| Vacancy and surface modulation engineering of CuxCo3-xO4 nanowires as an advanced cathode for zinc-ion hybrid supercapacitors | |
| Zhang, Xiaofeng1; Akkinepally, Bhargav2,3; Han, Kaiming4; Jelani, Mohsan5; Javed, Muhammad Sufyan1; Khan, Shaukat6; Hussain, Iftikhar7; Hassan, Ahmed M.8; Alshgari, Razan A.9; Mushab, Mohammed9; Arifeen, Waqas Ul2; Han, Weihua1 | |
| 2023-11-25 | |
| Online publication date | 2023-07 |
| Source Publication | Journal of Energy Storage Impact Factor & Quartile |
| ISSN | 2352-152X |
| Volume | 72 |
| page numbers | 11 |
| Abstract | Zn-ion hybrid supercapacitors (ZHSCs) with high power and energy density have great potential in energy storage applications such as hybrid vehicles and renewable energy storage. However, the large radius of hydrated Zn2+-ions hampers their efficient storage in micropores with limited pore sizes, resulting in limited weight ratio capacitance and poor rate capability of ZHSCs. In this study, we developed the novel N-doped and oxygen vacancy-rich CCO nanowires (N-Ov-CCO@CC) architecture with the help of Chemical Vapor Deposition (CVD). Due to the guiding synergy of N-doping, defects, and surface engineering, N-Ov-CCO@CC exhibits significantly enhanced electrochemical performance. The N-Ov-CCO@CC single electrode exhibits excellent charge storage properties, including a high capacitance of 1480.7 F/g at 1 A/g, excellent rate-capability (88.4 % at 20 A/g), and excellent cycle stability of up to 90.1 % for 5000 cycles. The charge storage mechanism was analyzed by ex-situ XRD and XPS, and it reveals that the pseudocapacitive charge storage characteristics are dominant. Operating in the potential range of 1.2–2.0 V, the N-Ov-CCO@CC//Zn-ZHSC provides a high capacitance of 308.2 F/g at 1 A/g, excellent rate capability (86.9 % at 10 A/g), long lifetime (97 % after 10,000 cycles), and high specific energy/power (134.32 Wh/kg at 9507.6 W/kg). Density function theory (DFT) validations show that the N-Ov-CCO system possesses higher conductivities than Ov-CCO and pristine CCO. This work provides an effective strategy for constructing multifunctional electrochemical energy materials for ZHSCs. © 2023 Elsevier Ltd |
| Keyword | Chemical vapor deposition Copper compounds Density functional theory Doping (additives) Electrodes Energy storage Ions Nanowires Oxygen Oxygen vacancies Pore size Storage (materials) Supercapacitor Zinc Zinc compounds Charge storage Cuxco3-xO4 Hybrid supercapacitors N-doped Pseudocapacitive Rate capabilities Surface modulations Zinc ions Zinc-ion hybrid supercapacitor Zn ions |
| Publisher | Elsevier Ltd |
| DOI | 10.1016/j.est.2023.108504 |
| Indexed By | EI ; SCIE |
| Language | 英语 |
| WOS Research Area | Energy & Fuels |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:001049405700001 |
| EI Accession Number | 20233114474808 |
| EI Keywords | Capacitance |
| EI Classification Number | 525.7 Energy Storage ; 546.3 Zinc and Alloys ; 694.4 Storage ; 701.1 Electricity: Basic Concepts and Phenomena ; 704.1 Electric Components ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 804 Chemical Products Generally ; 922.1 Probability Theory ; 931.2 Physical Properties of Gases, Liquids and Solids ; 931.3 Atomic and Molecular Physics ; 931.4 Quantum Theory ; Quantum Mechanics ; 933 Solid State Physics ; 933.1 Crystalline Solids ; 951 Materials Science |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/532321 |
| Collection | 兰州大学 |
| Corresponding Author | Javed, Muhammad Sufyan; Han, Weihua |
| Affiliation | 1.School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China; 2.School of Mechanical Engineering, Yeungnam University, Daehak-ro, Gyeongbuk-do, Gyeongsan-si; 38541, Korea, Republic of; 3.School of General Education, Yeungnam University, Daehak-ro, Gyeongbuk-do, Gyeongsan-si; 38541, Korea, Republic of; 4.School of Physical Science and Technology, Inner Mongolia University, Hohhot; 010021, China; 5.Department of Physics, University of Kotli, Azad Jammu and Kashmir, Kotli; 11100, Pakistan; 6.Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah; 211, Oman; 7.Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong; 8.Faculty of Engineering and Technology, Future University in Egypt, New Cairo; 11835, Egypt; 9.Chemistry Department, College of Science, King Saud University, Riyadh; 11451, Saudi Arabia |
| First Author Affilication | Lanzhou University |
| Corresponding Author Affilication | Lanzhou University |
| Recommended Citation GB/T 7714 | Zhang, Xiaofeng,Akkinepally, Bhargav,Han, Kaiming,et al. Vacancy and surface modulation engineering of CuxCo3-xO4 nanowires as an advanced cathode for zinc-ion hybrid supercapacitors[J]. Journal of Energy Storage,2023,72. |
| APA | Zhang, Xiaofeng.,Akkinepally, Bhargav.,Han, Kaiming.,Jelani, Mohsan.,Javed, Muhammad Sufyan.,...&Han, Weihua.(2023).Vacancy and surface modulation engineering of CuxCo3-xO4 nanowires as an advanced cathode for zinc-ion hybrid supercapacitors.Journal of Energy Storage,72. |
| MLA | Zhang, Xiaofeng,et al."Vacancy and surface modulation engineering of CuxCo3-xO4 nanowires as an advanced cathode for zinc-ion hybrid supercapacitors".Journal of Energy Storage 72(2023). |
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