Electroanalysis Using Macro-, Micro-, and Nanochemical Architectures on Electrode Surfaces. Bulk Surface Modification of Glassy Carbon Microspheres with Gold Nanoparticles and Their Electrical Wiring Using Carbon Nanotubes

2006 ◽  
Vol 78 (17) ◽  
pp. 6102-6108 ◽  
Author(s):  
Xuan Dai ◽  
Gregory G. Wildgoose ◽  
Chris Salter ◽  
Alison Crossley ◽  
Richard G. Compton
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Surface Modification ◽  
Glassy Carbon ◽  
Carbon Microspheres ◽  
Electrode Surfaces ◽  
Bulk Surface ◽  
Electrical Wiring

Preliminary Tests for Grafting p-Nitrophenyl on Carbon Nanotubes

2008 ◽  
Vol 59 (4) ◽  
Author(s):  
Eleonora-Mihaela Ungureanu ◽  
Luisa Pilan ◽  
Aurelia Meghea ◽  
Fabien Le Floch ◽  
Jean-Pierre Simonato ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Glassy Carbon ◽  
Surface Coverage ◽  
Platinum Electrodes ◽  
Radical Species ◽  
Electrode Surfaces ◽  
Diazonium Ion

Experiments concerning the reduction of diazonium ion to radical species realized on glassy carbon and platinum electrodes allowed p-nitrophenyl grafting on the electrode surfaces electrochemically and by immersion. The grafting has been tested electrochemically in order to find the degree of surface coverage by i) cycling voltammetry of the grafted electrode in CH3CN containing 0.1 mol L-1 TBABF4 in the field of potential characteristic for the activity of the nitro groups reduction and/or by ii) cycling the grafted electrode in a transfer solution containing ferrocene in 0.1 M TBABF4 , CH3CN.

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