Journal
ELECTROCHIMICA ACTA
Volume 264, Issue -, Pages 91-100Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2018.01.107
Keywords
MoS2; PANI; Activated CC; Flexible supercapacitors
Categories
Funding
- National Nature Science Foundation of China [U1401246]
- National Nature Science Foundation of Guangdong Province [U1401246]
- Science and Technology Program of Guangdong Province of China [2015B010135011, 2016A020221031, 2017B050504004]
- Science and Technology Program of Guangzhou City of China [201508030018, 201604030040]
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The combination of polyaniline (PANI)-coated molybdenum disulfide (MoS2) and activated carbon cloth (CC) is proposed on the basis of a facial hydrothermal and in situ polymerization. The flexible composite of CC/MoS2/PANI with a three-dimensional sandwich structure displays remarkable electrochemical performance, in terms of the highest specific capacitance of 972 F g(-1) with a current density of 1 A g(-1), compared to CC/MoS2 (425 F g(-1)) and CC/PANI (440 F g(-1)), good rate performance, low internal resistance, and more importantly, a long cycling life and notable electrochemical stability with retention of the initial specific capacitance at 87% after 5000 cycles (a large current density of 10 A g(-1)). The flexible self-assembled supercapacitors (FSCs) can display good electrochemical performance with the specific capacitance of 193.3 F g(-1), as well as outstanding mechanical flexibility. Furthermore, the performance of this flexible device was obviously decreased under various bending states. The present composite design concept opens a new path for the discovery of efficient electrode materials with three-dimensional sandwich structures. (C) 2018 Elsevier Ltd. All rights reserved.
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