Figure 5
From: Excess heat production in the redox couple reaction of ferricyanide and ferrocyanide
Temperature responses against the current sweeps under high magnetic fields. (a) Cell voltage response against current sweep in a rate of 0.05 mA·s−1. Green line A, at 5 T; blue line B, at 10 T; red line C, at 15 T. (b) Compensated temperature difference \(\Delta T^{*}\) vs. current \(I\) plot at 15 T. For comparison, the direct temperature difference \(\Delta T\) measured during the experiment is also plotted. Red line D is the compensated temperature difference, and black line E is the direct temperature difference. The numbers 1, 2 and 3 correspond to those in the locus of \(R_{J} \left( I \right)\). (c) Locus of \(R_{J} \left( I \right)\) vs. \(x\) in ferricyanide-ferrocyanide redox reaction at 15 T. (1) Low current range; (2) middle current range; (3) high current range. The linear regression of the data in the middle current range is shown in the inset. The volume of the solution is v = 7.5 mL, and the sweep rate of the current is a = 0.05 mA·s−1.[K3[Fe(CN)6]] = 300·mol·m−3; [K4[Fe(CN)6]] = 300 mol·m−3; [KCl] = 100 mol·m−3.
