An oxygen-deficient cobalt-manganese oxide nanowire doped with P designed for high performance asymmetric supercapacitor

Recent advances in oxygen deficient metal oxides: Opportunities as supercapacitor electrodes

“…Recently, phosphorous (P)-doped oxygen-deficient Co 2 MnO 4Àx were designed by Xiang et al 192 Herein, a double defect (ie, oxygen vacancy and P-doping) were introduced into Co 2 MnO 4 nanowires (P-Co 2 MnO 4Àx ) to enhance the redox kinetics and provide more electrochemical active centers, which contributed to the excellent specific capacitance of 838 F g À1 at 1 A g À1 . 10A.…”

Advances in pseudocapacitive and battery-like electrode materials for high performance supercapacitors

“…Doping a metal oxide is another way to improve its electrochemical properties. 207–212 Ouyang et al 213 reported the hydrothermal growth of S-doped Co 3 O 4 on Ni foam along with the mixed metal sulphide NiCo 2 S 4 . This doped electrode showed a capacity of 10.9 mA h g −1 at a current density of 8 mA cm −2 and CR of 97.35% after 5000 cycles.…”

MnMoO4-S nanosheets with rich oxygen vacancies for high-performance supercapacitors

“…After 5000 cycles of charge and discharge, 95.3% of initial capacity was maintained. 27 So far, there are no attempts to use a few S to replace O in MnMoO 4 to increase the number of oxygen vacancies, so as to improve the specific capacitance of the material on the doping and substitution of anions in MnMoO 4 materials.…”