Solvothermal synthesis and ferromagnetic property of bamboo-shoot-like oriented carbon micromaterials |
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Authors: | YongZhen Yang XuGuang Liu WenFang Ren Li Qiu BingShe Xu |
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Institution: | (1) Key Laboratory of polymer, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, Gansu, China |
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Abstract: | Bamboo-shoot-like oriented carbon micromaterials (BOCMs) were synthesized by a solvothermal method at 450°C for 4 h using
deoiled asphalt (DOA) as carbon source, toluene as solvent, ferrocene as catalyst precursor and amphiphilic triblock copolymer
P123 as surfactant. The morphology and structure of the products were characterized by X-ray diffraction, field emission scanning
electron microscopy, high resolution transmission electron microscopy and Fourier transform infrared spectroscopy. The results
reveal that the obtained products have good distribution with uniform diameters of about 0.5 μm and the lengths of 1–1.5μm,
and hydrogen-carbon bonds are observed on the surface of BOCMs. The growth mechanism of BOCMs is discussed, in which that
the catalysis of ferrocene and the dispersion and assembly of the aromatic molecules of DOA directed by P123 are critical
to the formation of the BOCMs. The coercivity value (231.91 Oe) from the measurement of a vibrating sample magnetometer shows
that the BOCMs have an obvious ferromagnetic behavior. |
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Keywords: | |
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