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Jiang F, Xie Y, Zhang H, Zhang L, Gao X, Bai H, Yao F, Yue H. Hierarchical core-shelled CoMo layered double hydroxide@CuCo 2S 4 nanowire arrays/nickel foam for advanced hybrid supercapacitors. J Colloid Interface Sci 2025; 677:150-157. [PMID: 39089123 DOI: 10.1016/j.jcis.2024.07.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 08/03/2024]
Abstract
The development of core-shelled heterostructures with the unique morphology can improve the electrochemical properties of hybrid supercapacitors (HSC). Here, CuCo2S4 nanowire arrays (NWAs) are vertically grown on nickel foam (NF) utilizing hydrothermal synthesis. Then, CoMo-LDH nanosheets are uniformly deposited on the CuCo2S4 NWAs by electrodeposition to obtain the CoMo-LDH@CuCo2S4 NWAs/NF electrode. Due to the superior conductivity of CuCo2S4 (core) and good redox activity of CoMo-LDH (shell), the electrode shows excellent electrochemical properties. The electrode's specific capacity is 1271.4 C g-1 at 1 A g-1, and after 10, 000 cycles, its capacity retention ratio is 92.2 % at 10 A g-1. At a power density of 983.9 W kg-1, the CoMo-LDH@CuCo2S4 NWAs/NF//AC/NF device has an energy density of 52.2 Wh kg-1. This indicates that CoMo-LDH@CuCo2S4/NF has a great potential for supercapacitors.
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Affiliation(s)
- Fan Jiang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China
| | - Yanqiu Xie
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China
| | - Haopeng Zhang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China
| | - Liqiu Zhang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, People's Republic of China
| | - Xin Gao
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China
| | - He Bai
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China
| | - Fei Yao
- Department of Materials Design and Innovation, University at Buffalo, North Campus, Buffalo 14260, USA
| | - Hongyan Yue
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150040, People's Republic of China.
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Wang A, Ding R, Li Y, Liu M, Yang F, Zhang Y, Fang Q, Yan M, Xie J, Chen Z, Yan Z, He Y, Guo J, Sun X, Liu E. Redox Electrolytes-Assisting Aqueous Zn-Based Batteries by Pseudocapacitive Multiple Perovskite Fluorides Cathode and Charge Storage Mechanisms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302333. [PMID: 37166023 DOI: 10.1002/smll.202302333] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/24/2023] [Indexed: 05/12/2023]
Abstract
Aqueous Zn-based batteries (AZBs) have attracted intensive attention. However, to explore advanced cathode materials with in-depth elucidation of their charge storage mechanisms, improve energy storage capacity, and construct novel cell systems remain a great challenge. Herein, a new pseudocapacitive multiple perovskite fluorides (ABF3 ) cathode is designed, represented by KMF-(IV, V, and VI; M = NiCoMnZn/-Mg/-MgFe), and constructed Zn//KMF-(IV, V, and VI) AZBs and their flexible devices. Ex situ tests have revealed a typical bulk phase conversion mechanism of KMF-VI electrode for charge storage in alkaline media dominated by redox-active Ni/Co/Mn species, with transformation of ABF3 nanocrystals into amorphous metal oxide/(oxy)hydroxide nanosheets. By employing single or bipolar redox electrolyte strategies of 20 mm [Fe(CN)6 ]3- or/and 10 mm SO3 2- /Cu[(NH3 )4 ]2+ acting on KMF-(IV, V, and VI) cathode and Zn anode, the AZBs show an improved energy storage owing to additional capacity contribution of redox electrolytes. The as-designed Zn//polyvinyl alcohol (PVA)-KOH-K3 [Fe(CN)6 ]//KMF-(IV, V, and VI) redox gel electrolytes-assisting flexible AZBs (RGE-FAZBs) exhibit remarkable performance under different bending angles because of slight dissolution corrosion of zinc anode compared with liquid electrolytes. Overall, the work demonstrates the novel idea of conversion-type multiple ABF3 cathode for redox electrolytes-assisting AZBs (RE-AZBs) and their flexible systems, showing great significance on electrochemical energy storage.
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Affiliation(s)
- Ailin Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Rui Ding
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Yi Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Miao Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Feng Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Yuzhen Zhang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Qi Fang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Miao Yan
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Jinmei Xie
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Zhiqiang Chen
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Ziyang Yan
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Yuming He
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Jian Guo
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Xiujuan Sun
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
| | - Enhui Liu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan, 411105, P. R. China
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Nguyen VT, Sari FNI, Ting JM. 3D hierarchical cobalt vanadate nanosheet arrays on Ni foam coupled with redox additive for enhanced supercapacitor performance. RSC Adv 2022; 12:29170-29176. [PMID: 36320731 PMCID: PMC9555012 DOI: 10.1039/d2ra05679h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/04/2022] [Indexed: 11/08/2022] Open
Abstract
Room-temperature synthesized 3D hierarchical cobalt vanadate (Co3V2O8) nanosheet arrays on Ni foam for use as supercapacitor electrode is presented. In a 3 M KOH electrolyte, the electrode exhibits a capacitance of 109.9 mA h g-1 (878.9 F g-1) at a current density of 1 A g-1. The capacitance is enhanced to 198.1 mA h g-1 (1584.5 F g-1) at 1 A g-1 through the addition of 0.05 M redox-additive K3[Fe(CN)6] into the KOH electrolyte. Furthermore, the Co3V2O8/activated carbon asymmetric supercapacitor cell with the advanced electrolyte outperforms most reported Co3V2O8-based electrodes with a remarkable energy density of 55.5 W h kg-1 at an 800 W kg-1 power density. Combining a facile synthetic strategy and excellent electrochemical performance, the obtained Co3V2O8 exhibits potential for practical application.
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Affiliation(s)
- Van Thanh Nguyen
- Department of Materials Science and Engineering, National Cheng Kung UniversityTainan 70101Taiwan
| | - Fitri Nur Indah Sari
- Department of Materials Science and Engineering, National Cheng Kung UniversityTainan 70101Taiwan
| | - Jyh-Ming Ting
- Department of Materials Science and Engineering, National Cheng Kung UniversityTainan 70101Taiwan,Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung UniversityTainan 70101Taiwan
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