Highly Self-Healable 3D Microsupercapacitor with MXene–Graphene Composite Aerogel
Abstract
High-performance microsupercapacitors (MSCs) with three-dimensional (3D) structure provide an effective approach to improve the ability of energy storage. Because the electrodes with 3D structure are generally easily destroyed under mechanical deformation in practical applications, we fabricated a self-healable 3D MSC consisting of MXene (Ti 3 C 2 T x )-graphene (reduced graphene oxide, rGO) composite aerogel electrode by wrapping it with a self-healing polyurethane as an outer shell. The MXene-rGO composite aerogel combining large specific surface area of rGO and high conductivity of the MXene can not only prevent the self-restacking of the lamella structure but also resist the poor oxidization of MXene to a degree. The MSC based on a 3D MXene-rGO aerogel delivers a large area specific capacitance of 34.6 mF cm -2 at a scan rate of 1 mV s -1 and an outstanding cycling performance with a capacitance retention up to 91% over 15 000 cycles. The 3D MSC presents an excellent self-healing ability with specific capacitance retention of 81.7% after the fifth healing. The preparation of this self-healable 3D MSC can provide a method for designing and manufacturing next-generation long-life multifunctional electronic devices further to meet the requirements of sustainable development.
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Directly assembled macroporous 3D MXene aerogels show poor mechanical properties.
“Besides, when directly assembled, macroporous 3D MXene aerogels show poor mechanical properties [40,41].”
Cites
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- Authors
- Yue, Y., Liu, N., Ma, Y., Wang, S., Liu, W., Luo, C., Zhang, H., Cheng, F., Rao, J., Hu, X., Su, J., & Gao, Y.
- Affiliations
- Wuhan National Laboratory for Optoelectronics (CN)
- Corresponding author
- Liu, Nishuang
- Gao, Yihua
- ORCID
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-04-12
- Volume
- 12
- Issue
- 5
- Pages
- 4224-4232
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2796574325
- Cited by
- 736
- References
- 2
- Citations by year
- 2026: 34 · 2025: 68 · 2024: 98 · 2023: 99 · 2022: 114 · 2021: 112 · 2020: 94 · 2019: 87 · 2018: 29 · 2013: 1
- FWCI
- 24.12
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Nano (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Natural Science Foundation of Hubei Province (2016CFB432)
- National Natural Science Foundation of China (11674113)
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
- Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
- Physical Sciences › Engineering › Biomedical Engineering › Dielectric materials and actuators
- Keywords
- micro-supercapacitors, self-healing, MXene, Ti3C2Tx, reduced graphene oxide, composite aerogels, three-dimensional electrodes, self-healing polyurethane, specific capacitance, cycling stability, mechanical deformation, energy storage
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