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  24 Electrochemical study of methylalkylviologens using an electrochemical Quartz crystal microbalance
ۼ  WizMAC ۼ  2015-07-20
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24 Electrochemical study of methylalkylviologens using an electrochemical Quartz crystal microbalance

Congmok Lee, Youn Kyung Lee, Youngmi Lee, Il Cheol Jeon.

Journal of Electroanalytical Chemistry. Vol. 463, Issue 2, 12 March 1999, p 224-231

 

 

Fig. 1. Cyclic voltammograms and the corresponding frequency responses in 1 mM C1CnV2 and 0.1 M KCl with scan rate (6) of 40 mV s1: (A) C1C1V2; (B) C1C7V2; (C) C1C8V2; (D) C1C9V2; (E) C1C10V2.

 

 

Fig. 3. Effect of CDs on the cyclic voltammograms and the corresponding frequency responses; solution of 1 mM C1C7VCl2 and 0.1 M KCl in H2O; scan rate (6) of 40 mV s1; in the absence (A), and in the presence of 13 mM of a-CD (B) and 13 mM of b-CD (C).

 

 

Fig. 4. Absorption spectra taken during CV experiments using an ITO glass electrode at the potentials denoted as a to f; other conditions are the same as in Fig. 3A, C, respectively.

 

 

Fig. 5. Results of potential sweep-hold-sweep experiments using Au (upper) and ITO glass electrodes (lower); solution of 1 mM C1C1VCl2 (A) and C1C4VCl2 (B) containing 0.1 M KCl in H2O; scan rate (6) of 40 mV s1. The potential was held at the switching potential (1.1 V) for 30 s; frequency responses are shown (upper) and spectra are taken at 11.3 and 12.5 s after holding the potential for C1C1V and C1C4V, respectively (lower).


 


 


 


 

 
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