Cited by 107Supercapacitor Materials and FabricationElectrocatalysts for Energy ConversionMXene and MAX Phase Materials

Carbon/MnO2Double-Walled Nanotube Arrays with Fast Ion and Electron Transmission for High-Performance Supercapacitors

Li, Qi, Lu, Xue-Feng, Xu, Han, Tong, Ye-Xiang, Li, Gao-Ren·2014·ACS Applied Materials & Interfaces

Abstract

The novel carbon (C)/MnO2 double-walled nanotube arrays (DNTAs) are designed and fabricated via template-assisted electrodeposition. The unique DNTA architectures of C/MnO2 composites with high weight fraction of MnO2 allow high electrode utilization ratio and facilitate electron and ion transmission. In the half-cell test, the hybrid C/MnO2 DNTAs as electrodes show a large specific capacitance (Csp) of 793 F/g at the scan rate of 5 mV/s, high energy/power densities, and much enhanced long-term cycle stability. After 5,000 cycles, the Csp retention of C/MnO2 DNTAs keeps ∼97%, which is much larger than 69% of the MnO2 nanotube arrays (NTAs). The symmetrical supercapacitors (SSCs) composed of C/MnO2 DNTAs also show the predominant performance, such as large Csp of 161 F/g and high energy density of ∼35 Wh/kg, indicating that the C/MnO2 DNTAs is a potential electrode for supercapacitors. The high order pore passages, double-walled structures, hollow structures, and high conductivity are responsible for the superior performance of C/MnO2 DNTAs. Such hybrid C/MnO2 DNTAs may bring new opportunities for the development of supercapacitors with superior performance.

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Crossref · 10.1021/am405271q

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  • Wearable supercapacitor materials have shown fast charge and discharge capacity.

    “These materials have shown fast charge and discharge capacity, but also possess low gravimetric and volumetric energy densities180-182.”

    From Wearable biosensors for healthcare monitoring (2019) · cites this paper as [181]

  • Wearable supercapacitor materials possess low gravimetric and volumetric energy densities.

    “These materials have shown fast charge and discharge capacity, but also possess low gravimetric and volumetric energy densities180-182.”

    From Wearable biosensors for healthcare monitoring (2019) · cites this paper as [181]

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Authors
Li, Q., Lu, X.-F., Xu, H., Tong, Y.-X., & Li, G.-R.
Affiliations
  • Sun Yat-sen University (CN)
  • MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275 Guangdong, China
Corresponding author
Li, Gao-Ren
Venue
ACS Applied Materials & Interfaces
Published
2014-02-17
Volume
6
Issue
4
Pages
2726-2733
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2099909016
Cited by
107
References
39
Citations by year
2025: 1 · 2024: 3 · 2023: 1 · 2022: 3 · 2021: 7 · 2020: 11 · 2019: 7 · 2018: 13 · 2017: 15 · 2016: 19 · 2015: 17 · 2014: 10
FWCI
6.87
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
Keywords
supercapacitor electrodes, template-assisted electrodeposition, specific capacitance, energy density, cycling stability, electron and ion transport, hollow nanostructures, symmetric supercapacitor

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