https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 In-Depth Investigation of Manganese Dioxide as Pseudocapacitive Electrode in Lithium- and Sodium-Doped Ionic Liquids https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:54416 Tue 27 Feb 2024 13:57:07 AEDT ]]> Electroanalytical characterization of electrochemical capacitor systems using step potential electrochemical spectroscopy https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46822 + reference electrode, individual electrode potentials were measured showing that even though it is a symmetrical device, polarization on the positive electrode was always greater than the negative electrode, implying that the negative electrode capacitance is greater. Deconvolution of the i-t transients from the SPECS experiment across the device voltage window can be accomplished in a similar fashion to the study of a single electrode, in which case geometric and porous capacitances, as well as diffusion and residual processes are identified. Similarly, the components of the i-t transients can be converted into voltametric data, providing access to individual electrode performance over a wide range of sweep rates in the device. The inclusion of a sensing electrode between he positive and negative electrodes is also described, providing insight into electrolyte fluxes and electrode stability within the device.]]> Thu 01 Dec 2022 10:00:23 AEDT ]]>