Supercapacitive behavior of electrosynthesized marygold-like structured nickel doped iron hydroxide thin film

Oxygen-enriched activated carbons from pomelo peel in high energy density supercapacitors

“…8c, aer charge-discharge the capacitors between 0 and 1.7 V during 1100 cycles at the current density of 2 A g À1 , it is about 90% of the initial specic capacitances still is retained, indicating of the cell capacitors exhibit long-term cycle stability and good electrochemical reproducibility. Coulomb efficiency was calculated using following equation: 32,33 where T d and T c are discharge time and charge time, respectively. The values of coulomb efficiency were calculated and range from 96.8% to 100% during 1100 cycles for the symmetric supercapacitor.…”

Effect of activation ratio on the characteristics of AC derived from anaerobic digester residue and its applications in supercapacitors

“…The specic capacitance and coulomb efficiency were calculated according to the previous report. 11,12 3. Results and discussion 3.1.…”

LDHs as Electrode Materials for Electrochemical Detection and Energy Storage: Supercapacitor, Battery and (Bio)-Sensor

“…72 Ni 0.28 ( Table 6). In a same way electro-synthesized marigold-like structured Ni-doped (5 at.%) Fe hydroxide thin films are obtained from an aqueous solution of 0.1M Fe sulfate using galvanostatic mode of electrodeposition method [145]. Interesting capacitive properties are obtained in aqueous electrolyte ( Table 6), this in association with a specific energy, a specific power and a coulomb efficiency of 8.32 Wh.kg -1 , 2.5 kW.kg -1 and 92%, respectively.…”