Fabrication and electrochemical behavior of a sol–gel-derived carbon ceramic composite electrode entrapping 2:18-molybdodiphosphate

2000 ◽  
Vol 277 (1) ◽  
pp. 22-29 ◽  
Author(s):  
Peng Wang ◽  
Xiangping Wang ◽  
Yi Yuan ◽  
Guoyi Zhu
Keyword(s):  
Electrochemical Behavior ◽  
Ceramic Composite ◽  
Composite Electrode ◽  
Sol Gel ◽  
Carbon Ceramic

PQ-Modified Glassy Carbon Ceramic Electrode Based on Sol-Gel Chemistry and its Electrocatalytic Reduction of Iodate

2013 ◽  
Vol 718-720 ◽  
pp. 124-126
Author(s):  
Dan Zi Sun
Keyword(s):  
Glassy Carbon ◽  
Electrode Material ◽  
Electrocatalytic Activity ◽  
Ceramic Composite ◽  
Composite Electrode ◽  
Sol Gel ◽  
Electrocatalytic Reduction ◽  
Good Electrocatalytic Activity ◽  
Carbon Ceramic

9, 10-Phenanthrenequinone (PQ) supported on glassy carbon microparticles by adsorption was dispersed in methyltrimethoxysilane (MTMOS) derived gels to yield a conductive composite which was used as electrode material to fabricate a PQ-modified glassy carbon ceramic composite electrode. It shows good electrocatalytic activity toward the reduction of iodate and could be used as an amperometric sensor for the determination of iodate in table warter.

Carbon Nanotubes-Doped Glassy Carbon Ceramic Composite Electrode and its Electrocatalytic Reduction of Nitrite

2011 ◽  
Vol 306-307 ◽  
pp. 1215-1220 ◽  
Author(s):  
Dan Zi Sun
Keyword(s):  
Carbon Nanotubes ◽  
Glassy Carbon ◽  
Ceramic Composite ◽  
Composite Electrode ◽  
Signal To Noise Ratio ◽  
Sol Gel ◽  
Organically Modified ◽  
Multi Walled Carbon Nanotubes ◽  
Carbon Ceramic ◽  
Walled Carbon Nanotubes

A conductive glassy carbon ceramic composite electrode (GCCE) comprised of multi-walled carbon nanotubes (MWNTs) and glassy carbon microparticles in an organically modified silicate matrix was fabricated using a sol-gel method. The electrode thus prepared exhibits electrocatalytic behavior to the reduction of nitrite and facilitates the detection of nitrite at an applied potential of 0.0 V. A linear range from 2.5×10-5 to 3×10-3 M for the detection of sodium nitrite has been observed at the composite electrode with a sensitivity of 9.6 μA/mM and a detection limit of 9×10-6 M based on a signal-to-noise ratio of 3.

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