Synthesis and Characterization of Nanoporous Graphitic Nanocages by Sulfur-doping Template Method

doi:10.3724/SP.J.1077.2013.13252

Abstract

Abstract: A new sulfur(S)-doping template approach was demonstrated to fabricate highly nanoporous graphitic nanocages (GNCs) by air-oxidizing the template in the graphitic shells to create nanopores. Sulfur was introduced into graphitic shells, when Fe@C core-shell nanoparticles were prepared and then S-doped GNCs were obtained by removing their ferrous cores. Due to removing S-template, both the specific surface area and the mesopore volume of the GNCs have sharply risen from 540 to 850 m²/g, 0.44 to 0.90 cm³/g, resrepectively. Compared with traditional approaches for highly nanoporous graphitic nanomaterials, present S-template approach can sharply increase specific surface area of GNCs without violently destroying their graphitic structure.

Key words: doping, high specific surface area, graphene, carbon nanohorns, XPS

CLC Number:

TQ174

SHENG Zhao-Min, WANG-Ying, CHANG Cheng-Kang, LIU Xiao-Rong, ZHANG Dong-Yun, LIU Yan. Synthesis and Characterization of Nanoporous Graphitic Nanocages by Sulfur-doping Template Method[J]. Journal of Inorganic Materials, 2013, 28(12): 1376-1380.

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