Study on MWCNTs Catalyze Electrogenerated Chemiluminescence of Ru(bpy)32+

2011 ◽  
Vol 694 ◽  
pp. 508-512 ◽  
Author(s):  
Wei Ling Guo ◽  
En Zhong Li ◽  
Da Xiang Yang ◽  
Hao Chen ◽  
Hai Dou Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Transfer Reaction ◽  
Electrode Materials ◽  
Electrochemical Reaction ◽  
Electronic Conductivity ◽  
Electron Transfer Reaction ◽  
Electrogenerated Chemiluminescence ◽  
Applied Potential ◽  
Positive Potential ◽  
High Electronic Conductivity

Carbon nanotubes (CNTs) have the ability to promote electron transfer reaction when used as electrode materials in electrochemical reaction owing to their high electronic conductivity. The modified glassy electrode coated with multi-walled nanotubes (MWCNTs/GC) is used to detect Electrogenerated Chemiluminescence (ECL) of Ru(bpy)32+ aqueous solution. When the applied potential on the working electrode is at at positive potential of +0.3 V (s. Ag/AgCl), a strong cathodic ECL of Ru(bpy)32+ is observed。This property of MWCNTs/GC is used to examine dopamine (DA) in solution.

Properties and Fabrication of Alumina Dispersion Strengthened Copper Alloy with High Softening Temperature

2013 ◽  
Vol 749 ◽  
pp. 425-431 ◽  
Author(s):  
Sheng Li Han ◽  
Xiao Dong Qin ◽  
Yi Xiang Cai ◽  
Kai Luo ◽  
Huan Wen Xie ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Copper Alloy ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Hot Extrusion ◽  
Softening Temperature ◽  
Resistance Welding ◽  
High Electronic Conductivity ◽  
High Softening Temperature ◽  
The Ideal

Cu-Al2O3 alloy combine both high electronic conductivity and high softening temperature. Cu-Al2O3 alloy was fabricated by internal oxidation and hot extrusion methods in the present investigation. Microstructure and properties of Cu-Al2O3 alloy was studied. The influence of preparation parameters, hot extrusion parameters and heat treatment on the properties of the alloy was investigated. The results indicated that the grain of the alloy was very small with a size between 2-10μm. Softening temperature of the Cu-0.6% Al2O3 alloy and Cu-1.0% Al2O3 alloy was 900. Cu-0.6%Al2O3 alloy and Cu-1.0% Al2O3 alloy meeting the requirements for electrode in resistance welding is the ideal substitution of the traditional electrode materials for resistance welding.

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