【摘 要】
：
Liquefied petroleum gas (LPG), a cheap industrial material, is used as carbon source to produce carbon nanotube (CNT) arrays on ceramic spherical surface on a l
【机 构】
：
Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology
论文部分内容阅读
Liquefied petroleum gas (LPG), a cheap industrial material, is used as carbon source to produce carbon nanotube (CNT) arrays on ceramic spherical surface on a large scale in the floating catalyst process. The ceramic spheres provide huge surface area and good mobility, leading to the mass production of CNT arrays continuously. The arrays obtained from the surface are of good alignment, and the purity is as high as 97.5%. With the decrease of the growth temperature, CNTs in the array form with small-diameter of about 13 nm can be obtained. Therefore, with the industrial fuel as carbon source and the ceramic sphere as substrate, CNT arrays can easily be produced on large scale at low cost.
其他文献
介绍了用于HI-13串列加速器质谱(AMS)测量的182Hf实验室参考标准的研制.通过180Hf的连续热中子俘获产生182Hf,用热电离质谱对初始参考标准的同位素比进行了精确测量.取一定量
We study the ground state entanglement in a three-qubit XY chain under the influence of a magnetization current. It is found that the ground state changes from
电子冷却本质上是电子冷却作用与重离子束内散射作用的动态平衡过程.在Bjorken和Mtingwa束内散射理论的基础上,应用对称椭圆积分的方法做束内散射增长率的数值模拟,并应用于H
We present an algorithm to decompose a polynomial system into a finite set of normal ascending sets such that the set of the zeros of the polynomial system is t
Mulberry longicorn beetle, Apriona germari, has been reported to produce two endo-β-l,4-glucanases or AgEGases (accession Nos. Q6SS52 and Q5XQD1). AgEGase sequ
Using a spatially symmetric phenyldithiolate molecule sandwiched between two gold electrodes as model system and through shifting one electrode from symmetric c
采用脉冲场凝胶电泳技术检测并定量分析了CFBR-Ⅱ快中子脉冲堆产生的快中子在不同剂量和剂量率条件下,对枯草芽孢杆菌黑色变种(ATCC 9372)DNA双链断裂的诱导.通过DNA释放百分
An experimental investigation was performed on Marangoni effect of cracked liquid film of aqueous Na2SO4 flowing over a vertical heated plate by using a sensiti
X射线衍射增强成像技术可以精确得到样品内部结构的折射角信息,对提高轻元素物质的成像衬度有着重要的意义.本文对楔型和圆形两种模型样品进行了DEI实验的研究,对3种不同能量
This paper is concerned with the problem of the best restricted range approximations of complex-valued continuous functions. Several properties for the approxim