Limiting current observed under activation conditions

The last set of overcharge tests on the 4P bank was with 4 A and a 12 V limit. This test also activated the CIDs without any catastrophic failures. Figure 17.14 gives a plot of the current, voltage, and temperature for this test. Although the current was constantly being shared as one would observe for an unbalanced cell configuration, the CIDs activated as expected with no catastrophic failures. The test was repeated under the same conditions and the same results were observed. 

Recently the oxidation of Cysteine in acidic medium (Robinson buffer) was reported at GO-cobalt phthalocyanine (GO-Co-1) hybrid immobilized at glassy carbon electrode (GCE) [181]. The electrochemical characterization of the obtained hybrid materials shows ill-defined redox couples attributed to the electroactivity of the cobalt centers. In presence of cysteine under acidic conditions (pH 3), an irreversible catalytic anodic peak was observed at 0.52 V versus Ag/AgCl, while no catalytic activity was observed in alkaline media (pH > 8). The study of electrode material performances was done by chronoamperometric experiments using several cysteine solutions, leading to a linear current variation in the concentration range of 0.03-200 mM with a detection limit of 5.0 nM. The stability of sensor was assessed, as well as its selectivity toward several interfering species including uric acid, ascorbic acid, GSH and nitrate in artificial solution. Finally, the hybrid electrode was also applied to the detection of cysteine in urine samples of healthy... 

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