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Carbon nanotubes and metal oxide composite and its NO gas

Author: BiHongMei
Tutor: ShiKeYing
School: Heilongjiang University
Course: Physical and chemical
Keywords: Electrodeposition Copper ( copper oxide ) / single-walled carbon nanotubes Nickel ( nickel oxide ) / single-walled carbon nanotubes Composites
CLC: TB383.1
Type: Master's thesis
Year: 2010
Downloads: 144
Quote: 0
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Abstract


This thesis uses the DC composite electrodeposition techniques to achieve a room temperature copper ( copper oxide) , with the carbon nanotubes , nickel (nickel oxide) and the carbon nanotube composite , copper (copper oxide ) / single-wall carbon nanotubes and nickel was prepared ( nickel oxide ) / single-walled carbon nanotube composites . UV-vis-NIR, Raman, SEM, TEM characterization methods were used to characterize the above composite . Raman, SEM, TEM study showed that: In the electrodeposition process , the cathode obtained in most of the metal ( metal oxide) / semiconductor-type carbon nanotube composite; obtained in most of the electrolyte is a metal (metal oxide) / metal type carbon nanotube composites . This experiment can achieve a certain degree of separation of the metal type and the semiconductor-type carbon nanotubes . Studies have shown that metals and their oxides in two ways with carbon nanotubes : a way for the metal oxide particles are wrapped between carbon nanotube bundles ; second way for the metal and its oxidation the compound particles are uniformly distributed in the outer side of the carbon nanotube bundles . The experiment also try to use the multi-walled carbon nanotubes functionalized carbon nanotubes for electrochemical deposition . Then, turn all of the above composite material NO atmosphere gas sensing performance test , the researchers found that the metal oxide / semiconductor carbon nanotube composites made ??of gas-sensitive materials , short response time , high sensitivity , can be used to preparing the excellent performance of the detection of a NOx content electrochemical sensor.

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