Title of article :
Preparation of carbon nanofibers/carbon foam monolithic composite from coal liquefaction residue
Author/Authors :
Xiao، نويسنده , , Zhi Nan and Zhou، نويسنده , , Ying and Qiu، نويسنده , , Jieshan and Wang، نويسنده , , Zonghua، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
3
From page :
1169
To page :
1171
Abstract :
Carbon nanofibers/carbon foam composites that are made by growing carbon nanofibers (CNFs) on the surface of a carbon foam (CF) have been prepared from coal liquefaction residues (CLR) by a procedure involving supercritical foaming, oxidization, carbonization, and catalytic chemical vapour deposition (CCVD) treatment. These new carbon/carbon composites were examined using SEM, TEM and XRD. The results show that the as-made CF has a structure with cell sizes of 300–600 μm. X-ray diffraction studies show that iron-containing contaminates are present in the CLR. However, these species may act as a catalyst in the CCVD process as established in the literature. After the CCVD treatment, the cell walls of CF are covered by highly compacted CNFs that have external diameters of about 100 nm and lengths of several tens of micrometers. This work may open a new way for direct and effective utilization of the CLR.
Keywords :
carbon foam , Carbon nanofibers , Carbon/carbon composite , Synthesis , Coal liquefaction residue
Journal title :
Fuel
Serial Year :
2010
Journal title :
Fuel
Record number :
1465589
Link To Document :
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