Fabrication of Graphitic Carbon Spheres via a Hydrothermal Carbonization Combined Catalytic Graphitization Method Using Cobalt as Catalysts

Author:

Li Sai Sai1,Wang Jun Kai1,Zhu Qing1,Zhao Xiao Wei1,Zhang Hai Jun1

Affiliation:

1. Wuhan University of Science and Technology

Abstract

Graphitic carbon spheres (GCS) with an average diameter of 1.6 μm were prepared via a hydrothermal carbonization combined catalytic graphitization method using glucose as carbon source and cobalt nitrate as catalyst precursor. The as-prepared GCS were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. It was found that the optimal weight ratio of Co catalyst for graphitization of amorphous carbonaceous spheres was 2.0 wt%, and the optimal temperature and dwelling time required for graphitization were respectively 1100 °C and 3 h.

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics

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