in N-doped nanocarbon. In this report, we demonstrate that, by selectively masking charge carrying sites, the active nitrogen sites in N-doped nanodiamond for oxygen reduction reaction are positively charged moieties, rather than those uncharged or negatively charged groups. From the N group analysis by X-ray photoelectron spectroscopy (XPS) and temperature-programmed desorption in a hydrogen gas atmosphere (H-2-TPD), we put forth the concern that the active nitrogen groups in N-doped nanocarbon may contain oxygen and should not be simply classified by the four conventional nitrogen types by XPS binding energy.
关键词[WOS]: OXYGEN REDUCTION ;  CARBON ;  CHEMISTRY
语种: 英语
WOS记录号: WOS:000401054300023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152299
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Liaoning, Peoples R China
3.Univ Strasbourg, ECPM UMR 7515, ICPEES, CNRS, F-67087 Strasbourg 02, France
4.Int Iberian Nanotechnol Lab, P-4715330 Braga, Portugal

Recommended Citation:
Wu, Kuang-Hsu,Lu, Yuefeng,Luo, Jingjie,et al. The Coulombic Nature of Active Nitrogen Sites in N-Doped Nanodiamond Revealed In Situ by Ionic Surfactants[J]. ACS CATALYSIS,2017,7:3295-3300.
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