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Dong Z, Zhou Q. Carbon-based nanostructured materials incorporating carbon dots for supercapacitors: a review. NANOSCALE 2025; 17:9786-9803. [PMID: 40152559 DOI: 10.1039/d4nr05096g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2025]
Abstract
Carbon dots (CDs) exhibit unique quantum confinement effects and edge characteristics, in addition to their exceptional stability, large specific surface area and electrical conductivity. One research direction for CDs is to prepare these materials at a low cost and with a high quantum yield. Specifically, CDs encompass CQDs, GQDs, CNDs, and CPDs. Another direction for enhancing the performance of materials is combining various carbon dots with different materials, such as porous carbon, three-dimensional graphene, carbon nanofiber (CNT) fabrics, and networks of CNTs. The combination of various types of carbon dots with 3D nanostructures results in distinct properties. This review aims to summarize recent advancements in 3D carbon-based nanostructured materials incorporating carbon dots for SC applications while documenting their electrochemical properties in a tabular form. Finally, the primary challenges and future perspectives concerning electrode materials are discussed to meaningfully contribute to the advancement of high-performance supercapacitors (SCs).
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Affiliation(s)
- Zhiwei Dong
- Yunnan Normal University, Yuhua District No. 1, Kunming 650500, China.
| | - Qihang Zhou
- Yunnan Normal University, Yuhua District No. 1, Kunming 650500, China.
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A Comprehensive Compilation of Graphene/Fullerene Polymer Nanocomposites for Electrochemical Energy Storage. Polymers (Basel) 2023; 15:polym15030701. [PMID: 36772001 PMCID: PMC9920128 DOI: 10.3390/polym15030701] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 02/01/2023] Open
Abstract
Electricity consumption is an integral part of life on earth. Energy generation has become a critical topic, addressing the need to fuel the energy demands of consumers. Energy storage is an offshoot of the mainstream process, which is now becoming a prime topic of research and development. Electrochemical energy storage is an attractive option, serving its purpose through fuel cells, batteries and supercapacitors manipulating the properties of various materials, nanomaterials and polymer substrates. The following review presents a comprehensive report on the use of carbon-based polymer nanocomposites, specifically graphene and fullerene-based polymer nanocomposites, towards electrochemical energy storage. The achievements in these areas, and the types of polymer nanocomposites used are listed. The areas that lack of clarity and have a dearth of information are highlighted. Directions for future research are presented and recommendations for fully utilizing the benefits of the graphene/fullerene polymer nanocomposite system are proposed.
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Gou Q, Zhao S, Wang J, Li M, Xue J. Recent Advances on Boosting the Cell Voltage of Aqueous Supercapacitors. NANO-MICRO LETTERS 2020; 12:98. [PMID: 34138080 PMCID: PMC7770906 DOI: 10.1007/s40820-020-00430-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/18/2020] [Indexed: 05/10/2023]
Abstract
Due to its ultra-fast charge/discharge rate, long cyclic life span, and environmental benignity, aqueous supercapacitor (SC) is considered as a proper next-generation energy storage device. Unfortunately, limited by undesirable water electrolysis and unreasonable electrode potential range, aqueous SC normally generates a narrow cell voltage, resulting in a low energy density. To address such challenge, enormous efforts have been made to construct high-voltage aqueous SCs. Despite these achievements, the systematic reviews about this field are still rare. To fill this knowledge gap, this review summarizes the recent advances about boosting the cell voltage of aqueous SCs. From the viewpoint of electrode, doping alkali cations, modulating the electrode mass ratio, and optimizing the surface charge density are regarded as three effective pathways to achieve this goal. However, adjusting the appropriate pH level, introducing redox mediators, and constructing "water-in-salt" electrolyte are other three universal routes from the electrolyte aspect. Furthermore, it is also effective to obtain the high-voltage aqueous SCs through asymmetric design, such as designing asymmetric SCs. The confronting challenges and future development tendency towards the high-voltage aqueous SCs are further discussed.
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Affiliation(s)
- Qianzhi Gou
- MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials and Devices Joint Laboratory, School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Shuang Zhao
- MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials and Devices Joint Laboratory, School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Jiacheng Wang
- MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials and Devices Joint Laboratory, School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, People's Republic of China
| | - Meng Li
- MOE Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials and Devices Joint Laboratory, School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, People's Republic of China.
| | - Junmin Xue
- Department of Materials Science and Engineering, CQU-NUS Renewable Energy Materials and Devices Joint Laboratory, National University of Singapore, Singapore, 117573, Singapore
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Zhang Y, Duan S, Li Y, Zhang S, Wu Y, Ma M, Tao C, Zhang Z, Qin D, Xie E. 2.6 V aqueous symmetric supercapacitors based on phosphorus-doped TiO 2 nanotube arrays. Dalton Trans 2020; 49:1785-1793. [PMID: 31971192 DOI: 10.1039/c9dt04316k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Increasing the voltage window of an electrode material is effective for improving the energy density of aqueous symmetric supercapacitors. Herein, a novel aqueous symmetric supercapacitor equipped with a high cell voltage window of 2.6 V was assembled by P-doped TiO2 nanotube arrays on a Ti sheet. The arrays exhibit a wide potential range of about 1.2 V as the cathode, and a stable wide potential range of 1.4 V as the anode was also obtained. These wide potential windows in the cathode and anode render the symmetric supercapacitor with a very large working voltage window reaching 2.6 V, and thus a high volumetric energy density (1.65 mW h cm-3). These results suggest that P-doped TiO2 nanotube arrays can be promising candidates for energy storage devices.
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Affiliation(s)
- Yaxiong Zhang
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Shifang Duan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Yan Li
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Shengming Zhang
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Yin Wu
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Mingyu Ma
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Chunlan Tao
- College of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Zhenxing Zhang
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
| | - Dongdong Qin
- College of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China.
| | - Erqing Xie
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. and Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China
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Qian O, Lin D, Zhao X, Han F. Vertically Oriented Grid-like Reduced Graphene Oxide for Ultrahigh Power Supercapacitor. CHEM LETT 2019. [DOI: 10.1246/cl.190218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ou Qian
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Dou Lin
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xianglong Zhao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Fangming Han
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
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Kulandaivalu S, Hussein MZ, Mohamad Jaafar A, Mohd Abdah MAA, Azman NHN, Sulaiman Y. A simple strategy to prepare a layer-by-layer assembled composite of Ni–Co LDHs on polypyrrole/rGO for a high specific capacitance supercapacitor. RSC Adv 2019; 9:40478-40486. [PMID: 35542630 PMCID: PMC9076277 DOI: 10.1039/c9ra08134h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/28/2019] [Indexed: 12/18/2022] Open
Abstract
A facile and novel electrode material of nickel–cobalt layered double hydroxides (Ni–Co LDHs) layered on polypyrrole/reduced graphene oxide (PPy/rGO) is fabricated for a symmetrical supercapacitor via chemical polymerization, hydrothermal and vacuum filtration. This conscientiously layered composition is free from any binder or surfactants which is highly favorable for supercapacitors. The PPy/rGO serves as an ideal backbone for Ni–Co LDHs to form a free-standing electrode for a high-performance supercapacitor and enhanced the overall structural stability of the film. The well-designed layered nanostructures and high electrochemical activity from the hexagonal-flakes like Ni–Co LDHs provide large electroactive sites for the charge storage process. The specific capacitance (1018 F g−1 at 10 mV s−1) and specific energy (46.5 W h kg−1 at 464.9 W kg−1) obtained for the PPy/rGO|Ni–Co LDHs symmetrical electrode in the current study are the best reported for the two-electrode system for PPy- and LDHs-based composites. The outstanding performance in the prepared LBL film is a result of the LBL architecture of the film and the combined effect of redox reaction and electrical double layer capacitance. A facile and novel electrode material of nickel–cobalt layered double hydroxides (Ni–Co LDHs) layered on polypyrrole/reduced graphene oxide (PPy/rGO) is fabricated for a symmetrical supercapacitor via chemical polymerization, hydrothermal and vacuum filtration.![]()
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Affiliation(s)
- Shalini Kulandaivalu
- Department of Chemistry
- Faculty of Science
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
| | - Mohd Zobir Hussein
- Materials Synthesis and Characterization Laboratory (MSCL)
- Institute of Advanced Technology (ITMA)
- Universiti Putra Malaysia
- 43400 Serdang
- Malaysia
| | - Adila Mohamad Jaafar
- Centre of Foundation Studies for Agricultural Science
- Universiti Putra Malaysia
- 43400 Serdang
- Malaysia
| | | | - Nur Hawa Nabilah Azman
- Department of Chemistry
- Faculty of Science
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
| | - Yusran Sulaiman
- Department of Chemistry
- Faculty of Science
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
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