Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths
Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths
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DOI：
10.1002/ceat.201600011
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发表时间：
2016-06
影响因子：
2.1
通讯作者：
A. Kern;Bodo Zierath;Joachim Haertlé;T. Fey;B. Etzold
中科院分区：
文献类型：
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作者：
A. Kern;Bodo Zierath;Joachim Haertlé;T. Fey;B. Etzold
研究了碳化物衍生碳（CDC）整体材料的石墨化和成分对导电性和导热性的影响。采用生物形态大孔 TiC 和 SiC 作为前驱体合成了具有不同孔隙率的碳块。在高温氯化过程中在碳化物中添加或不添加镍、铁和氯化钴的情况下原位进行石墨化。石墨化整体材料显示出改进的性能。结果表明，尽管是石墨碳，但源自碳化物合成的玻璃状碳也显着提高了导热性和导电性。
The influence of graphitization and composition of carbide-derived carbon (CDC) monoliths on the electrical and thermal conductivity was investigated. Carbon monoliths with varying porosities were synthesized employing biomorphous macroporous TiC and SiC as precursors. Graphitization was carried out in situ during high-temperature chlorination with and without addition of nickel, iron, and cobalt chloride to the carbide. The graphitized monoliths showed improved properties. The results demonstrate that despite graphitic carbon also glass-like carbon, stemming from the carbide synthesis, increases the thermal and electrical conductivity significantly.