Thermolytic synthesis of graphitic boron carbon nitride from an ionic liquid precursor: mechanism, structure analysis and electronic properties

被引:70
作者
Fellinger, Tim-Patrick [1 ]
Su, Dang Sheng [2 ]
Engenhorst, Markus [3 ,4 ]
Gautam, Devendraprakash [3 ,4 ]
Schloegl, Robert [2 ]
Antonietti, Markus [1 ]
机构
[1] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, D-14424 Potsdam, Germany
[2] Fritz Haber Inst, Dept Inorgan Chem, D-14195 Berlin, Germany
[3] Univ Duisburg Essen, Fac Engn, D-47057 Duisburg, Germany
[4] Ctr Nanointegrat Duisburg Essen CeNIDE, D-47057 Duisburg, Germany
关键词
OXYGEN-REDUCTION ACTIVITY; C-N MATERIALS; NITROGEN; BCN; NANOTUBES; BN;
D O I
10.1039/c2jm34486f
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Recent work has shown the potential of ionic liquids (ILs) as a precursor for porous networks and nitrogen doped carbon materials. The combination of liquid state and negligible vapour pressure represents almost ideal precursor properties and simplifies the processing drastically. Here, we extend this work to get a deeper insight into the solid formation mechanism and to synthesize a mixed boron carbon nitride species by the thermolysis of N,N'-ethylmethylimidazolium tetracyanoborate (EMIM-TCB), a well-known boron- and nitrogen-containing IL. In contrast to other molecule pyrolysis routes boron carbon nitride shows the average composition "BC3N" and like other IL-derived materials turns out to be distorted graphitic, but thermally and chemically very stable, and possesses favourable electrical properties. The detailed mechanistic investigation using TG-IR, FT-IR, solid-state NMR, Raman, WAXS, EELS, XPS and HRTEM also contributes to the general understanding of IL-based material formation mechanisms.
引用
收藏
页码:23996 / 24005
页数:10
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