Fabrication of nanoporous carbon by electrical transformation of amorphous carbon nanospheres

被引：4
作者：
Briston, K. J. [1 ]
Martin, J-M [2 ]
Heau, C. [3 ]
Martin, M. [3 ]
Inkson, B. J. [1 ]
机构：
[1] Univ Sheffield, Dept Mat Sci & Engn, NanoLAB Ctr, Sheffield, S Yorkshire, England
[2] Ecole Cent Lyon, LTDS, Ecully, France
[3] HEF R&D, Andrezieux Boutheon, France
来源：
NANOTECHNOLOGY | 2012年 / 23卷 / 48期
基金：
英国工程与自然科学研究理事会;
关键词：
CARBIDE-DERIVED CARBON; TITANIUM CARBIDE; ELECTROCHEMICAL CAPACITOR; PLATINUM PARTICLES; SILICON CARBIDE; GRAPHITIZATION; CHLORINATION; SPHERES; PERFORMANCE; MICROSCOPY;
D O I：
10.1088/0957-4484/23/48/485602
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nanoporous carbon nanospheres <150 nm in diameter have been fabricated for the first time by the transformation of amorphous carbon nanospheres under Joule heating. The process, initiated by current densities of 1.5-8 x 10(10) A m(-2), has been imaged in real time in situ in a transmission electron microscope. Significant atomic diffusion and carbon ordering results in the formation of a 3D network of buckled graphitic sheets bounding interlinked <5 nm diameter pores, with greatly enhanced conductivity. Porous carbon nanospheres offer new opportunities for biocompatible drug delivery, catalysis and energy storage.
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页数：8
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