Issue 43, 2021

Mesoporous Co–Mo–S nanosheet networks as cathode materials for flexible electrochemical capacitors

Abstract

Molybdenum-based oxides possess high theoretical capacity and excellent cycling stability. However, the poor conductivity limits their wide applications. A simple vulcanization strategy can be employed to improve their electrochemical activity. In this study, we synthesized many Co–Mo–S nanosheet networks as electrode materials by a two-step hydrothermal strategy. These networks delivered a specific capacity of 510 C g−1 at 1 A g−1. An asymmetric supercapacitor was assembled using the as-prepared product as the cathode. It possesses an energy density of 72.25 W h kg−1 at 2700 W kg−1. It still retains 83.4% of initial capacity (2 A g−1) after 9000 cycles. In addition, the device shows outstanding mechanical stability at different folding angles, demonstrating its promising applications in portable micro/nano storage energy devices.

Graphical abstract: Mesoporous Co–Mo–S nanosheet networks as cathode materials for flexible electrochemical capacitors

Article information

Article type
Paper
Submitted
02 Sept. 2021
Accepted
13 Okt. 2021
First published
13 Okt. 2021

CrystEngComm, 2021,23, 7671-7678

Mesoporous Co–Mo–S nanosheet networks as cathode materials for flexible electrochemical capacitors

Y. Sun, X. Wang, W. Zhang and X. Wu, CrystEngComm, 2021, 23, 7671 DOI: 10.1039/D1CE01186C

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