A novel carbon nanotube structure formed in ultra-long nanochannels of anodic aluminum oxide templates

Article Abstract:

A novel approach to prepare uniform carbon nanotubes in anodic aluminum oxide (AAO) nanochannels at low temperatures is discussed. It is seen that the vapor phase of ethylene is not able to fully reach the close ends of the AAO channels if the channels have only one open end and therefore CNTS can not grow along with the whole ultra long and ultra small AAO channels that had close ends.

Cyclic Crude and Intermediate Manufacturing, Ethylene, Aluminum Oxide, Electric properties, Carbon compounds

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In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts

Article Abstract:

The study used the fluidized bed in situ cell to examine the surface under reducing and oxidizing condition and determine the surfaces structure as a function of temperature and chromium oxide loading. It concluded that the reduction of the sample in hydrogen gas leads to the formation of nanocrystalline Cr(super 3+) species.

Science & research, Chromium Compounds, Research, Methods, Oxidation-reduction reaction, Oxidation-reduction reactions, Thermal properties, Raman effect

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