Graphene Nanosheet/Ni2+/Al3+ Layered Double-Hydroxide Composite as a Novel Electrode for a Supercapacitor
Abstract
A hybrid chemically converted graphene nanosheet/Ni 2+ /Al 3+ layered double-hydroxide (GNS/LDH) composite for supercapacitor material has been fabricated by a hydrothermal method. Scanning electron microscopy and transmission electron microscopy results reveal that Ni 2+ /Al 3+ LDH platelets homogeneously grew onto the surfaces of the GNSs as spacers to keep the neighboring sheets separate. Electrochemical properties were characterized by cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy. The composite exhibits a maximum specific capacitance of 781.5 F/g and excellent cycle life with an increase of the specific capacitance of 38.07% after 50 cycle tests. Even after 200 cycle tests, the increase of the capacitance is 22.56% compared with the initial capacitance.
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Graphene-based nanocomposites have the potential to ameliorate energy storage devices by leveraging the ample specific surface area of graphene and Faradaic redox reactions of TMDs or LDHs.
“Such graphene-based nanocomposites have the potential to ameliorate energy storage devices by leveraging the ample specific surface area of graphene and Faradaic redox reactions of TMDs or LDHs.27−32”
From Integrated Energy Aerogel of N,S-rGO/WSe <sub>2</sub> /NiFe-LDH for Both Energy Conversion and Storage (2017) · cites this paper as [28]
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Wang, H., Casalongue, H. S., Liang, Y., & Dai, H. (2010) · Journal of the American Chemical Society · doi:10.1021/ja102267j · Cited by 2,042 · see citing works
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Li, Z., Niu, W., Zhou, L., & Yang, Y. (2018) · ACS Energy Letters · doi:10.1021/acsenergylett.8b00174 · Cited by 162 · see citing works
Self-citationXu, X., Chu, H., Zhang, Z., Dong, P., Baines, R., Ajayan, P. M., Shen, J., & Ye, M. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b09866 · Cited by 77 · see citing works
Li, Y., Jiang, K., Yang, J., Zheng, Y., Hübner, R., Ou, Z., Dong, X., He, L., Wang, H., Li, J., et al. (2021) · Small · doi:10.1002/smll.202102159 · Cited by 56 · see citing works
Ji, X., Zhang, W., Shan, L., Tian, Y., & Liu, J. (2015) · Scientific Reports · doi:10.1038/srep18367 · Cited by 37 · see citing works
- Authors
- Gao, Z., Wang, J., Li, Z., Yang, W., Wang, B., Hou, M., He, Y., Liu, Q., Mann, T., Yang, P., Zhang, M., & Liu, L.
- Affiliations
- Harbin Engineering University (CN)
- Corresponding author
- Wang, Jun
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-07-07
- Volume
- 23
- Issue
- 15
- Pages
- 3509-3516
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2312628208
- Cited by
- 542
- References
- 1
- Citations by year
- 2026: 13 · 2025: 16 · 2024: 12 · 2023: 19 · 2022: 14 · 2021: 27 · 2020: 34 · 2019: 45 · 2018: 40 · 2017: 67 · 2016: 46 · 2015: 64 · 2014: 46 · 2013: 59 · 2012: 36
- FWCI
- 18.38
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemistry of Materials (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
- Physical Sciences › Materials Science › Materials Chemistry › Layered Double Hydroxides Synthesis and Applications
- Physical Sciences › Materials Science › Materials Chemistry › MXene and MAX Phase Materials
- Keywords
- graphene nanosheets, supercapacitor electrodes, hybrid composites, specific capacitance, cycling stability, hydrothermal synthesis, electrochemical energy storage
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