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

Abstract

The structure of materials is closely related to their electrochemical properties. MnMoO4 materials are of good stability using for supercapacitors but their specific capacitance performance is not very excellent. In...

Surfactant-assisted morphology modification of nanostructured MnMoO4 for high-performance asymmetric supercapacitors

“…The calculated energy densities of the ASC device are 39.45, 34.55, 27.26, 18.5, 14.35, 11.10 and 8.61 W h kg −1 at different power densities of 837.66, 1455.85, 2235.82, 2741.87, 3208.07, 4486.53 and 5688.07 W kg −1 , respectively. This performance is significantly higher than some of the MnMoO 4 -based ASC devices, such as MnMoO 4 @MWCNT//AC (18.1 W h kg −1 @362.4 W kg −1 57 ), MnMoO 4 //rGO (23.5 W h kg −1 @187.4 W kg −1 58 ), MnMoO 4 @CNT//AC (29.6 W h kg −1 @660.1 W kg −1 25 ), Ni 3 S 2 @MnMoO 4 //AC (31.4 W h kg −1 @399.9 W kg −1 59 ), S-MnMoO4//AC (47.16 W h kg −1 @849.98 W kg −1 60 ), MnMoO4@NiMoO4@Mn 2 O 3 //AC (49.99 W h kg −1 @877.87 W kg −1 61 ), and MnMoO 4 @CNF//AC (37.4 W h kg −1 @278 W kg −1 62 ). In addition, two serially connected ASC devices successfully illuminated a 5 mm red LED indicator as shown in Fig.…”