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- W2038997673 abstract "Research activities on various supercapacitor materials have grown enormously in recent years. Capacitor studies of $Co(OH)_{2}$ over a limited potential window in alkaline electrolytes are reported. A high potential window of a capacitor material is desirable for use in a device. Furthermore, as the specific energy and specific power of a capacitor depend strongly on its voltage, experiments are conducted in the present work to understand the reason for a low potential window for $Co(OH)_{2}$as a capacitor material and also to increase its potential window. Experiments are conducted in NaOH and $Na_{2}SO_{4}$ electrolytes of various concentrations using electrochemically precipitated $Co(OH)_{2}$ on stainless steel current collectors in an aqueous $Co(NO3)_{2}$ electrolyte. Based on the potential window, specific capacitance, and specific energy, it is found that 0.05 M NaOH electrolyte is more appropriate for capacitor properties of $Co(OH)_{2}$ than the rest of the electrolytes studied. Using a $Co(OH)_{2}$ electrode with a specific mass of $1.0 mg cm_{−2}$ in 0.05 M NaOH, a specific capacitance of about 380 $F g_{−1}$ is obtained with a potential window of 0.85V at a charge–discharge current density of $10 A g{−1} (10 mA cm{−2}.)$" @default.
- W2038997673 created "2016-06-24" @default.
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- W2038997673 date "2008-01-01" @default.
- W2038997673 modified "2023-10-17" @default.
- W2038997673 title "Cobalt Hydroxide as a Capacitor Material: Tuning Its Potential Window" @default.
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- W2038997673 doi "https://doi.org/10.1149/1.2977976" @default.
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