碳纳米管(CNT)储氢特性研究

Recent Progress on the Hydrogen Storage in Carbon Nano-tubes(CNT)

碳纳米管 (CNT)因被认为可能是氢能的主要载体而备受关注 ,但近几年来的文献报道不尽一致。文中主要从碳纳米管的制备、结构、理论计算、气态储氢、电化学储氢方面 ,对碳纳米管在储氢领域的研究工作进行分析和讨论。大量研究工作表明 :碳纳米管具有储氢的理想结构 ,它的储氢特性与制备工艺、测试条件、计算方法等密切相关 ,大比表面积、大直径、表面活化和搀杂后的碳纳米管具有好的储氢性能 。

Carbon nano-tubes (CNT) have attracted the attention of the whole world since they were claimed to be the exclusive candidate carrier of hydrogen for the hydrogen vehicle.However,the reports on hydrogen storage materials are quite controversial.In this review,the recent progress on the morphology,microstructure,synthesis,theoretical calculation,hydrogen storage property and electrochemical hydrogen storage of CNT was investigated.The results obtained from a large number of experiments and simulation studies show that CNT has an ideal microstructure suitable for hydrogen storage,and the properties of which is closely associated with the preparation of CNT,testing methods and calculation.Such factors as a large surface area,a big diameter,the surface activation and adulteration are effective elements to improve the hydrogen storage property of CNT. Oriented multi-walled Carbon nano-tubes (MWNTS) have better electrochemical properties than the normal MWNTS.