A single-source route to bulk samples of G sub(3)N and the co-evolution of graphitic carbon microspheres

The thermolysis of commercially available m-phenylenediamine (1,3-(NH sub(2)) sub(2)C sub(6)H sub(4)) at 800 degree C under a static vacuum in a sealed quartz tube provides the first bulk synthesis of C sub(3)N, whose properties have only been predicted theoretically previously. Hollow carbon micros...

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Bibliographic Details
Published in:Carbon (New York) 2013-11, Vol.64, p.6-10
Main Authors: King, T C, Matthews, P D, Holgado, J P, Jefferson, DA, Lambert, R M, Alavi, A, Wright, D S
Format: Article
Language:English
Subjects:
Assembly
Carbon
Diffraction
Electron microscopy
Evolution
Flakes
Microspheres
X-rays
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Summary:The thermolysis of commercially available m-phenylenediamine (1,3-(NH sub(2)) sub(2)C sub(6)H sub(4)) at 800 degree C under a static vacuum in a sealed quartz tube provides the first bulk synthesis of C sub(3)N, whose properties have only been predicted theoretically previously. Hollow carbon microspheres (CMSs) which do not contain significant nitrogen doping (1-3 mu m diameter) are co-produced in the reaction and readily separated from the C sub(3)N flakes. The separate C sub(3)N flakes and CMSs have been characterized by electron microscopy, X-ray spectroscopy and X-ray diffraction. These studies show that the samples of C sub(3)N and CMSs both possess multi-layered turbostratic graphitic structures. A new mechanism for the template-free assembly of CMSs is proposed on the basis of electron microscopy that involves bubble evolution from a static carbonized layer.
ISSN:0008-6223