scholarly journals Effects of the carbon nanotube length on its chemically modified electrode electrochemical performances

2012 ◽  
Vol 27 ◽  
pp. 1405-1410
Author(s):  
Rong Yang ◽  
Qi Jiang ◽  
Puyang Cao ◽  
Lingbao Ren ◽  
YaJun Hu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Modified Electrode ◽  
Chemically Modified Electrode ◽  
Electrochemical Performances ◽  
Chemically Modified

Rapid Detection of Copper by the Carbon Nanotube Chemically Modified Electrode

2011 ◽  
Vol 688 ◽  
pp. 255-259
Author(s):  
Rong Yang ◽  
Qi Jiang ◽  
Peng Liu ◽  
Qin Chen ◽  
Yi Jia Wang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Modified Electrode ◽  
Copper Ion ◽  
Chemical Vapor ◽  
Chemically Modified Electrode ◽  
Linear Range ◽  
Electrochemical Performances ◽  
Chemically Modified ◽  
And Performance

Since carbon nanotube (CNT) was discovered, it has been focused due to its distinctive structure and performance. In electrochemical field, CNT can be used as the modified material to prepare CNT chemically modified electrode (CNT-CME) and shows excellent electrochemical performances. A CNT-CME was obtained via growing CNT on the graphite electrode in situ by catalyst chemical vapor deposition. The obtained grown in situ CNT-CME (named as GSCNT-CME) had shown good testing accuracy and good electrochemical response. In this paper, the GSCNT-CME was used to detect copper ion in water via the cyclic voltammetry. The results showed that the linear range of GSCNT-CME to copper was from 1.0×10-5 to 2.5×10–3 mol/L in 0.6 mol/L H2SO4 supporting solution (with the scanning rate of 10 mV/s). The linear range was exactly the most in need of detection Cu2+ concentration (from 1.57×10-5 to 1.0×10–3 mol/L) according to the Ⅱ, Ⅲ and Ⅳ drinking water national required standard (GB3838-83, ≤1.57×10-5 mol/L). And the detection limit was 2.64×10-6 mol/L (S/N=3). At the same time, the recovery of copper ion was 93.04%-99.79%. The results indicated that GSCNT-CME had the important value of practical application to rapid detect copper ion in water.

Detection Trace Copper by Carbon Nanotube Chemically Modified Electrode via Flame Synthesis

2011 ◽  
Vol 688 ◽  
pp. 37-40
Author(s):  
Qi Jiang ◽  
Rong Yang ◽  
Zheng Wen He ◽  
Bin Huang ◽  
Yong Zhao
Keyword(s):  
Carbon Nanotube ◽  
Modified Electrode ◽  
Electrochemical Detection ◽  
Graphite Electrode ◽  
Chemically Modified Electrode ◽  
Detection Sensitivity ◽  
Flame Synthesis ◽  
Chemically Modified ◽  
Ethanol Flame

The grown in situ carbon nanotube chemically modified electrode (GSCNT-CME) was prepared by growing carbon nanotube (CNT) in situ on the pretreated graphite electrode (GE) via a liquid ethanol flame. The GSCNT-CME was applied to detect the trace copper in water. The researching results showed that the GSCNT-CME has good electrochemical detection sensitivity and accuracy in the detection of trace copper in water.

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