Next Article in Journal
Increased Flexibility in Lab-on-Chip Design with a Polymer Patchwork Approach
Previous Article in Journal
Micronuclei Detection by Flow Cytometry as a High-Throughput Approach for the Genotoxicity Testing of Nanomaterials
Open AccessArticle

Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO3/MnO Nano-Arrays by One-Step Electrodeposition

1
School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
2
Key Laboratory of ATMMT Ministry of Education & National Engineering Laboratory for Textile Fiber Materials and Processing Technology & Institute of Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(12), 1676; https://doi.org/10.3390/nano9121676
Received: 12 October 2019 / Revised: 17 November 2019 / Accepted: 22 November 2019 / Published: 24 November 2019
La-based perovskite-type oxide is a new type of supercapacitor electrode material with great potential. In the present study, LaMnO3/MnO (LMO/MnO) nano-arrays supported by carbon cloth are prepared via a simple one-step electrodeposition as flexible supercapacitor electrodes. The structure, deposit morphology of LMO/MnO, and the corresponding electrochemical properties have been investigated in detail. Carbon cloth-supported LMO/MnO electrode exhibits a specific capacitance of 260 F·g−1 at a current density of 0.5 A·g−1 in 0.5 M Na2SO4 aqueous electrolyte solution. The cooperative effects of LMO and MnO, as well as the uniform nano-array morphology contribute to the good electrochemical performance. In addition, a symmetric supercapacitor with a wide voltage window of 2 V is fabricated, showing a high energy density of 28.15 Wh·kg−1 at a power density of 745 W·kg−1. The specific capacitance drops to 65% retention after the first 500 cycles due to the element leaching effect and partial flaking of LMO/MnO, yet remains stable until 5000 cycles. It is the first time that La-based perovskite has been exploited for flexible supercapacitor applications, and further optimization is expected. View Full-Text
Keywords: perovskite-type LaMnO3/MnO; supercapacitor flexible electrode; electrochemical properties; carbon cloth; electrodeposition perovskite-type LaMnO3/MnO; supercapacitor flexible electrode; electrochemical properties; carbon cloth; electrodeposition
Show Figures

Graphical abstract

MDPI and ACS Style

Ma, P.P.; Lei, N.; Yu, B.; Liu, Y.K.; Jiang, G.H.; Dai, J.M.; Li, S.H.; Lu, Q.L. Flexible Supercapacitor Electrodes Based on Carbon Cloth-Supported LaMnO3/MnO Nano-Arrays by One-Step Electrodeposition. Nanomaterials 2019, 9, 1676.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop