1. Honeycomb-like graphitic ordered macroporous carbon prepared by pyrolysis of ammonium bicarbonate
- Author
-
Wang, Liancheng, Zhang, Junhao, Xu, Liqiang, and Qian, Yitai
- Subjects
- *
HONEYCOMB structures , *GRAPHITE , *POROUS materials , *PYROLYSIS , *ORGANIC synthesis , *AMMONIUM bicarbonate , *CARBON , *MOLECULAR structure , *TRANSMISSION electron microscopy , *X-ray diffraction , *MICROSTRUCTURE - Abstract
Abstract: Honeycomb-like graphitic macroporous carbon (HGMC) was synthesized by means of pyrolysis of NH4HCO3 using Mg powder as reductant in an autoclave at 550°C. The characterization of structure and morphology was carried out by X-ray diffraction (XRD), Raman spectrum, field-emission scanning electron microscopy (FESEM), and (High-resolution) transmission electron microscope [(HR)TEM]. The results of nitrogen adsorption–desorption indicate that the products are macropore materials with the pore size of 1–3μm, and the Brunauer–Emett–Teller (BET) surface area was 14m2/g. As a typical morphology, the possible growth process of HGMC was also investigated and discussed. The experimental results show that the in situ formed MgO microparticles play a template role during the HGMC formation. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF