乙醇催化裂解制碳纳米管及储氢的性能研究

Synthesis of Carbon Nanotube by Catalytic Pyrolysis of Alcohol and Research the Capability of its Hydrogen Storage

采用乙醇催化裂解法制备碳纳米管，有效解决了以烃为碳源制备的碳纳米管的团聚、长度不可控、分离纯化复杂、得率低的难题，通过透射电镜和拉曼光谱分析表明，使用乙醇催化裂解法可以直接制备纯度高、管长适中的离散碳纳米管。这种碳纳米管在600％以下时不分解，吸附性能优异，在298％、15MPa时最大吸氢量为6．90％，远高于以苯为碳源制备的碳纳米管的最大吸氢量（1．65％），已达到美国能源车用储氢系统的标准。

Takeing catalytic pyrolysis of Alcohol to synthesize Carbon Nanotube could effectively resolve the problems of CNT prepared with hydrocarbon as carbon feeder, such as agglomeration, uncontrolled length, complicated process of separation and purification and low yield, TEM and Raman analysis showed that isolated carbon nanotube（CNT） with high purity and appropriate length could synthesize by pyrolysis method of alcohol directly. This sort of CNT didn＇t decompose below 600Cand owned excellent adsorptive property with a 6.90%（mass ratio）hydrogen storage capacity at 298 K,15 MPa, which was much higher than that of CNT with benzene as carbon feeder with only a 1.65% and reached DOE energy standard of vehicular hydrogen storage.