CAJ | 학술논문

碳/氧化铝复合材料(CCA)作为催化剂载体或吸附剂具有广泛用途.在文献报道中,大部分的碳-氧化铝复合材料是通过热解气相碳氢化合物制得的,这样在氧化铝表面覆盖的碳通常是不均匀的.本文提出了一个操作简便,且重复性高的新方法来制备碳均匀覆盖的碳/氧化铝复合材料--热解均匀分散在氧化铝表面的蔗糖.在这种复合材料中,碳层厚度可控制为一个石墨单层的厚度,且碳的覆盖度及层数可以通过改变浸渍的蔗糖量及浸渍次数来进行调控.
탄/양화려복합재료(CCA)작위최화제재체혹흡부제구유엄범용도.재문헌보도중,대부분적탄-양화려복합재료시통과열해기상탄경화합물제득적,저양재양화려표면복개적탄통상시불균균적.본문제출료일개조작간편,차중복성고적신방법래제비탄균균복개적탄/양화려복합재료--열해균균분산재양화려표면적자당.재저충복합재료중,탄층후도가공제위일개석묵단층적후도,차탄적복개도급층수가이통과개변침지적자당량급침지차수래진행조공.
Carbon-covered alumina (CCA) has been reported to be a promising catalyst support or adsorbent. In the literatures, most of CCAs were prepared by pyrolysis of gaseous hydrocarbon on alumina surface, which was usually not uniformly covered by carbon. In this paper, a simple and novel process has been developed for the preparation of uniform carbon-covered alumina via pyrolysis of sucrose highly dispersed on the surface of alumina. In addition, the coverage and number of carbon layers in CCA can be easily controlled by changing the sucrose content in the precursors and the impregnation times.